MOTOR CONTROL CIRCUIT Over Current PROTECTION!

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Novice-Sparky

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Canada
Hello,

I am Currently working on a system that has 3-600v pumps. (so Three Motor starters) the control circuit is a dedicated 120v circuit from a 120/208v panel. all three starters are interlocked with an E-stop.

Now because the control circuit is on dedicated 120v breaker do i still need to fuse each control circuit accordingly. or is the 15 amp breaker suffice?

Thanks for your time.
 
You can have one OCP device, but that doesn't give you the flexibility to isolate the three control circuits. The proper way would be to have three fused control circuits from separate circuits. Creates redundancies in equipment control SOOs/SOPs.


Novice-Sparky said:
Hello,

I am Currently working on a system that has 3-600v pumps. (so Three Motor starters) the control circuit is a dedicated 120v circuit from a 120/208v panel. all three starters are interlocked with an E-stop.

Now because the control circuit is on dedicated 120v breaker do i still need to fuse each control circuit accordingly. or is the 15 amp breaker suffice?

Thanks for your time.
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