ECN Forum Forums Code Related Discussion NEC & other Code issues 10-2 for a sub pabel?

I'm with the " neutral grounded only at the service " crowd.

I'd use the 10-2 strickly as a 120V branch feeder. I'd use a dinky sub-panel to permit breakout loads such as lights.

If the only load is a pump, I'd land the 10-2 on a smaller breaker (20A) and use as is. I wouldn't even set a sub-panel.