Attachment 4 Example Panel Boards and Circuit Breaker.pdf

Installation Consult instructions NEMA PB-1.1 located in the circuit directory on the front door before installing this panelboard. If necessary, order replacement manual from supplier.

Wiring Guidelines (Cu or Al)

• Use 60°C or 75°C ampacity sized wire on line and neutral and equipment ground terminals.

• Standard wire sizes listed in this publication may be changed by using alternate terminal kits.

• Refer to circuit breakers for allowable wire temperature rating, wire size and tightening torque.

• Neutral rated for 200% panelboard phase current option.

• Use copper wire only at neutral main lugs

- 125A (1) neutral cables 250 mcm maximum

- 225A (2) neutral cables 250 mcm maximum

- 400A (2) neutral cables 600 mcm maximum

- 600A (4) neutral cables 350 mcm maximum

Suitable for nonlinear loads, 200% rated neutral, additional “Y” lugs provided for 200% neutral.

Short Circuit Current Rating The panelboard’s maximum short circuit interrupting rating in rms symmetrical amperes, is equal to the lowest interrupting rating of any device installed, except as noted in the series rating listed in DEH-40007, with integral or remote main circuit breaker or fusible switch installed upstream of the panelboard.

Devices to be installed or replacement units shall be from the same manufacturer, of the same type, and have equal or greater interrupting capacity.

Maximum continuous loads on main or branch circuits shall not exceed 80% of the ratings of the listed circuit breakers. Branch breaker straps suitable for 180A maximum.

Tripped Breaker If the breaker trips, handle will be in intermediate position.

Instructions To Restore Power

1. Move handle to OFF position.

2. Then move handle to ON position.

Typical AQ/AL Panelboard

Seismic Rating Meets or Exceeds the Requirements According to

• IEEE-693-2005

High Level with 1.8 Amplication Factor

• IBC-2006

Sds = 1.3g, Ss = 200%, Ip = 1.5, for z/h > 0 Sds = 2.0g, Ss = 300%, Ip = 1.5, for z/h = 0 In accordance with ICC-ES-AC156

Polybag Contents A polybag of goods supplied with every panelboard interior contains:

• Arc flash label

• DEH-40007 Series Ratings, Wiring Diagrams & Circuit Directory

• Series rating sticker

• Front installation instructions

• ANSI PB1 documentation

• Circuit numbering stickers (1-84)

• Front and shield mounting screws

Torque

Rating Pressure Lug Kit Crimp Lug Kit Pressure Lug Kit

Cat. No. Wire Range Al/Cu Cat. No. Wire Range Al/Cu Cat. No. Wire Range Cu Only

125A MLA1 6-350 MLT1 4-300 MLR1 4-350

225A MLA2 1/0-250 MLT2 2/0 - 500 MLR2 1/0-600

400A Standard - MLA41 4-600 MLT41 500-750 (Cu Only) MLR41 1/0-600

Oversize – MLA62 3/0 - 800 (Main) & 4-600 (Neutral) - - - -

600A Standard -MLA61 4-500 - - MLR61 1/0-600

Wire Crimp Tool

All Al & Up to 500 MCM Cu Hubbell Anderson VC6

500-750 MCM Cu Hubbell Anderson VC7

Up to #6-1000 MCM Cu & #5-750 kcmil Al Burndy Tool Y644HS

Holes Wire Size – Cu / Al

Large 2 / 0 - 14

Small No. 4 – 14

Slotted Screw

AWG

Wire

Lbs-Ins

Min Max

14-10 32 35

8 36 40

6-4 41 45

3-2/0 45 50

Screw Size Torque (In-Lbs)

#4 Steel 16

#10 Plastic 16

#8 Cu/Al/Steel 24

#10-32 Cu/Al/Steel 32

1/4-20 Al/<.150 Thick Cu 44

1/4-20 .150 Thick Cu 60

5/16-18 Cu/Al/Steel 110

3/8-16 Cu/Al/Steel 220

1/2-13 Cu/Al/Steel 220

Internal Hex

Hex Size

Lbs-Ins

Min Max

3/16 108 120

1/4 180 200

5/16 240 275

3/8 330 375

1/2 450 500

Lug Kits

Tightening Torque Applies to line, neutral and equipment ground terminal

Torque Values for Hardware

Lug Kits for A-Series II Panelboards

Crimp Tools

Neutral Lug Z

Arc fault label included with all interiors to be applied by electrical contractor.

Interrupting Ratings - Molded Case Circuit Breakers

Circuit Breaker Terminals (Cu-Al) Frame

Poles No. per Pole Cat. No.

Wire Cu-Al (Unless otherwise specified)

Standard Current Limiting / High Interrupting Per Lug Range

THQB, TXQB, THHQB,

THQL, THHQL, TXQL - 1,2,3 1 Fixed to Breaker Terminal 1 (15-30A) #14-4 Cu or #12-4 Al, (35-100A) #14-10 Cu or #12-1/0 Al

- SEH, SEL, SEP 2,3 1 TCAL18 1 #12-3/0 Al; #12-3/0 Cu

SFHA SFLA, SFPA 2,3 1 TCAL129 1 #8-350kcmil

SGHA SGL, SGP

2 1 TCLK265 - 2 (2/0-400kcmil, Cu) or 2 (2/0-500kcmil, Al) or #6-600kcmil

3 1 TCLK365 - 2 (2/0-400kcmil, Cu) or 2 (2/0-500kcmil, Al) or #6-600kcmil

- FGN4, FGH4 2,3 1 FCALK318H - Top Hole #8-400kcmil Cu or #6-500kcmil Al.

Bottom hole #2/0-600kcmil Cu & Al

SKHA8 SKLA8, SKPA8 2,3 1

TCAL41 1 #4-600kcmil or 2(1/0-250kcmil)

