J A_-_Appendix_A_-_technical_analysis_(002).pdf

Appendix A

WX911XK-16-R-0009, Gate Automation Compensating Works

RFI Responses – Technical Analysis

A sources sought was issued to determine the viability of sole sourcing a new Rockwell Automation MCC for the subject project. Two responses were given the government’s RFI. A response from Siemens and a response from Eaton. Below is a summary of the technical analyses performed on such responses.

Siemens Technical Analysis

The technical analysis of Siemen’s response determined Siemens is technically capable of providing the product needed by the government. However, their documentation also showed the task would be accomplished using third party products and additional charges would be incurred for custom programming and system integration. The RFI is attached with mark-ups indicating such items. The intent to sole source is intended to provide the government with a product that does not require the additional costs and burdens associated with third party equipment, custom programming, and independent equipment management software packages.

Eaton Technical Analysis

The technical analysis of Eaton’s response determined Eaton is technically capable of providing the product needed by the government. However, further could not validate Eaton is capable of communicating with the existing industrial control system without custom programming or third party apparatuses. Attached is a marked-up document of Eaton’s RFI response showing some of these items. Again, the intent to sole source is intended to provide the government with a product that does not require the additional costs and burdens associated with third party equipment, custom programming, and independent equipment management software packages.

Andrei Sawruk, PE

Eaton Corporation 8609 Six Forks Road Raleigh, NC, 27615-2966

April 8, 2016

USACE District, Detroit 477 Michigan Avenue Detroit, Michigan 48226 LRE-Quotes@usace.army.mi Dean.Liguori@usace.army.mil robert.w.austin@usace.army.mil

Re: FY16 Gate Automation - Soo Compensating Works - Brand Name for Motor

Control Centers – Sol. #: W911XK-16-R-0009 – Agency: Department of the Army

– Office: U.S. Army Corps of Engineer – Location: USACE District, Detroit

Dear Mr. Dean Liguori

In response to your “Special Notice”, Eaton is providing detailed information in regards to our Motor Control Center design that is “equal to” or “better than” the electrical specification that has been provided for the replacement and modernization of electrical controls and monitoring equipment at the Lake Superior Regulatory Structure located on the St. Mary's River in Sault Ste. Marie, Michigan.

Since Eaton is a large business, attached is the commercial subcontracting plan consistent with the intent and requirements of the FAR regarding the subcontracting of Small, Hub-Zone Small, Small Disadvantaged, Woman-Owned Small, Veteran-Owned Small, and Service- Disabled Veteran-Owned Small Business Concerns.

Respectfully, Jim Dankowski National Business Development Manager/Federal Systems & Solutions Eaton Corporation

The following is a review of each section of the specification and Eaton’s response:

Motor Control Center Specifications:

1. RATINGS

1.A The MCC shall be rated 600V-class Low Voltage Motor Control Centers (MCCs) for use on alternating current power systems.

Eaton Response: This is a standard rating for Eaton Low Voltage Motor Control Center’s equipment.

1.B The MCC horizontal and vertical power bus bracing shall be rated to meet or exceed the available fault current, but shall not be less than 42,000A RMS symmetrical.

Eaton Response: The standard rating for Eaton’s Low Voltage Motor Control Center equipment is 65,000A RMS symmetrical which is a higher structural bracing for fault current.

1.C All MCC units shall have a full rated for 65,000A RMS short circuit current.

Eaton Response: The standard rating for Eaton Low Voltage Motor Control Centers.

1.D All circuit breakers used in the motor control center shall have full-rated short-circuit interrupting ratings based on the applied MCC voltage.

Eaton Response: This standard design for circuit breakers used in Eaton Low Voltage Motor Control Centers.

1.E The MCC shall provide Type 2 Accessibility as defined by IEEE C37.20.7 ‘IEEE Guide for Testing Metal-enclosed Switchgear Rated up to 38 kV for Internal Arcing Faults’.

Eaton Response: Eaton has a standard design for Type 2 Accessibility as defined by IEEE C37.20.7 ‘IEEE Guide for Testing Metal-enclosed Switchgear Rated up to 38 kV for Internal Arcing Faults’, Freedom arc-resistant MCC. This includes:

o Tested and verified per IEEE guideline C37.20.7 and CSA standard 22.2 No. 0.22-11 o Type 2 accessibility rating o No exhaust plenums or roof flaps required, meaning no additional clearance is required above the MCC o Insulated horizontal and vertical buses aid in arc prevention and prevent further propagation of the arc fault throughout the entire MCC. Automatic vertical bus shutters are included o Usage of 12ga steel on doors, side sheets, and back sheets increase the structural integrity and aid in the containment of dangerous arc blast energy o Robust door hinges and latches serve to help ensure doors remain closed during an arc flash event o Communications available on all major fieldbus protocols, including Modbus, Modbus TCP, Ethernet/IP, DeviceNet, and Profibus

Eaton Response: Attached is a Product Description that identifies the features of Eaton’s are Freedom arc-resistant MCC.

h7sa9aes Polygon This response is seen several times in this document. The attachment at the end of this document is a brochure and has some continuity for this comment. However, the brochure does NOT indicate if Eaton equipment can be operated, controlled, programmed, and maintained with our existing Rockwell SCADA system.

