1159 Rockridge Pump Station Replacement_Cummins OTECSE Spec Sheet.pdf

POWERCOMMAND®

OTEC TRANSFER SWITCH

POWERCOMMAND® 40-01 CONTROL | OPEN TRANSITION | 40 A-1000 A

AUTOMATIC TRANSFER SWITCH | SERVICE ENTRANCE RATED

DESCRIPTION

The OTEC series transfer switch provides the basic features typically required for primary source and generator set monitoring, generator set starting and load transfer functions for emergency standby power applications. The are suitable for use in emergency, legally required, and optional standby circuits in commercial and light industrial applications. The OTEC transfer switch features the new PowerCommand® 40 control with a comprehensive feature list to suit a wide variety of ATS applications.

FEATURES

PowerCommand® 40-01 control – A fully featured microprocessor-based control with LCD digital display and tactile-feel soft-switches for easy operation and screen navigation. Control highlights include Modbus communication, front panel PC software configuration.

Advanced features include, three phase sensing on both sources, manual restore to S1, synch check, and event logging capability. Please see the S-6560 PowerCommand® 40-01 control specification sheet for the full description, benefits and features.

Overcurrent disconnect device – Square D UL Listed 489 molded case circuit breaker.

Programmed transition – Open transition timing can be adjusted to completely disconnect the load from both sources for a programmed time period, as recommended by NEMA MG-1 for transfer of inductive loads.

Advanced transfer switch mechanism – Unique bi-directional linear actuator provides virtually frictionless constant force, straight-line transfer switch action during automatic operation.

Positive interlocking – Mechanical and electrical interlocking prevent source-to-source connection through the power or control wiring.

Main contacts – Heavy-duty silver alloy contacts used with multi-leaf arc chutes are rated for motor loads or total system load transfer. They require no routine contact maintenance. Continuous load current not to exceed 80% of switch rating and tungsten loads not to exceed 30% of switch rating.

Ease of service and access – Single-plug harness connection and compatible terminal markings simplify servicing. Access space is ample. Door-mounted controls are field-programmable; no special tools are required.

Complete product line – Cummins is a single source supplier with a wide range of equipment, accessories and services to suit virtually any backup power application.

Warranty and service - Products are backed by a comprehensive warranty and a worldwide network of distributors with factory-trained service technicians.

POWERCOMMAND® OTEC TRANSFER SWITCH SPEC SHEET

TRANSFER SWITCH MECHANISM

� A bi-directional linear motor actuator powers the transfer switch. This design provides virtually friction-free, constant force, straight-line transfer switch action with no complex gears or linkages.

� Independent break-before-make action is used for both 3-pole and 4- pole/switched neutral switches. On 4-pole/switched neutral switches, this action prevents objectionable ground currents and nuisance ground fault tripping that can result from overlapping designs.

� A mechanical interlock prevents simultaneous closing of normal and emergency contacts.

� Electrical interlocks prevent simultaneous closing signals to normal and emergency contacts and interconnection of normal and emergency sources through the control wiring.

� High pressure silver alloy contacts resist burning and pitting. Separate arcing surfaces further protect the main contacts. Contacts are mechanically held in both normal and emergency positions for reliable, quiet operation.

� Contact wear is reduced by multiple leaf arc chutes that cool and quench the arcs. Barriers separate the phases to prevent interphase flashover. A transparent protective cover allows visual inspection while inhibiting inadvertent contact with energized components.

� Switch mechanism, including contact assemblies, is UL 1008 certified to verify suitability for applications requiring high endurance switching capability for the life of the transfer switch. Withstand and closing ratings are validated using the same set of contacts, further demonstrating the robust nature of the design.

SPECIFICATIONS

Voltage rating Up to 480 V AC, 50 or 60 Hz.

Arc interruption Multiple leaf arc chutes provide dependable arc interruption.

Neutral bar A full current-rated neutral bar with lugs is standard on enclosed 3-pole transfer switches.

Auxiliary contacts Two isolated contacts (one for each source) indicating switch position are provided for customer use. Contacts are normally open, and close to indicate connection to the source. Wired to terminal block for easy access. Rated at 10 A Continuous and 250 V AC maximum.

Operating temperature -13 ˚F (-25 ˚C) to 140 ˚F (60 ˚C)

Storage temperature -40 ˚F (-40 ˚C) to 140 ˚F (60 ˚C)

Humidity Up to 95 % relative, non-condensing

Altitude Up to 10,000 ft (3,000 m) without derating

Surge withstand ratings Control tested to withstand voltage surges per EN60947-6-1.

Total transfer time (source-to-source)

Will not exceed 6 cycles at 60 Hz with normal voltage applied to the actuator and without programmed transition enabled.