TCAL61 2 2/0-500kcmil

TCAL81 3 3/0-500kcmil

Molded Case Circuit Breakers Federal Spec UL Listed Interrupting Ratings in kA

Construction Frame Trip Range (Amps) Pole AC DC C/B Class W-C-375B

RMS Symmetrical AC Volts

120 120/ 240 240 277 480Y/277 480 600

HQ Frame

THQB 15-70 1 120/240 12a 10 10

THQL

15-125 2 120/240 12a 10

15-100 2,3 240 12a 10

THQL-AF 15-20 1 120/240 10

THQL-DF 15-20 1 120 10

THQL-GF 15-30 1,2 120/240 10

THQL-HID 15-20 1,2 120/240 10

THQB-GF 15-30 1,2 120/240 10

THQB-HID 15-20 1,2 120/240 10

TXQB 15-30 1,2 120/240 65

HHQ Frame

THHQB 15-70 1 120/240 14a 22 22

THHQL

15-125 2 120/240 14a 22

15-100 2 240 14b 22

15-100 3 240 14b 22

THHQL-AF 15-20 1 120/240

THHQL-DF 15-20 1 120 22

THHQL-GF 15-30 1 120/240 22

THHQL-HID 15-20 1,2 120/240 22

THHQB-GF 15-30 1 120/240 22

THHQB-HID 15-20 1,2 120/240 22

Standard Frames TQD 125-225 2,3 240 12b 10

TJD 250-400 2,3 240 2501 14b 22

Hi-Break Frames THQD 125-225 2,3 N/A 22

Spectra RMS

SEH2 15-150

2 480 13b, 15b 65 25

3 600 22a 65 25 18

SEL 15-150

2 480 13b, 15b 100 65

3 600 21a, 22a, 23a 100 65 25

SEP 15-150

2 480 16a 200 100

3 600 16a, 23a 200 100 25

SFH 70-250

2 480 13b 65 35

3 600 20a, 22a 65 35 22

SFL 70-250

2 480 13b 100 65

3 600 21a, 23a 100 65 25

SFP 70-250

2 480 16a 200 65

3 600 16a, 23a 200 65 25

SGH42 125-400 2,3 600 21a, 23a 65 35 25

SGH62 250-600 2,3 600 23a 65 35 25

SGL4 125-400 2,3 600 23a 100 65 65

SGP4 125-400 2,3 600 23a 200 100 65

SGL6 250-600 2,3 600 24a 100 65 65

SGP6 250-600 2,3 600 25a 200 100 65

SKH8 300-800 2,3 600 21a, 23a 65 50 25

SKL8 300-800 2,3 600 24a 100 65 42

SKP8 300-800 2,3 600 25a 200 100 65 13 Poles are not DC rated 2Not current limiting breaker type

Wiring Space

Main rating in amps Main Lugs Only, to End Wall

Frame Type Mounting Main Circuit Breaker

Phase Lug Neutral Lug Phase Lug

Neutral Lug To Side Wall (20” Wide box) To End Wall

125A MLO, 100A Main Breaker 6 6 TEY, SE Horizontal 5 - 6 225A 12 12 TFJ, SF Vertical - 6 12 400A 15 113 SF, SG, FG Vertical - 15 113

600A 15 113 SG Vertical - 16 - 800A4 15 113 SK Vertical - 18 -

3To side wall 4Box width is 30” and 7.81” deep

Branch Circuit Devices Frame No. of Poles Minimum Wiring Spaces To Side Wall (20” Wide Box) Double Branched Bolt-on Devices THQL, THHQL, THQB, THHQB 1,2,3 6.5"

Horizontal Subfeeds Single Branch Mounted TQD, THQD 2,3 5.5"

Panel Size Box

Front Cat. No.7

Cat. No.5 Size Inches6

0-25.5 AB25B 25.5 AF25F,S

28.5-31.5 AB31B 31.5 AF31F,S

34.5-37.5 AB37B 37.5 AF37F,S

40.5-43.5 AB43B 43.5 AF43F,S

46.5-49.5 AB49B 49.5 AF49F,S

52.5-55.5 AB55B 55.5 AF55F,S

57.5-64.5 AB64B 64.5 AF64F,S

67.5-76.5 AB76B 76.5 AF76F,S

5“ B” suffix provides blank end walls. Order “K” suffix for endwalls with knockouts.

6Standard boxes are 20” wide by 5.81” deep.

7Flush fronts are 1 1/2” larger than box. Surface fronts are 1/4” larger.

Description Cat. No. Suffix11

Painted Box P 30" wide12 W NEMA 3R/12/4S/4X 3 or 4 NEMA 3RX Door-in-door 3M NEMA 4X (316 Stainless Steel) 4S

11Add to base box product number.

12Includes field installable gutter barrier.

Description Cat. No. Suffix8

Screw cover C Front hinged to box D Yale 5116 w/Rosette Lock Y Corbin 15767 Lock L GE 75 Key Lock E Corbin 60 Key Lock J Door within a door9 P Stainless steel10 S 30” wide W Nameplate N Screw on nameplate U Metal directory M

Dimensions (inches) Cat No.

H W D UL Standard CSA Labeled

25.5 20 6 AB254S AB254AS

25.5 30 8 AB254DWS AB254DWAS

31.5 20 6 AB314S AB314AS

31.5 30 8 AB314DWS AB314DWAS

37.5 20 6 AB374S AB374AS

37.5 30 8 AB374DWS AB374DWAS

43.5 20 6 AB434S AB434AS

43.5 30 8 AB434DWS AB434DWAS

49.5 20 6 AB494S AB494AS

49.5 30 8 AB494DWS AB494DWAS

55.5 20 6 AB554S AB554AS

55.5 30 8 AB554DWS AB554DWAS

64.5 20 6 AB644S AB644AS

64.5 30 8 AB644DWS AB644DWAS

76.5 20 6 AB764S AB764AS

76.5 30 8 AB764DWS AB764DWAS

Minimum Wiring Space, From End of Lug to Box Wall, in Inches

Wiring Space – Branch Circuit Breakers

Enclosures Front Options

Box Options Stainless Steel Enclosures

Description Cat. No.

1-48 APN48

43-84 APN84

85-126 APN126

Permanent Circuit Number Kits

Typical Panelboard Front view with trim removed

Typical Front w/Concealed Hinges and Trim Adjusting Screws Surface mounting – add 1/4” to inside box dimensions Flush mounting – add 1 1/2” to inside box dimensions

8 Add to base front catalog number.

9 Consists of two lockable doors—one over panel interior and one over box wiring gutters. Yale locks not available.

10 Flush only. Available with C and N options.

Typical Box

Wiring Space

Minimum Wiring Space, From End of Lug to Box Wall, in Inches

(1) To side wall (2) Box width is 30” and 7.81” deep

Wiring Space – Branch Circuit Breakers

Branch Circuit Devices Frame No. of Poles Minimum Wiring Spaces To Side Wall (20" Wide Box)

Double Branched Bolt-on Devices THQL, THHQL, THQB, THHQB 1,2,3 6.5" Horizontal Subfeeds Single Branch Mounted TQD, THQD 2,3 5.5"

Main rating in amps

Main Lugs Only, to End Wall Frame

Type Mounting

Main Circuit Breaker Phase Lug Neutral Lug

Phase Lug Neutral Lug To Side Wall (20" Wide box) To End Wall

125A MLO, 100A Main Breaker 6 6 TEY, SE Horizontal 5 - 6 225A 12 12 TFJ, SF Vertical - 6 12 400A 15 11 (1) SF, SG, FG Vertical - 15 11 (1)

600A 15 11 (1) SG Vertical - 16 - 800A (2) 15 11 (1) SK Vertical - 18 -

Typical Panelboard Front view with trim removed

Typical Front w/Concealed Hinges and Trim Adjusting Screws Surface mounting – add 1/4” to inside box dimensions Flush mounting – add 1 1/2” to inside box dimensions

For 3/8” Bolt

Box Width (Inside)

Bo x

H ei gh t (

In si de

3 3

Typical Box

Enclosures

(1) “B” suffix provides blank end walls. Order “K” suffix for endwalls with knockouts.

(2) Standard boxes are 20" wide by 5.81" deep.

(3) Flush fronts are 1 1/2" larger than box. Surface fronts are 1/4" larger.

Box Options

(1) Add to base box product number.

(2) Includes field installable gutter barrier.

Permanent Circuit Number Kits

Front Options

Stainless Steel Enclosures Dimensions (inches) Cat No.

