Rockwell Automation 2364E Non-Regenerative DC Bus Supply Unit (NRU) - Manual (Page 21)

Publication 2364E-5.01 April 2002
Overview 1-7
Bulletin 2364E NRU –
Standard Features Electrical System Features
• A 3-phase circuit breaker / motor circuit protector rated for
65kAIC:
• 180 and 350A DC units have motor circuit protectors
• 900, 1500, 2000, 2500, and 3000A DC units have circuit
breakers
• AC line, current-limiting fuses rated at 600V AC with short
circuit protection rated at 65kAIC
• A six-pulse, full-wave, 3-phase-diode-bridge rectifier unit
• A DC bus choke with inductance in both +/- legs
• A "basic capacity" control power transformer that supplies ONLY
the NRU with single-phase, 115V AC control power
• Primary and secondary control transformer fusing (excluding the
control bus fuse that is supplied with the "6P" and "6PX" control
power source upgrade options)
• A "DC-Bus-Energized" pilot light that turns on when the bus
voltage is above 50V DC
• Compatible with Bulletin 1336 dynamic braking (DB) chopper
units
Note: A dynamic braking chopper unit requires an additional
cabinet section.
• A bridge suppressor module
• Configurations available for 230, 380, 460, and 575V AC inputs
with 180, 350, 900, 1500, 2000, 2500, and 3000A DC outputs
• Utilization of #16 AWG MTW (PVC insulated) rated, stranded
copper control wiring
Packaging Features
• Utilization of Bulletin 2100 CENTERLINE motor control center
(MCC) packaging makes the NRU compatibility with other
Bulletin 2100 and 2300 products
• Unit depth of 20"
• DC bus and control bus (if selected) depth at
•11.9 inches in 180 and 350A DC (current codes A and B)
units
•16.9 inches in 900, 1500, 2000, 2500, and 3000A DC (cur-
rent codes C, D, E, F, and G) units