Power supply wiring – Rockwell Automation 1746-Px SLC 500 Power Supplies Installation Instructions User Manual
Page 8
 
8 Installation Instructions
Publication 1746-IN004B-EN-P - March 2008
Power Supply Wiring
1. Place the input voltage jumper to match the input voltage. (This does not
apply to the 1746-P3, 1746-P5, 1746-P6, and 1746-P7 power supplies, which 
do not have a jumper.)
TIP
For more information on wiring, see Allen-Bradley 
Programmable Controller Grounding and Wiring Guidelines, 
publication 1770-4.1.
Refer to publication 1746-IN016, for chassis installation and 
grounding requirements.
ATTENTION
!
Set the input jumper before applying power. Hazardous 
voltage is present on exposed pins when power is 
applied; contact with the pin may cause injury to 
personnel.
WARNING
!
If you connect or disconnect the wiring to the terminal 
blocks or if you insert or remove the power supply while 
power is on, an electrical arc can occur. This could cause 
an explosion in hazardous location installations. Be sure 
that power is removed or the area is nonhazardous 
before proceeding.
Catalog Numbers
1746-P1 & 1746-P2
Catalog Number
1746-P4
Fuse
Jumper Selection
Jumper Selection
100/120 Volts
200/240 Volts
85-132V ac
170-250V ac