H W D UL Standard CSA Labeled

25.5 20 6 AB254S AB254AS

25.5 30 8 AB254DWS AB254DWAS

31.5 20 6 AB314S AB314AS

31.5 30 8 AB314DWS AB314DWAS

37.5 20 6 AB374S AB374AS

37.5 30 8 AB374DWS AB374DWAS

43.5 20 6 AB434S AB434AS

43.5 30 8 AB434DWS AB434DWAS

49.5 20 6 AB494S AB494AS

49.5 30 8 AB494DWS AB494DWAS

55.5 20 6 AB554S AB554AS

55.5 30 8 AB554DWS AB554DWAS

64.5 20 6 AB644S AB644AS

64.5 30 8 AB644DWS AB644DWAS

76.5 20 6 AB764S AB764AS

76.5 30 8 AB764DWS AB764DWAS

Description Cat. No. Suffix (1)

Screw cover C Front hinged to box D Yale 5116 w/Rosette Lock Y Corbin 15767 Lock L GE 75 Key Lock E Corbin 60 Key Lock J Door within a door (2) P Stainless steel (3) S 30” wide W Nameplate N Screw on nameplate U Metal directory M

Description Cat. No.

1-48 APN48

43-84 APN84

85-126 APN126

Description Cat. No. Suffix (1)

Painted Box P 30" wide (2) W NEMA 3R/12/4S/4X 3 or 4 NEMA 4X (316 Stainless Steel) 4S

Panel Size Box Front Cat. No. (3)Cat. No. (1) Size Inches (2)

0-25.5 AB25B 25.5 AF25F,S

28.5-31.5 AB31B 31.5 AF31F,S

34.5-37.5 AB37B 37.5 AF37F,S

40.5-43.5 AB43B 43.5 AF43F,S

46.5-49.5 AB49B 49.5 AF49F,S

52.5-55.5 AB55B 55.5 AF55F,S

57.5-64.5 AB64B 64.5 AF64F,S

67.5-76.5 AB76B 76.5 AF76F,S

(1) Add to base front catalog number.

(2) Consists of two lock-able doors—one over panel interior and one over box wiring gutters. Yale locks not available.

(3) Flush only. Available with C and N options.

Wiring Space

Minimum Wiring Space, From End of Lug to Box Wall, in Inches

(1) To side wall (2) Box width is 30” and 7.81” deep

Wiring Space – Branch Circuit Breakers

Branch Circuit Devices Frame No. of Poles Minimum Wiring Spaces To Side Wall (20" Wide Box)

Double Branched Bolt-on Devices THQL, THHQL, THQB, THHQB 1,2,3 6.5" Horizontal Subfeeds Single Branch Mounted TQD, THQD 2,3 5.5"

Main rating in amps

Main Lugs Only, to End Wall Frame

Type Mounting

Main Circuit Breaker Phase Lug Neutral Lug

Phase Lug Neutral Lug To Side Wall (20" Wide box) To End Wall

125A MLO, 100A Main Breaker 6 6 TEY, SE Horizontal 5 - 6 225A 12 12 TFJ, SF Vertical - 6 12 400A 15 11 (1) SF, SG, FG Vertical - 15 11 (1)

600A 15 11 (1) SG Vertical - 16 - 800A (2) 15 11 (1) SK Vertical - 18 -

Typical Panelboard Front view with trim removed

Typical Front w/Concealed Hinges and Trim Adjusting Screws Surface mounting – add 1/4” to inside box dimensions Flush mounting – add 1 1/2” to inside box dimensions

For 3/8” Bolt

Box Width (Inside)

Bo x

H ei gh t (

In si de

3 3

Typical Box

Enclosures

(1) “B” suffix provides blank end walls. Order “K” suffix for endwalls with knockouts.

(2) Standard boxes are 20" wide by 5.81" deep.

(3) Flush fronts are 1 1/2" larger than box. Surface fronts are 1/4" larger.

Box Options

(1) Add to base box product number.

(2) Includes field installable gutter barrier.

Permanent Circuit Number Kits

Front Options

Stainless Steel Enclosures Dimensions (inches) Cat No.

H W D UL Standard CSA Labeled

25.5 20 6 AB254S AB254AS

25.5 30 8 AB254DWS AB254DWAS

31.5 20 6 AB314S AB314AS

31.5 30 8 AB314DWS AB314DWAS

37.5 20 6 AB374S AB374AS

37.5 30 8 AB374DWS AB374DWAS

43.5 20 6 AB434S AB434AS

43.5 30 8 AB434DWS AB434DWAS

49.5 20 6 AB494S AB494AS

49.5 30 8 AB494DWS AB494DWAS

55.5 20 6 AB554S AB554AS

55.5 30 8 AB554DWS AB554DWAS

64.5 20 6 AB644S AB644AS

64.5 30 8 AB644DWS AB644DWAS

76.5 20 6 AB764S AB764AS

76.5 30 8 AB764DWS AB764DWAS

Description Cat. No. Suffix (1)

Screw cover C Front hinged to box D Yale 5116 w/Rosette Lock Y Corbin 15767 Lock L GE 75 Key Lock E Corbin 60 Key Lock J Door within a door (2) P Stainless steel (3) S 30” wide W Nameplate N Screw on nameplate U Metal directory M

Description Cat. No.

1-48 APN48

43-84 APN84

85-126 APN126

Description Cat. No. Suffix (1)

Painted Box P 30" wide (2) W NEMA 3R/12/4S/4X 3 or 4 NEMA 4X (316 Stainless Steel) 4S

Panel Size Box Front Cat. No. (3)Cat. No. (1) Size Inches (2)

0-25.5 AB25B 25.5 AF25F,S

28.5-31.5 AB31B 31.5 AF31F,S

34.5-37.5 AB37B 37.5 AF37F,S

40.5-43.5 AB43B 43.5 AF43F,S

46.5-49.5 AB49B 49.5 AF49F,S

52.5-55.5 AB55B 55.5 AF55F,S

57.5-64.5 AB64B 64.5 AF64F,S

67.5-76.5 AB76B 76.5 AF76F,S

(1) Add to base front catalog number.

(2) Consists of two lock-able doors—one over panel interior and one over box wiring gutters. Yale locks not available.

(3) Flush only. Available with C and N options.

Wiring Space

Minimum Wiring Space, From End of Lug to Box Wall, in Inches

(1) To side wall (2) Box width is 30” and 7.81” deep

Wiring Space – Branch Circuit Breakers

Branch Circuit Devices Frame No. of Poles Minimum Wiring Spaces To Side Wall (20" Wide Box)

Double Branched Bolt-on Devices THQL, THHQL, THQB, THHQB 1,2,3 6.5" Horizontal Subfeeds Single Branch Mounted TQD, THQD 2,3 5.5"

Main rating in amps

Main Lugs Only, to End Wall Frame

Type Mounting

Main Circuit Breaker Phase Lug Neutral Lug

Phase Lug Neutral Lug To Side Wall (20" Wide box) To End Wall

125A MLO, 100A Main Breaker 6 6 TEY, SE Horizontal 5 - 6 225A 12 12 TFJ, SF Vertical - 6 12 400A 15 11 (1) SF, SG, FG Vertical - 15 11 (1)

600A 15 11 (1) SG Vertical - 16 - 800A (2) 15 11 (1) SK Vertical - 18 -

Typical Panelboard Front view with trim removed

Typical Front w/Concealed Hinges and Trim Adjusting Screws Surface mounting – add 1/4” to inside box dimensions Flush mounting – add 1 1/2” to inside box dimensions

For 3/8” Bolt

Box Width (Inside)

Bo x

H ei gh t (

In si de

3 3

Typical Box

Enclosures

(1) “B” suffix provides blank end walls. Order “K” suffix for endwalls with knockouts.

(2) Standard boxes are 20" wide by 5.81" deep.

