The main breaker will have marking indicating size of electrical service, or if it is a fuse system....the fuses will have current ratings. If it is a subpanel, it might not have a main breaker. In this case you would have to look in the panel that the feed is coming from and find the size of the breaker that is feeding it. In either case you must look for the manufacturer's label that will have the maximum current the panel can handle, make sure the breaker feeding the panel doesn't exceed this rating.
A double breaker is a breaker that has 2 switches on it. One of the switches is 20 amps and the other is 30 amps.
Look on the heater and see what amps it is pulling. That will determine the wire size and breaker size. It must be on a dedicated circuit. 15 amps = AWG # 14 wire with 15 amp breaker 20 amps = AWG # 12 wire with 20 amp breaker 30 amps = AWG # 10 wire with 30 amp breaker 40 amps = AWG # 8 wire with 40 amp breaker
It's the amps that are controlled by the breaker not the volts. You can have a 600 volt 15 amp breaker, you can have a 347 volt 15 amp breaker. The breaker will trip when you exceed 15 AMPS.
Depends on what you have connected to the circuit. It is less than 10 amps or the breaker would trip. A rule of thumb is you design for about 80% load related to the breaker. For 20 amps that would equal 16 amps.
If there is any additional load on the outlets greater than 2.5 amps the breaker will trip. Loads of 1500 watts should be on a dedicated breaker. If the total load exceeds 15 amps the breaker will operate. However many of the outlets might supply only lights, TVs or nothing at all, so in those conditions it's OK.
A double breaker is a breaker that has 2 switches on it. One of the switches is 20 amps and the other is 30 amps.
Breaker boxes do not have fuses associated with them unless the main disconnect is independent from the breaker box. If that is the case both fuses have to be the same in the main disconnect that protects the breaker box.
Yes, # 4 AWG copper and 100 amps is the max.
KA stands for kilo-amps, or thousands of amps. Thus a 2KA breaker means it will trip when the load exceeds 2,000 amps.
It's the amps that are controlled by the breaker not the volts. You can have a 600 volt 15 amp breaker, you can have a 347 volt 15 amp breaker. The breaker will trip when you exceed 15 AMPS.
Look on the heater and see what amps it is pulling. That will determine the wire size and breaker size. It must be on a dedicated circuit. 15 amps = AWG # 14 wire with 15 amp breaker 20 amps = AWG # 12 wire with 20 amp breaker 30 amps = AWG # 10 wire with 30 amp breaker 40 amps = AWG # 8 wire with 40 amp breaker
The number that is on a breaker is the amount of amperage that the breaker can deliver before it trips. This is the same regardless of how many poles the breaker is.
A circuit breaker of 30 amps will protect a 30 amp load . you may have a 1000 amps service it does not matter because the 30 amps breaker will open up at 30 amps therefore safe. OF COURSE THE OTHER WAY AROUND WILL NEVER WORK. Just check to make sure that the wire from the 30 amp breaker is a #10 or larger. If it was a 50 amp plug originally more that likely the wire will be a #6. As the answer above states it is safe.
For a 100 Amp breaker panel it would be 2 AWG. For 150 Amps it would require 2/0 (2 ought) aluminum wire.
61 nano-amps is 0.061 milliamps or 0.000061 amps
Depends on what you have connected to the circuit. It is less than 10 amps or the breaker would trip. A rule of thumb is you design for about 80% load related to the breaker. For 20 amps that would equal 16 amps.
If there is any additional load on the outlets greater than 2.5 amps the breaker will trip. Loads of 1500 watts should be on a dedicated breaker. If the total load exceeds 15 amps the breaker will operate. However many of the outlets might supply only lights, TVs or nothing at all, so in those conditions it's OK.