The overload relays for ___ rated integral-horsepower 3-pole electromagnetic motor-starters normally contain a single set of control contacts, which are held closed by mechanical linkage to all three of the heater elements

The overload relays for ______________________ -rated integral-horsepower 3-pole electromagnetic motor-starters normally contain a single set of control contacts, which are held closed by mechanical linkage to all three of the heater elements.

If any leg (phase supply) of the motor should draw current in excess of the heater element’s current rating, that respective heater will release the control contacts; if the control contacts are wired correctly in the control circuit, it will interrupt control power being applied to the motor-starter solenoid.

A) higher
B) lower
C) none of the answers
D) either lower or higher

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Answer:B

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