(3) Flush fronts are 1 1/2" larger than box. Surface fronts are 1/4" larger.

Box Options

(1) Add to base box product number.

(2) Includes field installable gutter barrier.

Permanent Circuit Number Kits

Front Options

Stainless Steel Enclosures Dimensions (inches) Cat No.

H W D UL Standard CSA Labeled

25.5 20 6 AB254S AB254AS

25.5 30 8 AB254DWS AB254DWAS

31.5 20 6 AB314S AB314AS

31.5 30 8 AB314DWS AB314DWAS

37.5 20 6 AB374S AB374AS

37.5 30 8 AB374DWS AB374DWAS

43.5 20 6 AB434S AB434AS

43.5 30 8 AB434DWS AB434DWAS

49.5 20 6 AB494S AB494AS

49.5 30 8 AB494DWS AB494DWAS

55.5 20 6 AB554S AB554AS

55.5 30 8 AB554DWS AB554DWAS

64.5 20 6 AB644S AB644AS

64.5 30 8 AB644DWS AB644DWAS

76.5 20 6 AB764S AB764AS

76.5 30 8 AB764DWS AB764DWAS

Description Cat. No. Suffix (1)

Screw cover C Front hinged to box D Yale 5116 w/Rosette Lock Y Corbin 15767 Lock L GE 75 Key Lock E Corbin 60 Key Lock J Door within a door (2) P Stainless steel (3) S 30” wide W Nameplate N Screw on nameplate U Metal directory M

Description Cat. No.

1-48 APN48

43-84 APN84

85-126 APN126

Description Cat. No. Suffix (1)

Painted Box P 30" wide (2) W NEMA 3R/12/4S/4X 3 or 4 NEMA 4X (316 Stainless Steel) 4S

Panel Size Box Front Cat. No. (3)Cat. No. (1) Size Inches (2)

0-25.5 AB25B 25.5 AF25F,S

28.5-31.5 AB31B 31.5 AF31F,S

34.5-37.5 AB37B 37.5 AF37F,S

40.5-43.5 AB43B 43.5 AF43F,S

46.5-49.5 AB49B 49.5 AF49F,S

52.5-55.5 AB55B 55.5 AF55F,S

57.5-64.5 AB64B 64.5 AF64F,S

67.5-76.5 AB76B 76.5 AF76F,S

(1) Add to base front catalog number.

(2) Consists of two lock-able doors—one over panel interior and one over box wiring gutters. Yale locks not available.

(3) Flush only. Available with C and N options.

Accessories Field Installed Kits/Replacement Parts

Item Description Wire Range Cat. No.

Metal Equipment

Ground

Bonded #14-#8 Cu, #12-#8 Al (small holes);

#14-#4 Cu, #6-#4 Al (large holes) TGL2

Extruded Bonded #14-#8 Cu, #12-#8 Al (small holes);

#14-#4 Cu, #6-#4 Al (large holes) EGS12

Aluminum Equipment

Ground

Extruded Bonded (1) #6-350MCM AEBG Extruded Isolated (2) #6-250MCM AEIG

Main Lug #14-#8 Cu, #12-#8 Al (small holes);

#14-#4 Cu, #6-#4 Al (large holes) TGL2

Copper Equipment

Ground

Bonded #14-#8 Cu, #12-#8 Al (small holes);

#14-#4 Cu, #6-#4 Al (large holes) TGC2

Extruded Bonded (1) #4-350MCM AEBGC Extruded Isolated (1) #6-250MCM AEIGC Insulated Isolated 2/0 max. ASPGIBC

Box Width and Depth Box Mounting Box Extension Length (Inches) Cat. No.

20 x 5.81

Flush

9 ABX2509F

18 ABX2518F

24 ABX2524F

Surface

9 ABX2509S

18 ABX2518S

24 ABX2524S

31 ABX2531S

37 ABX2537S

43 ABX2543S

49 ABX2549S

55 ABX2555S

64 ABX2564S

76 ABX2576S

30 x 5.81 Flush

18 ABX3518F

24 ABX3524F

Surface

18 ABX3518S

24 ABX3524S

30 x 7.81 Flush

18 ABX3718F

24 ABX3724F

Surface

18 ABX3718S

24 ABX3724S

Breaker Type Cat. No.

THQB/THHQB/THQL THHQL/TEY TQLFP1

TQD/THQD/TED4/SE/FB TEDFP1

Breaker Type Cat. No.

TED/THED4/SE ASPTED3P

TQD/THQD ASPTQD3P

FB ASPFB12P

Description Cat. No.

For Split & Load End Neutral 343L886G16 For 225A Horizontal Neutrals 343L886G13 225A Horizontal Neutral To Convert 3W to 4W ASP225HNCP 125/225A Horizontal Neutral Conversion from Service Entrance to Non-Service Entrance ASPHNCPSENOT

125/225A Horizontal Neutral to Convert from Non-Service Entrance to Service Entrance ASPHNCPSE

Description Cat. No.

9" Covers Surface ASPABX09S 9" Covers Flush ASPABX09F 18" Covers Surface ASPABX18S 18" Covers Flush ASPABX18F 64" to 76" Covers Surface ASPABX20S 64" to 76" Covers Flush ASPABX20F

Description Cat. No.

Directory Card 139C5612P3 Replacement Lock with Std. Key 569B737P1 Replacement Lock with GE75 Key 569B737P2 Additional Keys for Above Lock 569B737P5 Circuit Numbering Strips 1-48 569B806G1 Circuit Numbering Strips 49-84 569B806G2 Circuit Numbering Strips 85-126 569B806G3 Adhesive Backed Lamicoid Nameplate 3/4" x 3" 315A7190P1 Metal Directory Card Holder 139C5491G1 Directory Card Holder 139C5491P4 Delta Hi-leg Conversion Kit, to Add B-Phase Plug on AL Panels APHBL Bolt on AE/AQ Panels APHBQ NEMA 3R/12 Tamper Proof Tork Screw Kit NEMATRX 2P to 3P TQD Conv. Kit ASP2PTQD3P 2P to 3P SF Conv. Kit for horizontal subfeed ASP2PTFJ3P AD 25 to 65 kAIC Barrier kit ASP25AD65KA1 Service Entrance Kit ASPSERENT 2 wire Relay Kit ASP2WRelay Yale Lock Kit ASPYALE47 Corbin Lock Kit ASPCORBNTEU1 2-3 pole TQD Mechanical Interlock TQDFM1 AQ/AL/AE Rail Bracket ASPAQLEBKT Front Flush Adjust Kit ASPFLUSHADJ AE Front Mounting Kit 139C5720G3 AQ/AL Front Mounting Kit 139C5720G6 AD Front Mounting Kit 139C5728G9 Front Hinge to Box Mounting Kit 139C5700G6 Front Extension Mounting Kit 139C5700G11

Type Cat. No.

Blank ABEW2 Knockout ABEW2

Filler Plates Endwall Kits Field installed.

1 each, for standard 20”w x 5.81”d boxes.

Parts

Box Extensions Bolts to box with or without endwall in place. Extensions can be combined to obtain lengths greater than 18 and 24 inches.

