120 V. instant hot water heater draws 29 amps.
I consider it continuous, so I'll spec. it on a 40 A breaker. (29 * 1.25 = 36 amps, and 40 is the next standard size.)
Can I still specify #10 wire (since the load is only 29 amps), or do I need to use #8?
I guess I normally size the wire from the breaker size, so I would normally call out #8, but I'm just wondering if this is really necessary.
Steve
I consider it continuous, so I'll spec. it on a 40 A breaker. (29 * 1.25 = 36 amps, and 40 is the next standard size.)
Can I still specify #10 wire (since the load is only 29 amps), or do I need to use #8?
I guess I normally size the wire from the breaker size, so I would normally call out #8, but I'm just wondering if this is really necessary.
Steve