2. STANDARDS

2.A The MCC shall meet or exceed the requirements within the following standards for MCCs.

1. NEMA ICS 18 - Industrial Control and Systems: Motor Control Centers

2. UL 845 - UL Standard for Safety for Motor Control Centers NOTE: UL 845 is a harmonized standard consisting of:

a) Underwriters Laboratories Inc. (UL) UL 845

b) Canadian Standards Association (CSA) C22.2 No. 254-05

c) Association of Standardization and Certification (ANCE) NMX-J-353-

ANCE-2006

3. NFPA 70 - National Electrical Code

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC.

2.B The MCC shall be designed, manufactured, and tested in facilities registered to ISO 9001.

Eaton Response: Eaton Low Voltage Motor Control Centers manufacturing facilities are a ISO 9001 registered for the design, manufacture, and testing of MCCs..

2.C Arc Resistant or Arc Containing Low Voltage MCCs shall be tested, rated, and labeled in accordance with the requirements of IEEE C37.20.7 ‘IEEE Guide for Testing Metal-enclosed Switchgear Rated up to 38 kV for Internal Arcing Faults’.

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC.

Eaton Response: Attached is Eaton’s Freedom arc-resistant MCC specification.

2.D The manufacturer of the MCC shall also be the manufacturer of the across-the-line motor starters, across-the-line contactors, solid-state reduced voltage starters, and variable frequency drives. The use of third-party supply and assembly for these components in the motor control center is not acceptable and will be rejected.

2.E Components with communication infrastructure shall be certified by ODVA.

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC.

Eaton Response: Attached is Eaton’s Freedom arc-resistant MCC specification.

3. QUALITY ASSURANCE

3.A The manufacturer of the MCC shall have a minimum of 20-years’ experience.

Eaton Response: Eaton’s electrical business and Westinghouse® introduced the low voltage motor control center (MCC) assembly, enabling the group mounting of low voltage (600V class) electrical controls back in 1935. Below is a table that demonstrates the history of Eaton’s experience and designs since 1935.

Eaton Response: Attached is a description of Eaton capabilities to support our designs since 1935. This support allows easy upgrades to existing equipment and keeps maintenance cost at a minimum.

3.B The manufacturer shall have ISO 9001 registered facilities for the design, manufacture, and testing of MCCs.

Eaton Response: Eaton Low Voltage Motor Control Centers manufacturing facilities are a ISO 9001 registered for the design, manufacture, and testing of MCCs..

3.C MCC sections and individual MCC units shall be designed and manufactured in accordance with UL 845 requirements.

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC.

3.D MCC sections and individual MCC units shall be UL listed, where possible.

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC.

4. DELIVERY, STORAGE, AND HANDLING

4.A MCCs are to be shipped with external lifting angles at the top and running continuously for each shipping split. Lifting eyelets are not acceptable.

Eaton Response: This standard instruction for receiving and installation for Eaton Low Voltage Motor Control Centers.

Handling: The following guidelines are provided to help avoid personal injury and equipment damage during handling, and to facilitate moving the motor control center at the job site.

Handle the motor control center with care to avoid damage to components and to the enclosure or its paint finish.

Keep the motor control center in an upright position.

Ensure that the moving means has the capacity to handle the weight of the motor control center.

The control center should remain secured to the shipping skid until the motor control center is in its final location.

Exercise care during any movement and placement operations to prevent falling or in intentional rolling or tipping.

Lifting angles for handling by overhead crane are bolted to the top of each shipping section. Handling by overhead crane is preferable, but when crane facilities are not available, the motor control center can be positioned with a fork-lift truck or by using rollers under the shipping skid.

Overhead Crane:

1. See Figure 3 for recommended lifting configuration.

2. Select or adjust the rigging lengths to compensate for any unequal weight distribution, and to maintain the motor control center in an upright position.

3. To reduce tension on the rigging and the compressive load on the lifting angles, do not allow the angle between the lifting cables and vertical to exceed 45 degrees. Use slings with safety hooks or shackles. Do not pass ropes or cables through lifting angle holes.

4. After removing the lifting angles, replace the mounting hardware to prevent the entrance of dirt, etc.

Fork-lift truck: Motor control centers are normally top and front heavy. Balance the load carefully, and steady, as necessary, while moving. Always use a safety strap when handling with a fork-lift.

Rollers: Rod or pipe rollers, with the aid of pinch bars, provide a simple method of moving the motor control center on one floor level, if there is no significant incline.

Roll the motor control center slowly, and steady the load to prevent tipping.

5. ENVIRONMENTAL REQUIREMENTS:

5.A The MCC enclosure rating shall be appropriate for the environment where the MCC is to be located.

Eaton Response: Depending on the environment Eaton offers the following types of enclosure in accordance with NEMA standards: Type 1A with gasket doors, Type 12 dust-tight and drip-proof and Type 3R non-walk-in.

6. ENCLOSURE

6.A The MCC enclosure shall be NEMA Type 12.