Box Extension Covers Only 10 covers per kit

Breaker Mounting Hardware Kits For mounting breaker in existing space

Equipment Grounds

Bonding Kits

Installation & Maintenance Kit Order catalog number PROCARE. Kit includes:

(5) filler plate hardware kits

(9) bus stud nuts

(5) MLA1 filler plates

(2) 225A phase barriers

(2) feed-thru barriers

(1) 400/600A phase barrier

(50) directory cards/rating books

(50) circuit number strips (1-48)

(50) circuit number strips (43-84)

(5) standard locks & keys

(50) deadfront screws

(10) AQ/AE front hardware kits

(10) AD front hardware kits

(50) service disconnect labels

(50) main labels

AEBG

AEBGC AEIGC

AEIG

ASPGIBC

Specifications A-Series Panelboards and branch breakers meet or exceed the following standards and specifications:

• UL 50 Cabinets and Boxes

• UL 67 Panelboards

• UL 489 Circuit Breakers

• NEMA AB-1 Circuit Breakers

• NEMA PB-1 and PB-1.1 Panelboards

• US Federal Spec W-P.115B Panelboards

• US Federal Spec W-C375b Gen Circuit Breakers

Boxes

• Galvanized steel

• Blank end walls are standard; knockouts are available when specified

• Boxes furnished with provisions for ground bus as standard

Fronts

• Finished in ANSI-61 grey polyester powder coat paint.

• Equipped with corrosion-resistant Valox combination catch and lock door latch (doors over 48” high provided with 2 latches)

• Equipped with concealed hinges and trim adjusting screws

• Directory holder permanently mounted to door

Panels

• Dead front construction

• Interiors are factory assembled on rigid steel frames

• Metal gages in accordance with UL and NEMA standards

• Solderless, anti-turn main lugs suitable for copper or aluminium wires are front removable and branch straps are silver-plated copper fully rated at 100 amperes

• Main bus is aluminum with copper branch connections unless otherwise specified

• Main disconnect device is identified when supplied, and numbers are provided for branch circuits

• Interior base assemblies are Noryl and provide breaker mounting and busbar insulation

Publications

E-DET-465 Certification of Seismic Compliance

DE-42 Typical AL/AQ Panelboard Technical Information

DEH 40007 Lighting Panels Rating Labels, Wiring Diagrams and Circuit Directory

DEH 047 TED, THED, SED, SHE, SEL, SEP Circuit Breaker Mounting Instructions

DEH 059 SGH, SFL, SFP Circuit Breaker Mounting Instructions

DEH 060 SGH, SGL, SGP Circuit Breaker Mounting Instructions

DEH 061 SKH, SKL, SKP Circuit Breaker Mounting Instructions

DEH 065 TQD, THQD Circuit Breaker Mounting Instructions

GE

41 Woodford Avenue Plainville, CT 06062 1-800-431-7867 www.geindustrial.com

Information provided is subject to change without notice. Please verify all details with GE. All values are design or typical values when measured under laboratory conditions, and GE makes no warranty or guarantee, express or implied, that such performance will be obtained under end-use conditions.

©2017, General Electric Company and/or its affiliates. All rights reserved.

12.17 DE-42C

Molded Case Circuit Breakers

Application and Selection

Contents

Page

The GE Family of Molded Case Circuit Breakers

Thermal Magnetic & Solid State Trip Types

MicroVersaTrip Plus Tripping Functions

Power+ 4 Tripping Functions

Current Limiting Circuit Breakers

Mag-Break® Motor Circuit Protectors

Accessories

Application Data

Current Ratings

Interrupting Ratings

Time Current Curves

Inspection and Testing

Outline Drawings

The GE Family of Molded Case Circuit Breakers From 10-1200 Amperes

Q-Line TEY E150 F225 J600 K1200

Application Flexibility In switchboards, motor control centers and lighting, power and customized control panelboards, General Electric molded case circuit breakers are used to provide reliable circuit protection. Molded case circuit breakers in individual enclosures are also used in numerous applications.

Minimum Downtime Downtime is reduced and fuse replacement is eliminated with circuit breakers. In case of overload or short circuit, the breaker trips, opening the circuit and protecting the conductors. When normal conditions are restored, the breaker can be closed (“ON”) again.

Trip-Free Mechanism The breaker’s trip-free mechanism opens the breaker contacts under overload or short circuit conditions, even with the breaker handle held in the ON position.

Eliminates Single-Phasing Circuit breakers eliminate single-phasing. When an overload or short circuit occurs on any one conductor, a common trip bar simultaneously disconnects all three conductors of a three-phase circuit.

Easy System Upgrading With General Electric circuit breakers, the circuit can be uprated, even after the breaker has been installed.

Interchangeable trips provide a wide range of ratings within the same frame size.

Accessory Functions Application flexibility of molded case circuit breakers is enhanced by a breaker accessory line. Remote closing or opening, undervoltage protection, indication of “tripped” condition at a remote location, electrical or mechanical interlocking, automatic reclosing, and primary or sequential operation are some of the functions practical with accessories.

Space Savings Space savings can be an important factor in selecting General Electric molded case circuit breakers as equipment components. Higher rated breakers in particular, offer major space economies over fused switches.

Interrupting Ability Interrupting ratings of General Electric molded case circuit breakers are based on actual short circuit tests.

Breakers are rated for RMS symmetrical ac amperes and for maximum dc amperes.

Standards and Specifications General Electric molded case circuit breakers meet standards established by Underwriters’ Laboratories, National Electric Manufacturers Association, Federal Specifications, Institute of Electronic Engineers, National Electric Code and General Electric Company’s own high quality standards.

Rugged, Dependable Construction

Circuit Breaker Frame

• Molded case is molded from high-mechanical and high-dielectric strength engineered plastic.

• Trip indication is shown by handle position midway between ON and OFF. To reset the trip mechanism, move the handle to extreme OFF, then to ON position.

• Quick-make, quick-break, trip-free mechanism minimizes arcing during breaker operation. Contacts cannot be “teased” into position. Trip-free mechanism is independent of manual handle control. The breaker trips under short circuit or overload, even though the operating handle is held in ON position.

• Verifier “Twist-to-Trip” and “Push-to-Trip” mechanically simulates over-current tripping through actuation of linkages not operated by the ON-OFF handle. Experience has shown that thermal magnetic circuit breakers in industrial applications better maintain their original protective characteristics when regularly exercised.

• Common-trip bar assures instant disconnect of all conductors when an overload or short circuit occurs on any one conductor in the circuit, or an accessory trip device operates.

• Silver alloy contacts combine the conductive properties of silver with other elements for clean, positive electrical contacting. Pitting and burning are minimized for longer contact life.

• Arc chutes of heat-absorbing, insulating material and metal grid plates quickly “extinguish” arcs.

• UL listed lugs for copper or aluminum cable, at full frame rating. Easy access and simple, straight-in wiring.

Thermal Magnetic Trip System

• Front-adjustable magnetic trip provides instantaneous trip in event of short circuit. Any current surge above the trip setting produces a magnetic field which instantly actuates the trip mechanism and opens the circuit.

• Thermal trip provides protection against sustained overloads. A bi-metallic element reacts time-wise in inverse proportion to the current. If a circuit is overloaded, heat resulting from excessive current flow causes the bi-metal to bend, actuating the trip mechanism to open the circuit.

• Interchangeable trip units (for frames over 150 ampere rating) simplify stocking and reduce inventory requirements.

Field interchangeability assures maximum flexibility.

Electronic Trip System

• Front adjustable programming functions (Power+ 4, MicroVersaTrip Plus) provide a high degree of flexibility and convenience in making and checking settings.

