motor and recep on same branch circuit

[quinn77]

Is it permissable to install a 120v recep on a 240v single phase 3 wire branch circuit with a 1hp 240 single phase motor. The HO wants to add a recep for a heat lamp at his well house for freeze protection. The existing conduit is 3/4, 50 ft from panel. The breaker is 20amp, FLA of motor is 9.6a. Does NEC allow this? Code ref please.

 

[augie47]

IMO, 210.23(A)(2) would allow the install as the motor load does not exceed 50% of the circuit ampacity.

 

[kwired]

Is it permissable to install a 120v recep on a 240v single phase 3 wire branch circuit with a 1hp 240 single phase motor. The HO wants to add a recep for a heat lamp at his well house for freeze protection. The existing conduit is 3/4, 50 ft from panel. The breaker is 20amp, FLA of motor is 9.6a. Does NEC allow this? Code ref please.

Next question is do you have a separate grounded and equipment grounding conductor run to the well house?

 

[JDB3]

Opening statement said 3 wire 240 volt, so he only has 2 hots & 1 ground.

 

[GoldDigger]

Opening statement said 3 wire 240 volt, so he only has 2 hots & 1 ground.

Which would then require an isolation transformer to get 120 without having a grounded conductor (neutral)?

 

[quinn77]

will add neutral for recep, just needed code ref that would allow the two loads to be served from that circuit. Normally, I would have two circuits for this. This is a question asked by a colleage of mine...and I was scratching my head as where to start.

 

[kwired]

Opening statement said 3 wire 240 volt, so he only has 2 hots & 1 ground.

Exactly why I asked - to confirm he meant exactly what he said. Sometimes people don't include the EGC in the count sometimes they do.