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 be protected against overcurrent under which of the following conditions?
- A. The conductor runs between two separate controller enclosures on the same deck
- B. The branch circuit overcurrent device rating is 150 percent of the conductor's current-carrying capacity
- ✓ The opening of the control circuit would create a hazardCorrect
- D. The control circuit voltage exceeds 24 volts
Why C is correct
46 CFR §111.70-7(a)(4) exempts a control, interlock, or indicator circuit conductor from overcurrent protection requirements when the opening of that circuit would create a hazard. The other options either do not match the listed exemptions or describe conditions that still require protection.
Cited:46 CFR §111.70-7