Electric Motor Control

10th Edition
Publisher: CENGAGE L
ISBN: 9781133702818



Electric Motor Control

10th Edition
Publisher: CENGAGE L
ISBN: 9781133702818
Chapter 8, Problem 2SQ
Textbook Problem

What is the principal difference between a contactor and a motor starter?

To determine

Write the principal difference between contactor and motor starter.

Explanation of Solution


Contactors are electromagnetic switches that are very convenient for interrupting and connecting the branch circuits, based on the range or size of contractors.

Contractors with a combination of pilot devices are used to control AC motors, switch lightning, and heavy loads.

Small-range contactors with a combination of control devices are used for larger controls that provide overload protection separately...

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