Rockwell Automation Guardmaster Allen-Bradley 440R-S35001 - Output Load Capability

Rockwell Automation Publication 440R-RM003A-EN-P - July 2021 9
Chapter 1 Introduction
Output Load Capability
Every safety relay has limitations on the amount of current the relay can switch
or carry. When the load exceeds the rating of the safety relay, you can use
relays that interpose, as shown in Figure 1
.
Figure 1 - Output Load Capability Using Interposing Relays
S11
S12
S21
S22
S34A1 13
L11A2 14
23
24
33
CR1 CR2
41
34 42Y32
GSR CI
440R-S13R2
0
MM
AM
+24V DC
24V Com
CR1 CR2
K1 K2
L1
K1
K2
L2 L3
M
Interposing Relays
CR1 and CR2 consist of:
700-HPSXZ24 (relay)
700-HN123 (base)
700-AD1LR (diode and status
indicator)
700-HN119 (retainer)
RESET