Eaton Response: This standard design for Eaton Low Voltage Motor Control

6.B Each section shall be equipped with two full-metal side sheets to isolate each vertical section and to help reduce the likelihood of fault propagation between sections.

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC.

6.C All interior and exterior surfaces shall be painted ANSI 49 medium-light gray. The vertical wire-ways and unit back plates shall be painted high-visibility gloss white.

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC.

6.D All unpainted parts shall be plated for corrosion resistance.

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

6.E Removable closing plates on each end of the MCC shall cover all horizontal bus and horizontal wire-way openings.

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC. Insulating sheets shall be provided on the inside of end closing plates for horizontal bus openings to help prevent burn-through of the end closing plate in the event that an internal arcing fault occurs in the horizontal bus compartment.

Eaton Response: Eaton does not utilize insulating sheets as these are typically adhesive mounted solution and insulating sheets may not provide enough through-air clearance to aid over time. (i.e. dust build up). Eaton provides 4” end sections at each end of the lineup to provide this additional through-air clearance requirement.

7. STRUCTURE

7.A The MCC shall be of dead front construction and shall consist of one or more vertical sections bolted together to form a rigid, free-standing assembly. The systems shall be designed to allow for the addition of future sections at either end and to permit the interchanging of units.

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC.

7.B Vertical sections shall be rigid, free-standing structures.

1. Vertical sections shall have internal mounting angles running continuously within the shipping block

2. An external mounting channel that is required to maintain structure integrity is not acceptable

3. Vertical sections shall be 90 in. high, not more than 20 in. deep and not more than 20 in. Wide, except where larger dimensions are required

4. Vertical sections shall be provided with a removable steel lifting angle on all shipping blocks. The angle shall run the length of the shipping block

5. Lifting eyes are not acceptable

6. Each standard section shall be capable of being subdivided into 12 usable, unit spaces

7. Two unit spaces shall constitute one space factor and shall be 13 in. in height

8. One unit space shall constitute one-half space factor and shall be 6.5 in. in height

7.C. Horizontal wire-ways.

1. Horizontal wire-ways shall be located at the top and bottom of the MCC

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC.

2. Horizontal wire-ways shall be 6 in. in height and extend the full depth of the vertical section to allow maximum flexibility in locating conduit for MCC feeds and loads. Pull-boxes to extend the height of the top horizontal wire-way by 12

in. shall be provided

Eaton Response: Eaton is 9” standard top and bottom – More room to pull cable for installation

3. Horizontal wire-ways shall be continuous across the length of the MCC, except where access needs to be denied due to electrical isolation requirements

Eaton Response This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

4. The horizontal wire-ways shall be isolated from the power bus

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

5. The horizontal wire-ways shall have removable covers held in place by captive screws

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

7.D. Provide a full height vertical wire-way, independent of the plug-in units, in each standard vertical section.

1. The vertical wire-way shall be isolated from the vertical and horizontal buses

2. The vertical wire-way shall be covered with a hinged and secured door

3. Wire-way tie bars shall be provided

4. Isolation between the wire-way and units shall be provided

5. Vertical wire-way doors shall be provided with arc resistant latches to help keep the door latched in the event that an internal arcing fault occurs

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

8. BUS BARS

8.A. Horizontal Power Bus.

1. The horizontal bus material shall be copper with tin plating

2. The horizontal bus shall be supported, braced and isolated from the vertical bus with a high strength, non-conductive, non-tracking, glass polyester material

3. For standard sections the horizontal bus shall be continuous within each shipping block and shall be braced within each section

4. Horizontal bus splices shall have at least two bolts on each side

Centers and specifically, the Freedom arc-resistant MCC

8.B. Vertical Bus.

1. The vertical bus material shall be copper with tin plating

2. The vertical bus shall attach to the horizontal bus with at least two bolts

3. The vertical bus shall be continuously braced by a high strength, nonconductive, non- tracking, glass-filled polyester material and isolated from the unit spaces by a non- conductive, polycarbonate molded cover

4. The vertical bus shall be isolated from the horizontal power bus except where necessary to connect the vertical power bus to the horizontal power bus

5. Automatic shutters shall cover plug-in stab openings when units are removed

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

8.C. Ground Bus.

1. Provide a ground bus system consisting of a horizontal ground bus connected to vertical ground buses mounted in each section

2. Provide an tin-plated copper 0.25 x 2 in. horizontal ground bus mounted in the bottom of the MCC

3. Provide a pressure-type mechanical lug mounted on the ground bus in the incoming line section

4. Provide a unit ground stab on all unit inserts. The ground stab shall establish unit insert grounding to the vertical ground bus before the plug-in power stabs engage the power bus. The grounding shall be maintained until after the plugin power stabs are disengaged

5. Provide a copper vertical-unit load ground bus in each section that can accommodate plug-in units

6. Provide a unit load connector on all units that require load wire connections. The load connector shall provide a termination point for the load ground conductor at the unit

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

9. ETHERNET/IP COMMUNICATION

9.A. The MCC shall have Ethernet wiring incorporated into its design.

1. The MCC shall have factory installed industrial Ethernet cabling incorporated throughout the vertical section across the entire lineup

2. Each motor starter, electronic overload relay, power monitor, AC drive, and soft starter unit in the MCC shall be supplied with a means to communicate via EtherNet/IP network.