• Long-time pick up indication is illuminated whenever the breaker is experiencing an overload condition. The light is extinguished by removing the overload or tripping the breaker.

• Glass epoxy printed circuit boards with epoxy conformal coating over all assembled components provide long life with error free operation.

• Switch contacts and board interconnectors provide corrosion resistance and long product life.

• Neutral current sensor connections located between the breaker lugs allow panelboard mounting of breakers without special fillers or increased panel space.

• Fault trip indicators for overload, short circuit, and ground fault are available for local indication.

Thermal Magnetic and Solid State Trip Types

Spectra RMS™ circuit breakers with digital rms-sensing electronic trip units provide many features and benefits not offered by thermal magnetic breakers (refer to GET-7002).

Thermal magnetic trip units are available in all GE molded case circuit breakers from Q Line through K frame.

Solid state trip units may be alternatively selected for J and K frame circuit breakers. Additionally, non-automatic circuit interrupters, or molded case switches, are available. These interrupters have no automatic overload or short circuit trip elements. They are used for manual switching and isolation.

Enclosure Compensated Thermal Trip: 40°C An enclosure compensated thermal trip is constructed to permit an enclosed circuit breaker in a 25°C room ambient to carry 100% of its nameplate current intermittently and 80% of its nameplate current continuously when cabled with conductor sized per the UL 489 standard (see Figure 29.1).

The thermal trip action is accomplished by a bimetallic strip. The movement of the bimetal and thus tripping is proportional to the current — high current fast response, low current slow response. This action provides a time delay which prevents service interruptions from normal inrush currents or temporary overloads. Continuous overloads will cause the bimetal to deflect sufficiently to release the latch and open the breaker contacts. However, the bimetal is also sensitive to ambient temperatures. If the room ambient is above or below 25°C, or the enclosure is warmer than normal, the breaker rating will vary inversely to the temperature: higher ambient-lower current, lower ambient-higher current. Enclosure compensation is furnished on Q-Line, TEB, TEY, TB-1, TED 277 volt and TED 480 volt circuit breakers.

Ambient Temperature Compensated Thermal Trip: 10° TO 50°C An ambient compensating or “Ambient Compensated” thermal trip is the same as an enclosure compensated trip with one notable exception. It has a reduced sensitivity to changes in ambient temperature. In an ambient compen-sating thermal trip an additional bimetal is added to the circuit breaker. This bimetal responds to breaker ambient and modifies the characteristics of the current sensing bimetal to compensate for ambient temperature changes.

Ambient compensating thermal trips are provided as standard in all 600 volt thermal-magnetic molded case circuit breakers.

Adjustable Magnetic Trip — F225, J600, K1200 and TEC, TEML, TFC, TJC, TKC, TFL, THLC-2, THLC-4, TLB4 An electromagnet which partially surrounds the bimetal is used to provide instantaneous trip in the event of a short circuit. The high current creates a strong magnetic field attracting the armature and instantaneously releasing the trip latch in the same manner as the bimetal does on overload.

For short circuit protection, the adjustable magnetic trip provides high, low and intermediate trip settings.

Solid State Trip: -20° TO +55°C Solid state MicroVersaTrip® Plus trip units meet the same standards as thermal trip units. Complete circuit breakers equipped with MicroVersaTrip Plus trip units are rated to carry 100% of their current sensor rating intermittently and 80% continuously in a 40°C breaker ambient. Some MicroVersaTrip Plus equipped breakers are rated to carry 100% continuously and are so marked.

In addition to the protection of conductors as required by codes and standards, MicroVersaTrip Plus can be set to provide protection for equipment such as motors, generators, or transformers and provide improved distribution system selectivity.

OFF

ON

BIMETAL

OVERLOAD PROTECTION

CONTACTS

OFF

ON

BIMETAL

ELECTROMAGNET

CONTACTS

ARCING

SHORT CIRCUIT PROTECTION

Figure 4.1 Operation of Thermal-Mag Trip Units

Frame Type Sensor Rating (Amps) Current Rating (Amps)

J400 150 60, 80, 100, 125, 150

J400 400 150, 200, 225, 250, 300, 400

J600 600 300, 400, 450, 500, 600

K800 800 300, 400, 500, 600, 700, 800

K1200 1200 600, 800, 1000, 1200

Molded Case Circuit Breakers

Table 5.1 Breaker Trip Types

Table 5.2 J/K Rating Plug Selection

Breaker Type Trip Type

Q-Line All Non-Interchangeable

TEY-100 TEY Non-Interchangeable

TEB Non-Interchangeable E150 TED Non-Interchangeable

THED Hi-Break Non-Interchangeable

TFJ Non-Interchangeable F225 TFK Interchangeable

THFK Hi-Break Interchangeable

TJJ Non-Interchangeable TJK Interchangeable

J600 THJK Hi-Break Interchangeable TJ4V Non-Interchangeable TJH4V Hi-Break Non-Interchangeable TJH Hi-Break MVT Plus Interchangeable (Rating Plug ① )

TKM-800 Interchangeable TKM-1200 Interchangeable

K1200 THKM Hi-Break Interchangeable TK4V Non-Interchangeable TKH Hi-Break MVT Plus Interchangeable (Rating Plug ① )

TEL, TEML② Non-Interchangeable TFL② Non-Interchangeable TJL4V Hi-I.C. Non-Interchangeable

Hi-I.C.

TJL Hi-I.C. MVT Plus Interchangeable (Rating Plug ① ) TKL4V Hi-I.C. Non-Interchangeable TKL Hi-I.C. MVT Plus Interchangeable (Rating Plug ① ) TLB-2② Non-Interchangeable TLB-4② Non-Interchangeable

THLC-1② Non-Interchangeable Current Limiting THLC-2② Non-Interchangeable

THLC-4② Non-Interchangeable

TB-1 Non-Interchangeable Tri-Break TB-4 Non-Interchangeable (fused) TB-6 Non-Interchangeable

TB-8 Non-Interchangeable

① MicroVersaTrip® Plus incorporates trip units with field replaceable rating plugs providing ease of changing ratings within frame size and sensor rating, with minimum downtime. See Table 5.2 for rating plug selection.

② Obsolete type.

Type Reverse Feed Trip Unit Type Trip Unit Ratings (Amperes) Instantaneous Type

Q-Line Yes Non-interchangeable 10, 15, 20, 25, 30, 35, 40, 45, 50, Fixed

(THQB, L, C) 60, 70, 80, 90, 100, 110① , 125①

TEY Yes Non-interchangeable 15, 20, 30, 40, 50, 60, 70, 80, Fixed 90, 100

E150 Yes Non-interchangeable 10, 15, 20, 25, 30, 35, 40, 45, 50, Fixed 60, 70, 80, 90, 110, 125, 150

TEL② Yes Non-interchangeable 15, 20, 25, 30, 35, 40, 50, 50, 60, Fixed 70, 80, 90, 100, 125, 150

THLC-1② Yes Non-interchangeable 15, 20, 30, 40, 50, 60, 70, 80, 90, Fixed 100, 125, 150

TB-1 No Non-interchangeable 15, 20, 25, 30, 35, 40, 45, 50, 60, Fixed 70, 80, 90, 100

TQD Yes Non-interchangeable 100, 125, 150, 175, 200, 225 Fixed

F225 TFJ Yes Non-interchangeable 70, 80, 90, 100, 110, 125, 150, Adjustable TFK No Interchangeable 175, 200, 225

