Hardware reference guide
Power Supplies
35013379 02 October 2007 105
140CPS42400 DC Redundant Power Supply, 48 Vdc, 8 A Module
Overview The following provides information on the DC redundant power supply, 48 Vdc, 8 A 
module.
Power Supply 
Module
The following figure shows the power supply module components. 
Note: When field wiring the power supply module, the maximum wire size that 
should be used is 1 - 14 AWG or 2 - 16 AWG; the minimum is 20 AWG.
Note: Tolerance to input interruptions may be increased by adding an 80 Vdc 
electrolytic capacitor between 5 and 6 of the power terminal strip. Refer to the hold-
up capacitor timing chart (above) for capacitor values.
140
CPS 424 00
PS 48 VDC
X
Removable Door
Customer Identification Label
(Fold label and place it inside door)
Model Number
Module Description
Color Code 
LED Area
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Field Wiring
Connector Cover
Field Wiring
Connector
1
2
3
4
5
6
7
1
2
3
4
5
6
7
Alarm
Relay
48Vdc-
48Vdc+
+
-
cap
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com