3. Plug-in units should be able to move around without impacting the network

4. Maintenance activities should be able to be performed without impacting the network

9.B. Industrial Ethernet Switch.

1. The MCC shall have a managed industrial Ethernet switch mounted in the top or bottom horizontal wire-way or in fixed mounted units within the lineup

Eaton Response: Eaton provides standard Ethernet cables accessible in the vertical wire-ways from units to the Ethernet switch(es). This 600V cable allows customers access (i.e. no barriers) in the event of a cable failure without having to disassemble the equipment. Eaton supports the following protocols: Ethernet/IP, DeviceNet, Modbus TCP, Profibus & Modbus RTU. More capability to support whatever network need/goal is sought. With this, Eaton can support power/feeder monitoring/networks in switchgear and other distribution equipment in addition to supporting networks for control equipment. Or, if desired establish a common backbone to support both on one protocol.

2. The managed industrial Ethernet switch shall deliver optimal network security, network resiliency (if needed), and flexibility. The functionality should include port based control/prioritization, switch-level ring support, VLAN segmentation, and other Layer-2 switch features.

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

9.C. Industrial Ethernet Cabling.

1. Industrial Ethernet Cable Ratings

a. The industrial Ethernet cable shall be 600V UL Category 5e PLTC rated

b. The use of a 300V rated cable is not acceptable

2. Layout

a. The industrial Ethernet cable shall connect each switch to one another in a ring topology

b. The industrial Ethernet cable through the MCC section shall be routed from the top or bottom horizontal wire-ways. To prevent accidental mechanical damage during MCC installation, the cable shall be located behind barriers to isolate the cable from the unit space and wire-ways

c. Up to eight (8) Ethernet adapters/ports that meet the following criteria shall be provided:

i. In each vertical wire-way of standard sections to simplify installation, relocation and addition of plug-in units

ii. Each Ethernet adapter in the vertical wire-way shall be connected to a port on the industrial Ethernet switch by using a 600V – UL rated category 5e industrial Ethernet cable

d. The EtherNet/IP device within each unit shall be factory connected to the industrial Ethernet switch directly by using a 600V-rated Ethernet cable

3. Power Supplies.

a. Power supplies shall provide 24V DC for the devices that require it

b. he MCC manufacturer shall check the user’s design to ensure that adequate power supplies have been specified to conform with network requirements

c. Power supply output shall be rated 8 A, 24V DC

d. Power supplies unit shall be provided with a buffer module to provide a minimum of 500 ms ride-through at full load

e. Up to four (4) 24V DC adapters shall be provided:

i. In each vertical wire-ways of standard sections to simplify installation, relocation and addition of plug-in units

ii. Each 24V DC adapter in the vertical wire-way shall be connected to the power supply

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

9.D. EtherNet/IP Interface for Motor Starter Units.

1. Motor starter units shall have an electronic overload relay that incorporates the following features:

a. Built-in EtherNet/IP communication

b. Overload relay powered by 24VDC

c. LEDs for status indication

d. Test/Reset button

e. Selectable trip of NEMA Class 5 to 30. Unless indicated, the trip class shall be set for NEMA Class 20 operation

f. Up to six (6) inputs and three (3) outputs of direct I/O. Additional I/O can be provided with an add-on module to the overload relay. Input voltage shall match the overload relay power voltage

g. Protective functions

i. Functions shall provide a programmable trip level, warning level, time delay, and inhibit window

ii. Protective functions shall include Thermal overload, Phase loss, Stall, Jam, Underload, Current imbalance, Remote trip, and PTC thermistor input

iii. Ground fault protection is required

a) If ground fault protection is required, the protection range shall be 20mA to 5A.

iv. PTC Thermistor input is required

v. Voltage protection is required

a) Input fusing shall not be used on NEMA 3 and smaller starters

h. Current monitoring functions shall include phase current, average current, full load current, current imbalance percent, percent thermal capacity utilized, and ground fault current (if required)

i. Voltage, energy, and frequency measuring capabilities shall be included when voltage protection is required

j. Diagnostic information shall include device status, warning status, time to reset, trip status, time to overload trip, and history of last five trips

k. Preventive maintenance information shall include Allowable starts per hour, required Time between starts, Starts counter, Starts available, Time until next start, total operating hours, and elapsed operating time

l. Overload relay shall include an on-board logic processor to allow basic logic to be performed within the overload relay based on network data and the status of the inputs to the overload relay

m. The overload relay shall support the following CIP messaging types:

Polled I/O messaging, Change-of-state/cyclic messaging, Explicit messaging, Group 4 offline node recovery messaging, and Unconnected Message Manager (UCMM)

n. The overload relay shall provide the following functions to minimize network configuration time: Full parameter object support, Configuration consistency value, and Add-on Profile

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

9.E. EtherNet/IP Interface for Variable Frequency AC Drives and Solid-State Reduced Voltage Motor Controllers.

1. The EtherNet/IP communication interface shall be supplied to allow for communication between the solid-state component and the Ethernet network

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

9.F. Programming and Testing.