TFL② Yes Non-interchangeable 70, 80, 90, 100, 125, 150, 175, Adjustable 200, 225

THLC-2② Yes Non-interchangeable 125, 150, 175, 200, 225 Adjustable

TJD Yes Non-interchangeable 250, 300, 350, 400 Fixed

J400 TJJ Yes Non-interchangeable 125, 150, 175, 200, 225, 250, Adjustable TJK No Interchangeable 300, 350, 400

J600 No Interchangeable 250, 300, 350, 400, 450, 500, 600 Adjustable

TLB-4② Yes Non-interchangeable 250, 300, 350, 400 Adjustable

THLC-4② Yes Non-interchangeable 250, 300, 350, 400 Adjustable

TB-4 No Non-interchangeable 125, 150, 175, 200, 225, 250, Adjustable 300, 350, 400

TB-6 No Non-interchangeable 300, 350, 400, 500, 600 Adjustable

K800 No Interchangeable 300, 350, 400, 450, 500, 600, Adjustable 700, 800

K1200 No Interchangeable 600, 700, 800, 1000, 1200 Adjustable

TB-8 No Non-interchangeable 600, 700, 800 Adjustable

① THQL only (2 pole).

② Obsolete type.

Trip Unit Ratings Molded Case Circuit Breakers Table 6.1 Trip Unit Ratings

MicroVersaTrip Plus™ Tripping Functions

MicroVersaTrip Plus is a trip unit for J and K frame circuit breakers incorporating the newest technological advances in over-current protection for improved reliability, long-life, and flexibility. Operation is fully automatic and normally no external logic or control power inputs are required. It uses digital rms sensing to accurately measure the waveshape and has an LCD display including overload, short circuit, and ground fault indicators.

Programmable Microelectronic Processor This forms the basis of the MicroVersaTrip Plus protection programmer. This miniaturization of circuitry provides the increased flexibility required to incorporate nine adjustable time-current functions, three mechanical fault indicators (local), a long-time pickup indicator (local), and zone selective interlocking. All adjustable programmer functions are automatic and self-contained. This compilation of functions provides the basis for the most flexible and useful breaker design presently available anywhere.

Specially Treated Printed Circuit Boards Each printed circuit board has a protective conformal epoxy coating to prevent moisture absorption, fungus growth, and signal leakage. All electronics are housed within a metallic enclosure designed to protect against hi-fault interruption arcs, magnetic interference, dust, and other contaminants.

Flux-Shift Trip Device A low energy, positive action tripping device which is self-powered by and controlled by the trip unit.

Current Sensor Package Three-phase current sensors are incorporated into a single package providing greater flexibility and reliability.

Molded Case Circuit Breakers

Table 8.1 MicroVersaTrip Plus Trip Unit Functions

Table 8.2 MicroVersaTrip Plus Trip Unit Function Characteristics

LI LIG LIGZ1 LIGZ2 LSI LSIG LSIGZI LSIGZ2

Long-Time Adjustable Current Setting X X X X X X X X Adjustable Long Time Delay X X X X X X X X

Adjustable Pick-Up X X X X Short-Time Adjustable Delay X X X X

I2t Switch X X X X

Adjustable Instantaneous Pick-Up X X X X X X X X

Adjustable Pick-Up X X X X X X Ground Fault Adjustable Delay X X X X X X

I2t Switch X X X X X X

Zone Interlock GF X X

GF-ST X X

Current Long-Time➂ Short-Time Adjustable Ground Fault Setting Instantaneous

Frame Sensor Rating (Multiple Delay Pick-Up Delay Pick-Up Pick-Up Delay Type (Amps) of Rating (Seconds) (Multiple of (Seconds) (Multiple of (Multiple of (Seconds)

Plug Amp) Current Rating Plug Sensor Amp

(X) Setting) (C) Amp) (X) Rating) (S)

J400 150, 400 1.5 to 10.0 2.4, 4.9, 9.8, I2T in .40➃ without I2T in .40➄

J600 600 20 at 600% short-time in .50 to 1.00 of current 1.5 to 9.0 steps of 0.5 0.2 to 0.6

K800 800 in steps setting at in steps 1.5 to 15.0② in steps of .05 lower limit of .05 I2T out① with of 0.01 I2T out①

K1200 1200 of each band .10, .21, .35 short-time in .10, .21, .35 steps of 0.5

① Time delay shown at lower limit of each band. Pick-up tolerances ±10%. Ground fault pick-up not to exceed 1200 amps.

② J600 frame with 600-amp sensor for high IC 65kA rating (TJL) limited to 10X.

➂ Pick-up fixed at 1.05C.

➃ Time delay at 600% of current setting at lower limit of band.

➄ Time delay at 200% of pick-up setting at lower limit of band.

X = rating plug amps S = sensor amp rating C = current setting

Setup Mode Set points for all trip unit functions can be entered into the trip system via the 5-function key pad and LCD display.

When working in Setup Mode, the trip unit must be provided with control power from the internal battery, or the MicroVersaTrip Portable Power Pack or by loading the breaker to at least 20% of its sensor value. While still in Setup Mode, settings can be automatically scanned by depressing the VALUE key for 5 seconds.

Current Setting (Standard) The adjustable current setting determines the nominal long time current setting with a ±10% bandwidth. With a 1.0 setting the breaker will carry indefinitely without tripping the rating plug rating. Changing the setting changes the nominal current rating for the breaker.

Long-Time Delay (Standard) This long-time delay adjustment varies the time it will take the breaker to trip under sustained overload conditions. It provides the function of with-standing momentary overloads such as motor starting, welding, or other overcurrent conditions without interrupting the service.

LShort-Time Pickup (Optional) This short-time pickup adjustment controls the level of high current the breaker can carry for short periods of time without tripping. Permits downstream breakers to clear short circuit faults without tripping out the upstream protective device.

Short-Time Delay (Optional) The short-time delay adjustment is used in conjunction with the short-time pickup setting to provide a further refinement of coordination between circuit breakers. It establishes the time interval the breaker will wait before responding to the short-circuit current level selected on the short-time trip point adjustment.

Adjustable Instantaneous Pickup (Standard) The instantaneous trip point determines the level at which the breaker will trip without intentional time delay (0.025 seconds or less). This immediate interruption occurs only as a result of a severe overcurrent condition, thereby minimizing damage to the electrical system and equipment.

I2T IN

I2T OUT

Ground Fault Pickup and Ground Fault Delay (Optional) The ground fault pickup adjustment controls the level of ground fault current at which circuit interruption will occur. To comply with the National Electrical Code (NEC 230-95), no trip point exceeds 1200 amperes. The common square knee of the curve can be replaced with an I2t function to facilitate coordination with downstream devices such as thermal-magnetic breakers and fuses. The ground fault delay adjustment is used to add a pre-determined delay in time to the trip point once the ground fault pickup level has been reached. This provides tripping selec-tivity between main and feeder or other downstream breakers. The ground fault unit also includes as standard an inverse I2t ramp to substantially improve coordination with downstream protective devices such as fuses and thermal magnetic circuit breakers.

Memory Circuit Because of the highly intermittent and erratic nature of arcing ground faults, a memory circuit has been incorporated in all MicroVersaTrip Plus ground fault-sensing circuits as standard. The memory circuit integrates arcing fault current with time, essentially summing the intermittent ground current spikes. In the diagrams, it can be seen how the memory function works.