Manual operation* Transfer switch mechanisms are equipped with means to manually transfer. All sources must be de-energized before manual operation is attempted.

Overcurrent disconnect device

Service entrance switches have a Square D UL 489 listed molded case circuit breaker.

1000 Amp switches also have a current transformer and integral residual ground fault protection

*See Operator Manual for further details.

TRANSITION MODES

Open delayed transition – In this transition mode the time required for the transfer switch to transfer between sources is adjustable so that the load-generated voltages decay to a safe level before connecting to an energized source. Recommended by NEMA MG-1 to prevent nuisance tripping breakers and load damage. Adjustable 0.5 secs - 10 minutes, and default 0.5 seconds.

UL 1008 WITHSTAND AND CLOSING RATINGS (WCR)

Withstand and Closing Ratings (WCR) are stated in symmetrical RMS amperes.

Frame Amperage With specific MCCB (kA at 480V)

Square-D breaker part number

Cummins part number

Trip unit

A (3-pole only)

HGM36040 0320-2346-75

Standard Thermal Magnetic

70 HGM36070 0320-2346-74

100 HGM36100 A035E003

125 HGM36125 0320-2346-73

B 150, 200, 225, 250 65 LJM36250CU31X A046F867 Micrologic 3.3 (LI)

C 300, 400, 600 65 PJM36060U31C 0320-2410-02 Micrologic 3.0 (LI)

D 800 65 RJF36080U31A A058R115 Micrologic 3.0A (LI)

1000 65 RJF36100U44A 0320-2563-01 Micrologic 6.0A (LSIG)

Open in-phase translation – Initiates open transition transfer when in-phase monitor senses both sources are in phase (voltage, phase and frequency). Operates in a break-before-make sequence. Includes ability to enable programmed transition as a backup. The module waits indefinitely for synchronization unless the ‘Return to programmed transition’ function is active in which case after 2 minutes it performs a programmed delayed transfer

TRANSFER SWITCH LUG CAPACITIES

Frame Amperage rating (A)

Emergency and load power cables

Emergency and load neutral cables

Service power cables Service neutral

Cables per phase

Cable size Number of Cables

Cable size Cables per phase

Cable size Number of Cables

Cable size

A 40, 70, 100, 125

#12 AWG-2/0

CU/AL Emerg

#14 AWG-2/0

CU/AL Load

#14 AWG-2/0

CU/AL

#14 AWG-3/0

CU/AL

#14 AWG-

2/0 CU/AL

B 150, 200, 225, 250

#6 AWG-400

MCM CU/AL

#6 AWG-400

MCM CU/AL

#2 OWG-600

MCM CU or

#2 AWG-500

MCM AL

#6 AWG-

400 MCM

CU/AL

C 300, 400, 250-500

MCM CU/AL

250-500

MCM CU/AL

3/0-500

MCM CU/AL

250-500

MCM

CU/AL

D 800, 1000 4 250-500

MCM CU/AL

250-500

MCM CU/AL

#2 AWG-600

MCM CU/AL

250-500

MCM

CU/AL

*All lugs 90°C rated and accept copper or aluminum wire unless indicated otherwise.

Refer to the latest NFPA 70 Article 310 - Conductors for general wiring for the ampacity calculations.

ENCLOSURE

The transfer switch and control are wall-mounted in a key-locking enclosure. Wire bend space complies with 2017 NEC.

OTEC SERVICE ENTRANCE DIMENSIONS – TRANSFER SWITCH IN UL TYPE 1 ENCLOSURE

Frame Amperage rating (A) Height Width Depth Weight in mm in mm in mm lb kg

A 40, 70, 100, 125, 3-pole 45.8 1164 32 814 16.3 413 300 136

B 150, 200, 225, 250 73.6 1869 32.3 820 19.7 499 500 227

C 300, 400, 600 74.5 1892 34.4 873 20.1 510.4 520 236

D 800, 1000 90 2286 39 991 26.3 667 920 417

OTEC NON-SERVICE ENTRANCE DIMENSIONS – TRANSFER SWITCH IN UL TYPE 3R,

OR 12 ENCLOSURE

Frame Amperage rating (A) Height Width Depth Weight in mm in mm in mm lb kg

A 40, 70, 100, 125, 3-pole 45.8 1164 32 814 16.3 413 340 154

B 150, 200, 225, 250 73.6 1869 32.3 820 19.7 499 580 263

C 300, 400, 600 74.5 1892 34.4 873 20.1 510.4 600 272

D 800, 1000 90 2286 39 991 26.3 667 920 417

OTEC DRAWING PART NUMBERS

Outline Drawing

Frame Amperage rating (A) Type 1, 3R, or 12

A 40, 70, 100, 125 (3-pole)

A065S433

B 150, 200, 225, 250 A065S434

C 300, 400, 600 A065S435

D 800, 1000 A065S436

WIRING DIAGRAM PART NUMBERS

Wiring Diagram

Frame Amperage rating (A) Utility to Genset (120 – 480 V)

Interconnection

A 40, 70, 100, 125 (3-pole) A065K034

A065H780 B 150, 200, 225, 250

A065H781C 300, 400, 600

D 800, 1000

ENCLOSURE ACCESS FOR CABLE INSTALLATION AND MAINTENANCE

All frames allow for top, side, and bottom cable entry. NEC Requires Minimum 36” Front Access. Additional front clearance is needed to remove the mechanism. Refer to the outline drawing.