1. The MCC manufacturer shall load the IP Address and Subnet Mask into each unit

2. The MCC manufacturer shall test the MCC to ensure that each unit communicates properly prior to shipment

3. Each unit shall have a label showing the IP Address for the devices within it

4. The MCC manufacturer shall provide a disk containing applicable electronic data sheet (EDS) files for the EtherNet/IP devices

5. The IP Address shall not be visible on the unit Nameplate for any units containing an EtherNet/IP enabled device

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

10. DEVICENET COMMUNICATION

10.A. The MCC shall have DeviceNet wiring incorporated into its design.

1. The MCC shall have DeviceNet cabling incorporated throughout the vertical section

2. Each motor starter, electronic overload relay, AC drive, and soft starter unit in the MCC shall be supplied with a means to communicate via the DeviceNet network

Each breaker shall be capable of being monitored and controlled for Open/Close/Trip via DeviceNet communication.

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

10.B. DeviceNet Cabling.

1. DeviceNet Cable Ratings

a. The DeviceNet cable shall be in compliance with Article 300.3(C)(1) of the

National Electrical Code,

b. The insulating rating shall be equal to at least the maximum circuit voltage applied to any conductor within the enclosure or raceway

c. No special separation, barriers, or internal conduit shall be required for the

DeviceNet conductors

d. The trunk line cable shall be flat cable rated 8 A, 600V, Class I

e. The drop cable used to connect a unit to a DeviceNet port in the vertical wire-way shall be round cable rated 8 A, 600V, Class I

f. The use of a Class II network is not acceptable

2. Layout

a. A DeviceNet trunk line shall be routed through the MCC lineup. To prevent accidental mechanical damage during MCC installation, the trunk line shall be located behind barriers to isolate the trunk line fromthe unit space and wire-ways

b. Six DeviceNet ports shall be provided in the rear of each vertical wire-way of standard sections to simplify installation, relocation, and addition of plug-in units

c. Dual port connectors shall be provided when more than six DeviceNet unit connections are required in an MCC section h7sa9aes Polygon

d. The DeviceNet device within each unit shall be factory connected to a DeviceNet port

3. Power Supplies

a. Power supplies shall be ODVA approved for the DeviceNet network

b. The power supply shall provide 24V DC for the DeviceNet system and shall be rated no less than 8 A

c. Power supplies for the MCC DeviceNet system shall be supplied as a separate plug-in units

d. The MCC manufacturer shall check the user’s design to ensure that adequate power supplies have been specified to conform with DeviceNet requirements

e. Power supply output shall be rated 8 A, 24V DC

f. Power supplies unit shall be provided with a buffer module to provide a minimum of 500 ms ride-through at full load

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

10.C DeviceNet Interface for Motor Starter Units.

1. Motor starter units shall have an electronic overload relay that incorporates the following features:

a. Built-in DeviceNet communication

b. LEDs for status indication

c. Test/Reset button

d. Selectable trip of NEMA Class 5 to 30. Unless indicated, the trip class shall be set for NEMA Class 20 operation

e. Four inputs and two outputs.

f. Protective functions

i. Functions shall provide a programmable trip level, warning level, time delay, and inhibit window

ii. Protective functions shall include Thermal overload, Phase loss, Stall, Jam, Underload, Current imbalance, Remote trip, and PTC thermistor input

iii. Ground fault protection is required If ground fault protection is required, protection range shall be 1 A to 5 A for NEMA Size 3 and smaller starters, and 20 mA to 5 A for NEMA Size 4 and larger starters

g. Current monitoring functions shall include phase current, average current, full load current, current imbalance percent, percent thermal capacity utilized, and ground fault current (if required)

h. Voltage, energy, and frequency measuring capabilities shall be included

i. Diagnostic information shall include device status, warning status, time to reset, trip status, time to overload trip, and history of last five trips

j. Preventative maintenance information shall include Allowable starts per hour, required Time between starts, Starts counter, Starts available, Time until next start, total operating hours, and elapsed operating time

k. Overload relay shall include an on-board logic processor to allow basic logic to be performed within the overload relay based on network data and the status of the inputs to the overload relay

l. The overload relay shall support the following DeviceNet messaging types:

Polled I/O messaging, Change-of-state/cyclic messaging, Explicit messaging, Group 4 off- line node recovery messaging, and Unconnected Message Manager (UCMM)

m. The overload relay shall provide the following functions to minimize network configuration time: Full parameter object support, Auto-baud rate identification, Configuration consistency value, and Automatic Device Replacement (ADR)

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

10.D. DeviceNet Interface for Variable Frequency AC Drives and Solid-state Reduced Voltage Motor Controllers.

1. The DeviceNet communication interface shall be supplied to allow for communication between the solid-state component and the DeviceNet system

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

10.E. DeviceNet Interface for Other Units.

1. Provide a DeviceNet interface for other units

2. The DeviceNet interface shall have four inputs and two outputs

3. The DeviceNet interface shall include an on-board logic processor to allow basic logic to be performed within the interface based on network data and the status of the inputs to the overload relay

4. The DeviceNet interface shall be Allen-Bradley Bulletin 100-DNY ‘DeviceNet Starter Auxiliary (DSA) Module’ or approved equal

10.F. Programming and Testing.

