portable pump protection

[John Powell]

I have a 460vac 3 phase pump with a manual starter (Nema 4 enclosure) I want to use for pumping oil from one tank to another.

I want to be able to plug or connect this into any suitable 3 phase 460 vac supply around the plant, using proper connection means.

I have overloads on the starter, and the pump runs at about 3 amps.

The SO type cable I will be using is good for 20 amps. It is 20 feet long

This is for an industrial application.

Do I need GFCI protection? Can I use only the circuit breaker at the panel (20amps) to properly protect this pump and the operator?

I am thinking I will need additional circuit protection (besides the overloads) at the pump. Is this true?

 

[DaveTap]

I have a 460vac 3 phase pump with a manual starter (Nema 4) I want to use for pumping oil from one tank to another.

I want to be able to plug or connect this into any suitable 3 phase 460 vac supply around the plant, using proper connection means.

I have overloads on the starter, and the pump runs at about 3 amps.

The SO type cable I will be using is good for 20 amps. It is 20 feet long

This is for an industrial application.

Do I need GFCI protection?

If this is indoors and not a "wet location" I don't see why.

Can I use only the circuit breaker at the panel (20amps) to properly protect this pump and the operator?

Yes (actually its protecting the wires, grounding the pump protects the operator)

I am thinking I will need additional circuit protection (besides the overloads) at the pump. Is this true?

No, wires are protected by 20A breaker, motor is protected by the overloads, if it is cord and plug connected that can be your disconnecting means, if not you can install a breaker lock (assuming it is within sight of the pump)