Rockwell Automation 2364E Non-Regenerative DC Bus Supply Unit (NRU) - Manual (Page 86)

Publication 2364E-5.01 April 2002
C-6 NRU Details
Figure 8
1500 and 2000A DC NRU Recommended Circuit Breaker Settings
Figure 9
2500 and 3000A DC NRU Recommended Circuit Breaker Settings
Short Delay
P i c k u p
2 I
n
Long Delay
Setting (I
R
)
1 x I
n
= I
R
Long Delay
Time
7 Sec
At
6 x I
R
Inst
Setting
2.5 x I
n
Breaker Trips
At 6T
Test Amps
3 I
n
Test
Trip Reset
Unit Status