USCG Exam PracticeMotor controllers and remote control
Per 46 CFR §111.70-7, a conductor of a remote control circuit of a motor controller is NOT required to have overcurrent protection under which of the following conditions?
- ✓ The conductor is wholly within the controller enclosureCorrect
- B. The conductor runs between two separate motor-control centers on the same deck
- C. The control circuit voltage exceeds 24 volts
- D. The conductor carries interlock signals between two different machinery spaces
Why A is correct
46 CFR §111.70-7(a)(1) exempts conductors that are wholly within the controller enclosure from the overcurrent protection requirement. Conductors running externally between equipment do not qualify for this exemption.
Cited:46 CFR §111.70-7