In the basic 3-wire control circuit of a 3-phase AC induction motor that uses a full-voltage motor -starter, two individual PB switches are required.
The two individual PB switches must be wired in __________.________.
Continuous control-voltage or control power is normally applied to the __________________ PB switch, which serves to interrupt the start or run condition of the motor.
The __________________ PB switch serves to initiate a run condition of the motor and must be wired in parallel with a set of __________________ auxiliary contacts on the motor -starter to seal in the start action.
A) parallel; NC Stop; NO Start; NC
B) series; NO Start; NC Stop; NO
C) parallel; NC Stop; NO Start; NO
D) parallel; NO Start; NC Stop; NO
E) series; NC Stop; NO Start; NO
F) series; NC Stop; NO Start; NC
Show Answer
Answer:E
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