240V 50 AMP BREAKER INSTALL

Should something happen and the heater draw more than 30amps, you might then have a problem but the heater itself should have its own protections against over pulling. In this case if your 30amp heater were to pull the max, then you would be running at 100% of the rating. I purchased a 240V heater but it is rated at 30A and has a NEMA 6-30 plug on it. I would like to use this source for an electric heater. I believe the previous owner used this for an arc welder. That means you need heavy-gauge wire to prevent overheating. 240V, 30A heater on a 240V, 50A circuit kevder 16 years ago Hi, I have a 240V, 50A outlet (NEMA 6-50R) in my garage. The second is that 240-volt circuits carry high-amp current. If the heater is rated for 30 amps and you put a 30 amp breaker on there, then you are at a highly slighter risk as it is generally recommended to not exceed 80% of the breakers rating. The first is that 240-volt wiring requires two hot wires, not just one as 120-volt circuits do. In this case if the wiring is rated for 50amps, I would put the 50amp system back on there. Think of it like this, the device will only draw as much amperage as it needs so as long as you stay below the max for the circuit then you are ok. This is what allows you to plug in, for example, five different devices into one circuit as long as the combination of those devices do not exceed the total amperage of the circuit. The majority of devices that you plug in will be less amperage than the circuit provides and this is kind of the point. In the dual-breaker, both breakers are bridged in order for them to trip simultaneously.

240V 50 AMP BREAKER INSTALL

Putting a higher amp device on a lower amp circuit = might be a problem You will need to install a double (or dual) pole 50 amp 120/240-volt breaker where 240-volt service will be split into 2 HOT feeds. Putting a lower amp device on a higher amp circuit = Not a problem.

240v 50 amp breaker