1. MCC manufacturer shall load the DeviceNet MAC ID number (node address) into each unit

2. DeviceNet network shall be designed and programmed for use at 250 kB or 500 kB Baud rate

3. MCC manufacturer shall test the MCC to ensure that each unit communicates properly prior to shipment

4. Each DeviceNet device shall have a label showing the unit location, node address, and communication rate

5. MCC manufacturer shall provide a disk containing applicable electronic data sheet (EDS) files for the DeviceNet devices

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

11. UNIT INFORMATION

11.A. The minimum compartment height shall be 6.5 in. and this shall be considered one-half space factor.

Eaton Response: This standard design for Eaton Low Voltage Motor Control

11.B. NEMA Size 5 FVNR starters and below shall be provided as plug-in units.

Eaton Response: AB/Rockwell has max stab ratings at 225A. Size 5 FVNRs may require a 250/400A breaker disconnect with drawable – Eaton can provide up to 400A disconnect while still maintaining plug in design. More ampacity at plug in capable units

11.C. Plug-in units.

1. Plug-in units shall consist of a unit assembly, unit support pan, and unit door

Assembly

2. Units shall be supplied with removable doors. The unit doors shall be fastened to the structure so that the doors can be closed when the unit is removed

3. A unit support pan shall be provided for support and guiding units. Unit support pans shall remain in the structure when units are removed to provide isolation between units

4. A service position shall be provided for plug-in units that allows for the unit to be supported, but disengaged from the bus. The unit shall be capable of being padlocked in the service position. This position is to be used to isolate a unit from the bus to allow service to be performed on the connected load equipment

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

11.D. Power Stabs.

1. Unit stabs for engaging the power bus shall be tin-plated copper and provided with stainless back-up springs to provide and maintain a high pressure 4-point connection to the vertical bus

2. Wiring from the unit disconnecting means to the plug-in stabs shall not be exposed on the rear of the unit. A separate isolated pathway shall be provided for each phase to minimize the possibility of unit fault conditions reaching the power bus system

3. Power cable termination at the plug-in stab shall be a maintenance-free crimp type connection

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

11.E. Withdrawable Power Stabs.

1. Plug-in units shall have the capacity of withdrawing the power stabs, allowing the primary voltage to be disconnected with the unit door closed

2. The withdrawable assembly shall accept a standard 1/4’ hex-style drive socket

a. A complete power engagement shall occur when turning the mechanism ¼ turn in clockwise direction

b. Complete power disengagement shall occur when turning the mechanism ¼ turn in counter-clockwise direction

3. The withdrawable stabs design shall include a set of stab assembly-mounted shutters

a. shutters shall automatically open before the power stabs can extend and connect to the vertical bus

b. shutters shall close as soon as the power stabs are disconnected from the vertical bus and are completely inside the stab housing

4. The withdrawable stabs design shall include interlock mechanisms

a. The all through door mechanism shall allow the unit to be locked in the

‘Power Stabs Disconnected’ position

i. This mechanism shall be such that it can be padlocked to prevent the connection of the stabs to the vertical bus even when the unit is inserted into the vertical section

ii. Unit door shall be capable of opening with the padlock and lockout engaged

b. Unit disconnect handle must be in the OFF position (load side of the disconnect device removed from line power) before the stabs can be disconnected from the vertical bus

i. Mechanism shall also allow the removal of the unit from the vertical section but only after the disconnect handle has been turned OFF and the power stabs have been disconnected from the vertical bus

ii. Unit stabs have to be disconnected (withdrawn) before the unit can be re- inserted into the vertical section

5. The withdrawable stabs design shall include feedback mechanisms that are verifiable with the unit door closed

a. A two-position indication system shall be provided (Power Stabs Connected/Disconnected) and shall be visible from the door

i. Connected with Red Indication–Primary voltage stabs fully engaged and connected to the vertical bus

ii. Disconnected with Green Indication–Primary voltage stabs fully disconnected from the vertical bus

b. A set of test points shall be located on the front of the unit for identification of:

i. Power stabs position: a positive continuity check between these probes shall verify that all three power stabs have been disconnected from the vertical bus and completely withdrawn inside the stabs housing

ii. Stab-mounted shutters position: a positive continuity check between these probes shall verify that the shutters are closed, meaning that all three power stabs have been disconnected and withdrawn inside the stab housing

6. Withdraw able power stabs with door closed mechanism shall not increase he original unit height design so total space in the motor control center is optimized

7. A remote operating device shall be supplied to allow the connection and disconnection of the power stabs with the door closed

a. The minimum distance shall be not less than three times the minimum default value recommended by the NFPA 70E (Arc Flash Protection Boundary–Annex D)

Eaton Response: Eaton’s FlashGard design does not utilize the ¼ connection of power stabs to the vertical bus (knife switch connection methodology). The ¼ turn methodology brings about concerns for stab connections require an over center spring design to engage/disengage the connection to the vertical bus.

Over time, stab assemblies experience thermal cycling that create micro welds in the connection, which requires a certain amount of force to break. Eaton’s FlashGard mechanism is capable of handling this force by employing a linear screw driven mechanism with mechanical unit locks into the MCC structure itself.

