Trical schematic (table 7.a) – Rockwell Automation 2364E Non-Regenerative DC Bus Supply Unit (NRU) User Manual
Page 48
![background image](/manuals/580588/48/background.png)
Publication 2364E-5.01 April 2002
7-4
Your 2500A DC NRU (Current Code F)
Table 7.A: 2500A DC NRU Symbol-to-Component Cross Reference
AC 3-Phase Input Voltage
Symbol
Description
Option
230V AC
380V AC
460V AC
575V AC
AM1
Ammeter monitoring L1
3000A
CB1
Circuit breaker
3000A R-frame breaker with 2500A plug
CH11
DC choke
44 uH
CH11-TG
DC choke thermoswitch
CR1
Phase-loss relay
CR2
Fault relay
CT1, CT3
Current transformer
3000:5
D1 - 6
Diodes
3000A AC, 1800V AC
EA1
Powermonitor II
EA2
Bus indicator PCB
EA2F1 - 2
Bus indicator PCB fuses
1A, 1000V, HVR, 1-3/32" diameter, 3" length, 500AIC
EA3
Line RC suppressor PCB
EA4
Bridge suppressor PCB
EA5 - 6
Air flow sensor PCB
F1 - 3, F1A-3A Incoming 3-phase, line fuses
1250A, 170M
F4, F6
Primary fuse for a 2 kVA control
transformer
12A, KLDR
8A, KLDR
6.25A, KLDR
5A, KLDR
Primary fuse for a 5 kVA control
transformer
30A, KLDR
17.5A, KLDR
15A, KLDR
12A, KLDR
Primary fuse for a 10 kVA control
transformer
60A, KLDR
35A, FRS
25A, KLDR
20A,KLDR
F7
NRU control power fuse
12A, KLDR
F8
Control bus fuse for a 2 kVA
control transformer
5A, KLDR
Control bus fuse for a 5 kVA
control transformer
30A, FRN
Control bus fuse for a 10 kVA
control transformer
70A, FRN
F11 - 13
Phase-loss fuses
1A, KLDR
F14 - 16
Line RC suppressor fuses
25A, KTKR
HS1 - 2
Bridge heatsink
MTR1
Bridge fan
1200 CFM
MTR1-C
Bridge fan capacitor
20 uF capacitor
MTR2 - 3
Door-mounted fan by choke
6.9", 340 CFM
MTR4 - 6
Door-mounted fan by CB
6.9", 340 CFM
PL1
DC-Bus-Energized pilot light
24V AC/VDC, red, 800MR
PL2
Unit-Not-Faulted pilot light
120V AC, amber, 800MR
PS1
Air flow sensor power supply
24V DC, 1.1A
PT1
Control power transformer
A 1 kVA control transformer is standard, 5 kVA and 10 kVA control
transformers are available as options. This transformer has multiple
taps to accommodate 230, 380, 460, 575V AC primary voltages.
S1 - 2
Heatsink thermoswitch
220 °F
S3
Choke thermoswitch
S5 - 6
Air flow sensor
SP1 - 3
Line-to-line MOVs
360 J, 275V AC 460 J, 320V AC 460 J, 320V AC 550 J, 385V AC
SP4
Neutral-to-ground MOV
600 J, 550V AC 760 J, 680V AC 760 J, 680V AC 760 J, 680V AC
VM1
DC bus voltmeter
750V DC
750V DC
1000V DC
1000V DC
VM2
Ground fault detector
Components marked as being options are part of NRU standard options. Not all NRUs will have these components.