Relay protection, Relay output modules (t7446l, h), Figure 6. voltage and current vs. service life – Rockwell Automation T7446L_H ICS Regent+Plus Relay Output Modules User Manual
Page 10
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Relay Output Modules (T7446L, H)
1 0
Industrial Control Services
10
100
1000
10000
100000
0
0.4
0.8
1.2
1.6
2
2.4
10
100
1000
10000
100000
0
0.4
0.8
1.2
1.6
2
2.4
Figure 6. Voltage and Current vs. Service Life.
Relay Protection
Each relay circuit must be fused externally to protect the
relay and the load. Modules are also fused internally with
factory-replaceable fuses to protect the I/O assembly and the
module’s printed circuit board.
If an inductive load is connected, a suitable snubber must be
externally provided.
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