This allows ensuring a positive connection means to the vertical bus and utilizing a slip free clutch to prevent over tightening.

Eaton’s FlashGard design provides indicators not only for the connection points to the vertical bus (11.E.5.a), but also provides indicators for shutter mechanism position, which further isolate the power stabs when removed from the vertical bus

11.F. Disconnect Handle.

1. Plug-in units shall be provided with a heavy-duty, non-conductive, industrial duty, flange mounted handle mechanism for control of each disconnect switch or circuit breaker

2. Use of rotary operators is not acceptable

3. Disconnect handles may pivot in the vertical or horizontal plane On-off condition shall be indicated by the handle position, red and green color indicators with the words

4. ON and OFF, and the international symbols 1 and O along with a pictorial indication of the handle position

5. Handles shall be capable of being locked in the OFF position with up to three padlocks

6. Plug-in units shall be provided with interlocks per NEMA and UL requirements Interlocks shall be provided for the following:

a. Prevention of unit insertion or withdrawal with the disconnect in the ON position

b. Prevention of the unit door from being opened when the disconnect is in the ON position

i. A feature for intentionally defeating this interlock by qualified personnel shall be provided

c. Prevention of the disconnect switch from being moved to the ON position if the unit door is open

i. A feature for intentionally defeating this interlock by qualified personnel shall be provided

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

11.G Pilot Devices.

1. Where specified, units shall be furnished with pushbuttons, selector switches, or pilot lights

2. Pilot devices shall be rated NEMA Type 4/13 water tight/oil tight

11.H Terminal Blocks.

1. Control terminal blocks shall be provided on all contactor and starter units.

a. Control terminal blocks shall be a pull-apart design on all plug-in units for easy removal of the unit from the structure

2. Control terminal blocks on non-plug-in contactor and starter units shall be fixed type.

3. Power terminal blocks shall be provided on all contactor and starter units, rated NEMA size 3 (100 A) and below that utilize vertically operated disconnects

a. Power terminal blocks shall be pull-apart for NEMA size 1 and 2 (30 A and 60 A contactors)

b. Power terminal blocks for NEMA size 3 starters (100 A contactors) shall be non- pull-apart

4. Terminal blocks shall not be located adjacent to or inside the vertical wire-way

Eaton Response: 11.H.4 – Terminal blocks not located adjacent to vertical.

Eaton provides adjacent to wire-way, which is a benefit to the customer.

Provides access to low voltage (120V) terminations for troubleshooting without having to enter the MCC Unit (480V power) 13/14/15/17/19/21 – Disconnects, starters, ATS, Soft Starters, Drives, Transformers & Panelboards.

Eaton manufactures components mentioned, including breakers/disconnects/transfer switches/TX & PNLBDs. This enables one point of contact capable of support all key assembly material for current and installed projects

11. I. Doors.

1. Each unit shall be provided with a removable door mounted on removable pin-type hinges

2. The unit doors shall be capable of being opened at least 110 degrees

3. The unit doors shall be removable from any location in the MCC without disturbing any other unit doors

4. The unit door shall be fastened to the structure so it can be closed to cover the unit space when the unit is removed

5. The unit doors shall be held closed with quarter-turn latches

5. Unit door latches shall be provided with arc resistant latches to help keep the door latched in the event that an internal arcing fault occurs

Eaton Response: Eaton provides adjacent to wire-way, which is a benefit to the customer. Provides access to low voltage (120V) terminations for troubleshooting without having to enter the MCC Unit (480V power) 13/14/15/17/19/21 – Disconnects, starters, ATS, Soft Starters, Drives, Transformers & Panelboards

12. METERING COMPARTMENT

12.A. MCCs shall include a plug-in metering unit.

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

12.B. Units shall include the following.

1. Fusible disconnect with fuses

a. The disconnect must be operable with the unit door closed

2. Fused control circuit transformer

3. Current transformers shall be installed at the factory on the incoming source side of the main breaker as to remain when/if the main breaker is removed/replaced

4. Solid-state power monitor with door mounted display

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

12.C. Power Monitor.

1. Power monitors shall be capable of displaying the following:

a. Line current for all three phases with plus or minus 0.2 percent full-scale accuracy

b. Average three phase current with plus or minus 0.2 percent full-scale accuracy

c. Line-to-neutral and line-to-line voltage with plus or minus 0.2 percent of full-scale accuracy

d. Current and voltage unbalance

e. Real, reactive, apparent, and true power with plus or minus 0.4 percent full-scale accuracy

f. KWh, KVARh, and kVAHnet

g. True RMS to the 45th harmonic

h. Frequency at plus or minus 0.5%

i. Power factor at plus or minus 0.4%

2. Power monitors shall include min/max logs and trend logs with up to 45,867 data points

3. Power monitors shall be capable of performing distortion analysis with THD, Crest Factor (I, V) and Distortion power factor

4. The power monitor shall include an EtherNet/IP communication port as standard and shall include DeviceNet communication capability

5. Power monitors shall include two form-C relays

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

13. DISCONNECTS

13.A. Main Disconnect.

