External main contactor controlX3switch-disconnector and miniature cir-
cuit breaker for cabinet heater (option
+G300)
+G300
Indication of main contactor status5X250Emergency stop relay for options
+Q951 and +Q963
A61
Indication of the status of the molded
case circuit breaker (option +F289)
X289Switch-disconnector and miniature
circuit breaker for cabinet heater (op-
tion +G300)
Q95,
F95
Connection terminals for cabinet
heater (option +G300)
X300Auxiliary transformer fusesF21
Connection of external emergency
stop button (options +Q951 and Q963)
X951Auxiliary transformer's secondary side
miniature circuit breaker
F22
Operation principle and hardware description 43
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