SATPC0037271 Tab 04 4 SOW.pdf
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- Attached to
- 277V/480V, 3 PHASE , 4 WIRES, 60 HZ Switchboard
- Solicitation number
- 80NSSC25891642Q
About this file
This Statement of Work specification sheet details requirements for a high-capacity electrical switchboard system. The specifications call for a UL 891 listed switchboard operating at 277V/480V, 3-phase, 4-wire, 60Hz with a 2000A copper main bus (tin-plated) and 100% rated neutral. The system requires a 65 KAIC rating, NEMA 1 enclosure, and 240kA surge protective device (SPD) with dry contact and surge counter.
Key technical requirements include a 2000A main breaker with comprehensive protection features (trip unit, long/short time, instantaneous, and ground fault), arc flash reduction maintenance mode switch, and a 3-phase power meter with CTs and display. The enclosure dimensions are specified as 91.5" height, 72" width, and 24" depth, with top entry main feeders. Square D QED-2 is suggested as the manufacturer, and the design includes copper ground bus with plugs for each device. This specification appears to be part of a sole-source procurement for NASA's Shared Services Center.
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Other files
| File | Type | Posted |
|---|---|---|
| SATPC0037271 Tab 07 Capability Statement SAM.gov.pdf | ||
| SATPC0037271 Tab 06 RDSS..pdf |
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Text version
Statement of work - Specifica�on Sheet
• UL 891 AND UL LISTED
• SYSTEM VOLTAGE: 277V/480V, 3 PHASE , 4 WIRES, 60 HZ
• NEUTRAL BUS FULLY RATED
• MAIN BUS 2000A, COPPER BUS, TIN, 1005 NEUTRAL
• 65 K.A.I.C. RATING
• ENCLOSURE: NEMA 1
• SPD: 240 kA. INCLUDING SPD DRY CONTACT AND SURGE COUNTER
• MAIN BREAKER 2000 A WITH PROTECTION INCLUDING TRIP UNIT, LONG TIME, SHORT TIME, INSTANTANEOUS, GROUND FAULT
• MAINTENANCE MODE SWITCH: ARC FLASH REDUCTION
• POWER METER WITH 3 CTS AND DISPLAY, 3 PHASE, 4 WIRES
• GROUND PLUG PROVIDE FOR EACH DEVICE
• COPPER GROUND BUS
• MAIN FEEDERS ENTER ON TOP ENCLOSURE
• SUGGESTED MANUFACTURER: SQUARE D QED-2
• Dimensions o Overall Height 91.5” o Overall Width 72” o Overall Depth 24”
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