1. If no overcurrent protection is indicated, provide a main incoming-line lug compartment

a. Lugs to accommodate the incoming power conductors shall be provided by MCC Manufacturer

2. If Main Fusible Disconnect Switch is necessary, provide:

a. Lugs to accommodate the incoming power conductors shall be provided by the MCC manufacturer

b. Power fuses to be provided by MCC manufacturer

c. Provide Class R fuses through 600 A. Provide Class L fuses above 600 A

d. Provide a removable protective barrier to reduce the possibility of contact with the line terminals

e. Provide one normally open and one normally closed auxiliary contact

3. If Main Circuit Breaker Disconnect is necessary, provide:

a. Lugs to accommodate the incoming power conductors shall be provided by the MCC manufacturer

b. The interrupting capacity rating shall meet or exceed the available fault current. Interrupting capacity based on a slash rating is not acceptable

c. Provide a circuit breaker with thermal magnetic trip unit for 250 A and smaller frames; provide electronic trip unit for 400 A and larger frames

d. Provide a removable protective barrier to reduce the possibility of incidental contact with the line terminals

e. Provide one normally open and one normally closed circuit breaker auxiliary contact that follows the position of the circuit breaker main contacts for indication of ‘On’ or ‘Off/Tripped’

f. For circuit breakers rated 1000 A and above, on Wye connected systems with a solidly grounded neutral, provide integrated ground fault protection with adjustable pick-up and adjustable time delay

g. Provide a Maintenance Mode function for main breakers to change the breaker trip set point to instantaneous to reduce the arc flash for maintenance operations

13.B. Feeder Disconnects

1. Disconnecting means for feeders shall be circuit breakers with thermal magnetic trip units for 250 A and smaller frames; provide an electronic trip unit for 400 A and larger frames

2. Interrupting capacity rating shall meet or exceed the available fault current

a. Interrupting capacity based on a slash rating is not acceptable

3. Minimum frame size shall be 125 A

4. Provide one normally open and one normally closed circuit breaker auxiliary contact which follows the position of the circuit breaker main contacts for indication of ‘On’ or ‘Off/Tripped’

5. Provide a Maintenance Mode function for feeder breakers 200A and larger to change the breaker trip set point to instantaneous to reduce the arc flash for maintenance operations

14. AUTOMATIC TRANSFER SWITCH

14.A. Provide an automatic transfer switch.

14.B. Provide the automatic transfer switch in compliance with the automatic transfer switch specification

14.C. The automatic transfer switch shall be provided integral to the MCC

Eaton Response: This standard design for Eaton Low Voltage Motor Control Centers and specifically, the Freedom arc-resistant MCC

15. COMBINATION NEMA ACROSS THE LINE STARTERS

15.A. Starters shall meet applicable NEMA and UL requirements.

15.B. Starters shall be minimum NEMA Size 1.

1. Fractional NEMA sizes are not acceptable

15.C. Starters shall be provided with a 3-pole solid state overload relay that includes the following features:

1. If EtherNet/IP communication is required, refer to the part of this section titled ‘EtherNet/IP Interface for Motor Starter Units’, which takes precedence over this overload relay requirement

2. If DeviceNet communication is required, refer to the part of this section titled ‘DeviceNet Interface for Motor Starter Units’, which takes precedence over this overload relay requirement

3. Selectable trip classes of 10, 15, 20, or 30

4. Set for class 20

5. Overload protection

6. Phase loss protection

7. Trip current adjustment range of 5:1

8. Visual trip status indication

9. Test/Reset button

10. Bipolar latching relay with one normally open and one normally closed contact, rated NEMA B600 for use in motor contactor control circuits

11. Thermal memory circuit to model the heating and cooling effects of motor on and off periods

12. Ground Fault and Jam protection shall be provided

13. If ground fault protection is required, it shall have a selectable trip value between 20 mA and 5 A

14. The overload relay shall contain EtherNet/IP and DeviceNET communications

15.D. In addition to the hold-in contact, starters shall be provided with one normally open and one normally closed auxiliary contact. The starter shall be capable of accommodating up to six contact in addition to the hold-in contact.

15.E. Provide a control power transformer with a rated secondary voltage of 120V AC.

The control power transformer shall be provided with primary and secondary fusing.

15.F. Overload relays shall have a reset button located on the outside of the unit door.

15.G. Provide a door mounted selector switch for Hand-Off-Auto operation. The Hand mode shall provide local control at the MCC unit door. In the Auto mode, control shall be provided through a remote contact.

15.H. Provide door mounted 120V AC push-to-test pilot lights with LED lamps for On (Red) and Off (Green) status indication.

16. Motor Starter Units.

16.A. Electro-mechanical NEMA starters:

1. Disconnecting means for the across the line starters shall be motor circuit protectors

2. unit short circuit rating shall be greater than or equal to the available fault current

3. Units shall be supplied based upon the rules/requirements set forth in the UL 845, NEMA ICS-18, and NFPA 70

4. Contractor shall field adjust the units based upon the particular motor application.

5. Minimum MCP frame size shall be 125 A

6. Provide one normally open and one normally closed circuit breaker auxiliary contact…