SUBMITTAL DETAIL

The Product codes below have been shortened for brevity. In long form, each four-letter product code will be preceded with a OTECSEX, where X = A, B, C, D or E. For example, OTECSEB_A045-7

Model

� 40, 70, 100, 125 A, (3-pole)

� 150, 200, 225, 250 A

� 300, 400, 600 A

� 800, 1000 A

Poles

� A028 Poles – 3 (solid neutral)

� A029 Poles – 4 (switched neutral) (not available for 40-125 A)

Application

� A035 Utility-to-genset

Frequency

� A044 60 Hz

� A045 50 Hz

Phase

� A041 single phase, 2-wire or 3-wire

� A042 three phase, 3-wire or 4-wire

Voltage ratings

� R020 120V

� R038 190V

� R021 208V

� R022 220V

� R023 240V

� R024 380V

� R025 416V

� R035 440 V

� R026 480 V

Enclosure

� B001 Type 1: Indoor use, provides some protection against dirt (similar to IEC type IP30)

� B002 Type 3R: Intended for outdoor use, provides some protection from dirt, rain and snow (similar to IEC type IP34)

� B010 Type 12: Indoor use, some protection from dust (similar to IEC type IP61).

Standards

� S043 Listing-UL 1008 certification

� A080 IBC seismic certification

Control voltage

� M033 12V, Genset starting voltage

� M034 24V, Genset starting voltage

Control options

� M032 Elevator signal relay

� M081 MODBUS RS485 Communication module

Auxiliary relays Relays are UL Listed, and factory installed. All relays provide (2) normally closed isolated contacts rated 10A @ 600 VAC. Relay terminals accept (1) 18 gauge to (2) 12-gauge wires per terminal.

� L101 24 VDC coil - installed, not wired (for customer use).

� L102 24 VDC coil - emergency position – relay energized when switch is in source 2 (emergency) position.

� L103 24 VDC coil - normal position - relay energized when switch is in source 1 (normal) position

� L201 12 VDC coil installed, not wired (for customer use)

� L202 12 VDC coil - emergency position – relay energized when switch is in source 2 (emergency) position

� L203 12 VDC coil - normal position - relay energized when switch is in source 1 (normal) position

Warranty

� G004 2-years, comprehensive

� G007 5-years, comprehensive

� G014 3-years, comprehensive

� G015 10-years, comprehensive

Shipping

� A051 Packing - export box (800 – 1000 A)

Request for quotation (RFQ)

� Z555 Nonconfigurable spec [ETO]

Accessories Refer to AC-170 Accessories specification sheet for more details.

� 0332-3302* Terminal block - 30 points (not wired).

� A065L320 Control panel cover guard, factory installed

� A065L321 Control panel cover guard, field installed

CODES AND STANDARDS

All switches are UL 1008 Listed with UL 50E Type Rated cabinets and UL Listed CU-AL terminals.

ISO® All switches are designed and manufactured in facilities certified to ISO 9001.

All switches comply with NEMA ICS 10. IBC® All switches are certified to IBC 2018.

All switches comply with NFPA 70, 99 and 110 (Level 1).

EMC

Display controllers meet the following Electromagnetic Compatibility (EMC) standards:

� EN 61000-6-2 Generic Immunity Standard for the Industrial Environment.

� EN 61000-6-4 Generic Emission Standard for the Industrial Environment.

All switches comply with IEEE 446 Recommended Practice for Emergency and Standby Power Systems.

NEC®

Suitable for use in emergency, legally required and Standby and Critical Operations Power Systems (COPS) applications per NEC 700, 701, 702 and 708.

For more information, please contact your local Cummins distributor or visit cummins.com Our energy working for you.™ NAS-6542-EN PD00000511 Rev. 11/21 ©2021 Cummins Inc.

All rights reserved. Cummins is a registered trademark of Cummins Inc. PowerCommand, AmpSentry, InPower and “Our energy working for you.” are trademarks of Cummins Inc. Other company, product, or service names may be trademarks or service marks of others. Specifications are subject to change without notice.