Circuit protection for a custom motor

D

Dnlans88

New User
Location
New York
Occupation
Field Service Manager
Hello,

I am looking for a little help here. I have limited experience with electrical motors and the circuits to protect them but I am not completely new to it.
We have a single phase 208-230VAC motor that is 3 HP and pulls about 14.5 Amp according to the motor data plate. This motor has no internal thermal protection. Now this motor is attached to a hydraulic pump and the pump manufacturer sells it as one complete unit(pump/motor) . They have their own data tag showing 230VAC @ 22 amps. They also have a duty cycle mentioned of S2 1min. They have a nema L14-20P on a 14/3 SOOW whip that's 2' long. What kind of electrical run should be made for this motor?

Thanks!
-Dan
 
If it were me, I would take the fact they have it on a L14-20P to mean they want a 20A branch circuit. I would probably still opt to have a fusible disconnect right next to a L14-20R and size the conduit for #10s just in case you need the lower impedance for voltage drop.

But ultimately you should get some kind of electrical spec sheet from the manufacturer that your electrician can base the wire and protection off of.
 
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