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Can you use a 20 amp breaker if the amp rating on a heater is 21 amp?
Wiki User
∙ 14y ago
No, a breaker needs to be loaded less than 80 percent. As they reach their tripping point they get hot. The circuit rating, breaker and wiring is not designed for 21 amps. The next size would be a 25 to 30 amp breaker that has #10 wire feeding it.
Wiki User
∙ 14y ago
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Can you use 12-2 and a double 20 amp breaker to run a basebord heater rated at 4.2 amps and the thermostat rated at 17 amps?
Answer for USA, Canada and countries running a 60 Hertz supply service.The thing to consider here is the current rating of the baseboard heater. If the baseboard heater is 240 volt then yes you would need to use a two pole breaker. If you are using just one heater on the circuit, the current rating of the heater is low enough that you could use a two pole breaker rated at 15 amps and copper wire rated at #14 . The rating of the thermostat is the maximum that the stat will handle safely. With the combination you suggest you could run a total of 3800 watts of baseboard heaters. In amps this would be 16 and well within the rating of the stat.
What amp breaker for 220volt air conditioner?
Look at the current rating on the AC unit. If under 16 Amps use a 20 A breaker and 12 AWG wire.
Can you use a skinny breaker for a refrigerator?
Yes, as long as the rating of the breaker is high enough. Do not use a 20 amp breaker with 14 ga wire however. 14 ga wire can not have a breaker ratered high than 15 amps serving it.
Can I you use existing 8 3 wire hooked to a 30amp breaker was hooked to old electric heater to wire a heater that requires 10 2 wire its a 5000watt 240volt heater?
Yes the wire size is larger for that size breaker but will not effect the 30 amp breaker protection of that circuit.
What gauge wire and amp breaker do you use on a stove dryer and hot water heater?
A stove is a two pole 50, and hot water heater i would recommend the same.
240v nema6-50r outlet wired with 6 gauge wire and 50 amp breaker you need to run a heater with a nema 6-30p can you simply put a 30 amp receptical in place of the 50 amp receptical?
Not legally because the rating of the 30 amp receptacle would have a 50 amp breaker ahead of it. If you reduced the feed breaker to 30 amps and still use the #6 wire, this would be within the electrical code rules.
What best breaker rating for 1.5 hp air-con unit?
The breaker you use is determined by the size of the wire in the wall not by what is being connected to that circuit. If you have 14/2 wire then use a 15 amp breaker. If you have 12/2 wire then use a 20 amp breaker. The breaker protects the wiring not the item connected.
What best breaker rating for 1.5 hp air con unit?
The breaker you use is determined by the size of the wire in the wall not by what is being connected to that circuit. If you have 14/2 wire then use a 15 amp breaker. If you have 12/2 wire then use a 20 amp breaker. The breaker protects the wiring not the item connected.
Can you use 12-2 and a double 20 amp breaker to run a basebord heater rated at 4.2 amps and the thermostat rated at 17 amps?
Answer for USA, Canada and countries running a 60 Hertz supply service.The thing to consider here is the current rating of the baseboard heater. If the baseboard heater is 240 volt then yes you would need to use a two pole breaker. If you are using just one heater on the circuit, the current rating of the heater is low enough that you could use a two pole breaker rated at 15 amps and copper wire rated at #14 . The rating of the thermostat is the maximum that the stat will handle safely. With the combination you suggest you could run a total of 3800 watts of baseboard heaters. In amps this would be 16 and well within the rating of the stat.
What size ext cord for 2000w heater?
Use #12 wire and a 20 amp two-pole circuit breaker.
What amp breaker for 220volt air conditioner?
Look at the current rating on the AC unit. If under 16 Amps use a 20 A breaker and 12 AWG wire.
Can you use a skinny breaker for a refrigerator?
Yes, as long as the rating of the breaker is high enough. Do not use a 20 amp breaker with 14 ga wire however. 14 ga wire can not have a breaker ratered high than 15 amps serving it.
Can I you use existing 8 3 wire hooked to a 30amp breaker was hooked to old electric heater to wire a heater that requires 10 2 wire its a 5000watt 240volt heater?
Yes the wire size is larger for that size breaker but will not effect the 30 amp breaker protection of that circuit.
Can you use a 60 amp breaker with a 50 amp overcurrent device?
A 50 amp breaker is an overcurent device.
What gauge wire and amp breaker do you use on a stove dryer and hot water heater?
A stove is a two pole 50, and hot water heater i would recommend the same.
What is a 30 amp circuit breaker used for?
A 30 amp circuit breaker is needed unless the load is a motor circuit, then it has to be sized to 250 percent of the motors full load amps. For 30A circuit is needed breaker 30*1.25=37.5 --> 40A. If load is lamp or heater, then use breaker of group A or B. If load is motor, then use breaker of groupC or D (very hard start) or special safe breaker for motor - with variable amp setpoint. See related link also. By code you are only allowed 80% of the rating of a breaker. So 30x80%=24amps. 24 amps is the MAX allowed on a 30 amp breaker. You would need a 40amp breaker for a 30 amp circuit. 40x80%=32. So you would want a double pole 40amp breaker.
What breaker do you use for 10 2 wire?
Use a 30 amp breaker.
