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The maximum load on a 30 amp breaker is 30 amps at 40 degrees C. If the ambient temperature is higher that 40 degrees C then the breaker will trip at a lower current. Keep in mind the breaker is a dual function device. On a short circuit the magnetic component will trip the breaker instantaneously.
If you are designing a branch circuit for a load that is constantly on, code may require you to "derate" the branch by 20 percent so that the ordinary load is not at the rated load of the overcurrent protection.
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What is the difference between a 30 amp and a 40 amp breaker?
A 30 amp breaker is designed to handle a maximum continuous load of 30 amps, while a 40 amp breaker can handle a maximum continuous load of 40 amps. The 40 amp breaker allows for more current to flow through before tripping, making it suitable for higher power requirements compared to the 30 amp breaker. Always consult with a qualified electrician before adjusting or replacing circuit breakers to ensure safety and compliance with electrical codes.
What happens when you plug a 30 amp appliance into a 50 amp breaker?
If you plug a 30 amp appliance into a 50 amp breaker, the breaker will still function to protect the circuit from overheating due to excess current. However, the appliance may not draw enough current to trip the breaker in case of a fault, potentially causing damage to the appliance. It is generally recommended to match the amperage of the appliance to the appropriate breaker size.
What is breaker size for 240 volt 9 KW?
The formula you are looking for is I = W/E.
Can you use a double 30amp breaker to feed 2 15 amp?
no, load will brake at 30 not 15 as needed
How do I know if I have a 30 amp breaker at my house to plug a trailer into?
If it is a 30 amp breaker then it is a 240 volt outlet.
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 is the difference between a 30 amp and a 40 amp breaker?
A 30 amp breaker is designed to handle a maximum continuous load of 30 amps, while a 40 amp breaker can handle a maximum continuous load of 40 amps. The 40 amp breaker allows for more current to flow through before tripping, making it suitable for higher power requirements compared to the 30 amp breaker. Always consult with a qualified electrician before adjusting or replacing circuit breakers to ensure safety and compliance with electrical codes.
What happens when you plug a 30 amp appliance into a 50 amp breaker?
If you plug a 30 amp appliance into a 50 amp breaker, the breaker will still function to protect the circuit from overheating due to excess current. However, the appliance may not draw enough current to trip the breaker in case of a fault, potentially causing damage to the appliance. It is generally recommended to match the amperage of the appliance to the appropriate breaker size.
What is breaker size for 240 volt 9 KW?
The formula you are looking for is I = W/E.
How do you turn a 30 amp circuit into a 15 amp cicuit?
Replace the 30 Amp Breaker with a 15 Amp breaker.
Is the 30 amp breaker for a motorhome the same as for a house?
Yes, a 30 amp breaker is a 30 amp breaker. It must however be able to fit the box it is installed in.
Can you use a double 30amp breaker to feed 2 15 amp?
no, load will brake at 30 not 15 as needed
How do I know if I have a 30 amp breaker at my house to plug a trailer into?
If it is a 30 amp breaker then it is a 240 volt outlet.
What size breaker can you use on a 7500watt generator?
Depends on the wire size you are using. If the generator breaker is a 30 amp then install a 30 amp breaker.
Is a double throw 15amp breaker the same as a 30 amp breaker amp?
You have a double pole breaker for 240Volt supply. The maximum current is 15 amp.
Is a 2 pole 30 amp circuit breaker equivalent to 30 amp?
Yes.
How many electrical outlet can be install to a 30amps breaker?
A 30 amp breaker is usually used for a dedicated 30 amp device. Ordinary 15 amp receptacles can not be connected to a breaker of higher trip capacity than the rating of the receptacle. The wire size for a 30 amp breaker is #10 AWG.
