
Southwire 15-ft 10 / 3 / Romex SIMpull Solid Indoor CU NM-B W/G Individual pack ( By-the-roll )
When using this for a 220 hot water heater what size breaker do I need
2
Depends on wattage of water heater. Most new water heaters are 4500 watt so you could use either a 25 or 30 amp breaker. You should use 10-2 NM-B.
Was this Answer Helpful ?This product is rated for 30 Amps per the NEC so use a 30 Amp or smaller breaker. Check the water heater to make certain it does not require more than 30 Amps.
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