Question 237Electricity & Electronics - 1st Asst/Chief

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What is the proper name for the entire device, including all subassemblies, shown in the illustration? Illustration EL-0181

Diagram for USCG Electrical Chief: What is the proper name for the entire device, including all subassemblies,...
ASafety disconnect switch
BCombination starter
CMagnetic contactor
DMagnetic starter
AI Explanation

The correct answer is B) Combination starter. A combination starter is the proper name for the entire device shown in the illustration EL-0181. It includes all the necessary subassemblies, such as a magnetic contactor, overload relay, and a disconnecting means, to provide complete motor control and protection. The other options are incorrect because: A) A safety disconnect switch is a separate component that isolates the power supply, not the complete motor control assembly. C) A magnetic contactor is a single component within the combination starter, not the entire device. D) A magnetic starter is an older term that refers to the same type of device as a combination starter.

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Official Resources
46 CFR Electrical Engineering 46 CFR Machinery & Electrical USCG National Maritime Center
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