Diagram A shows a typical ground fault with half-cycles, whole cycles and multiple cycles missing, as normally occurs.

Diagram B shows trip response of a typical ground fault function, which does not include memory. The breaker never trips because the time delay circuits are reset with every missing cycle.

Diagram C shows response of MicroVersaTrip Plus ground fault circuits to the same ground fault; the circuit’s memory carries through the missing cycles and generates a trip signal after the preset time delay.

Status Indication The LCD display provides continuous information on the operating status of the circuit breaker. Under normal conditions the status screen simply displays the OK message. After a fault event occurs, the LCD display indicates the event type, the magnitude, and overcurrent target when appropriate.

Ground Fault

Trip Line

Trip Line t t t

Ground Fault without Memory

Ground Fault Response with Memory

A

B

C

OK

STATUS

FAULT

STATUSAMPS

I>

LT

Ø1

96 4

Display ModeFault Phase

Fault IndicationTrip Targets

Fault Magnitude

Zone Selective Interlocking The standard means of obtaining selectivity between main and feeder breakers is by incorporating programmers with time-coordinated trip characteristics. This consists of setting the farthest downstream breaker with a small time delay, and progressively increasing the time delay as you get closer to the main protective device. The disadvantage of this method is that the system must now endure the stress of a high current fault between the main and feeder until time-out occurs.

The Zone Selective Interlock module, Figure 11.1, receives a signal from a downstream MicroVersaTrip Plus programmer (Logic 0) which causes the module to transmit a low-level interlock signal to a MicroVersaTrip Plus programmer upstream. The interlock signal activates the LED portion of an LED-Transistor Opto-isolator in the upstream programmer causing the fixed delay band to shift from “MIN” to the programmer delay band setting.

Both the Short-Time and Ground Fault functions are capable of being inter-locked.

Zone Selective Interlocking is available for both the short-time function and the ground fault function, or the ground fault function only.

Test Jack The Test Jack located on the front of the rating plug accepts a test cable supplied with a portable, battery operated (or 120Vac) test kit separately available. The test kit will test the circuit breaker while the circuit breaker is carrying load, and provides either a trip or no trip test. The test kit will simulate a time-over current condition for the long-time, short-time and ground fault functions. It will also read trip unit switch settings and provide a report on the trip unit self-test feature.

Rating Plugs (Standard) Various rating plugs are available to fix the ampere rating equal to or lower than the sensor ampere rating as in Table 5.2.

SOURCE

ZONE 0 CB 1

ZONE 1 CB 2

ZONE 2 CB 3

ZONE 3

MOTOR

"OUTPUT" FROM PROGRAMMER

"INPUT" TO PROGRAMMER

DOWNSTREAM

CONNECTIONS

UPSTREAM

CONNECTIONS

WIRINGBUS

ZSIM

CB 4

ZSIM NO. 3

ZSIM NO. 2

ZSIM NO. 1

M V T

M V T

M V T

M V T

M V T

L1 L2

Figure 11.1 Multi-Zone Interlocking

Power+™ 4 Tripping Functions

Power+ 4 is the standard electronic trip device for GE J and K frame circuit breakers.

This trip unit is integral to the breaker and is not available separately. Operation is fully automatic and, normally, no external logic or control power inputs are required.

Protection Trip Unit The current sensor-powered solid-state logic unit incorporates rotary adjustment knobs for up to four functions. The functions available are Current Setting (standard), Instantaneous Pickup (standard) or Short-time Pickup with Fixed Instantaneous (optional), Ground Fault Delay (optional), and Ground Fault Pick Up (optional).

The Long-time Delay features four user selectable bands, and there are three short time constant delay bands with I2t in or I2t out.

Flux Shift Trip Device A low energy, positive action tripping device is automatically powered and controlled by the protection programmer.

Current Sensor Package Three phase current sensors are incorporated into a single package for maximum flexibility and reliability.

Protective Function Pickup Settings Nominal Midpoint Delay Settings Delay Curve

Long-Time (C) .5, .6, .7, .8, .9, .95, 1.0 3, 6, 8, 12, 25 seconds Fixed multiple of Sensor Rating (X) (Bands 1, 2, 3, 4) at 600% C

Short-Time 1.5, 2, 2.5, 3, 4, 5, 7, 9 .13, .26, .42 second I2t In, I2t Outmultiple of Long-Time Setting (C) (Min, Int, Max) I2t Out

Adjustable 1.5, 2, 3, 5, 7, 9, 10 No Delay N/A Instantaneous ① multiple of Sensor Rating (X)

Ground-Fault .2, .25, .3, .35, .4, .45, .5, .6 .13, .26, .42 second

I2t In, I2t Outmultiple of Sensor Rating (X) (Min, Int, Max) I2t Out

① When short-time protection is provided, instantaneous is fixed at 15X.

Table 12.1 Power+ 4 Protection Functions and Setting Values

Trip Unit Functions Suffix

None N G NG

Adjustable Current Setting X X X X

Long-Time Fixed Long-Time Pickup X X X X Fixed Long-Time Delay X X X X Long-Time Timing Light X X X X

Short-Time Adjustable Short-Time Pickup X X Fixed Short-Time Delay I2t Ramp X X

Instantaneous Adjustable Instantaneous Pickup X X Fixed Instantaneous Pickup② X X

Ground Fault ① Adjustable Group Fault Pickup - Zero Sequence X X Adjustable Ground Fault Delay X X

① For single-phase, 3-wire or 3-phase, 4-wire applications, select appropriate neutral current sensor.

② TJL4V with 500A and 600A sensors available with adjustable instantaneous only.

Table 12.2 Power+ 4 Trip Unit Selection

Current-Limiting Circuit Breakers

Note: OBSOLETE — for reference use only.

To meet increased demands for electrical service by residential, commercial, and industrial users, and to reduce system power losses and cost, larger low-impedance transformers are being installed by power companies. The result is sys-tems with higher available short circuit currents. Traditional branch circuit equipment cannot handle the fault cur-rents available in these systems which can reach 150,000 rms symmetrical amperes or more.

THLC current-limiting circuit breakers (CLB) react far more quickly to high-level short circuits than conventional breakers. In fact, the higher the short circuit current, the faster the THLC operates, because of its magnetic repulsion design.

Example: if a 150,000 RMS symmetrical ampere short circuit at 480 volts ac were to threaten your system, the THLC1 would interrupt it in just 3 milliseconds. At the same time, the THLC1 would limit peak let-through current to less than 42,000 amperes – only 13% of the destructive energy that would flow through without THLC1 protection, and a small enough current to be controlled by standard series-connected circuit breakers.

But a fast break isn’t enough; a CLB must control arc voltage quickly and efficiently, too.

GE THLC current limiting breakers force the arc into patented, U-shaped arc plates where sufficient voltage is developed to “dominate” the short circuit fast. During a 480 volt interruption, for example, the THLC1 quickly counters the driving voltage with a peak arc-voltage in the range of 800 volts – sufficient voltage to quench the short circuit without causing unwanted dielectric breakdown elsewhere down the line.

And for long, reliable life, the THLC is also equipped with special baffles to vent hot gases out of the breaker during the arc-quenching process.

The THLC current-limiting circuit breaker is designed to protect standard circuit breakers with ratings as low as 10,000 AIC on systems with…