Rockwell Automation 2364E Non-Regenerative DC Bus Supply Unit (NRU) - Manual (Page 73)

Publication 2364E-5.01 April 2002
NRU Catalog Numbers and Spare Parts Kits B-3
System utilization voltages.
Multiple option numbers must be separated by a dash and added to the base catalog number in
ascending order.
Each NRU includes a basic capacity control transformer that supplies the NRU with control power.
Control power source options allow you to select a higher capacity control transformer for control
bus applications. Control power source options include a control bus fuse and control bus. (Refer to
the Electrical Specifications section in Appendix A for capacity values.)
Each NRU may have either one AC input ammeter or one Powermonitor II. The Powermonitor II
options consists of a 1403-MM05A master module, a 1403-DMA display module, and a master-to-
display cable. This standard configuration works with grounded-wye secondary supplies. For
information on Powermonitor II configurations for other supply types, consult Powermonitor II
documentation and the Power Quality and Automation group located in Milwaukee.
The 1403-NSC option offers communication links to RIO, RS-485, and RS-232. This option may
only be selected if 86MBY is selected.
Power transformer must have a resistive, grounded-wye secondary where the resistance is
1 5 0 - 3 0 0 o h m s .
Units come standard with cloth wire labels. Datab labels offer the added protection of a clear plastic
cover on top of the labels.
Customer supplies 115V AC control power and wiring to the duplex receptacle.
The line RC suppressor is recommended for installations where the primary of the distribution
transformer is 2300V AC or greater.
Footnotes