The maximum amperage capacity of the circuit protected by 30 amp breakers is 30 amps.
Yes, different amperage rating circuit breakers can have the same short circuit characteristics.
Fuses and circuit breakers are meant to protect your home's wiring from the heat generated from fault-currents and over-currents. Over-currents happen when you exceed the amperage the fuse or breaker is rated for over a period of time (IE: drawing 20 amps on a 15 amp circuit breaker). When this occurs a fuse or circuit breaker will open the circuit so the wiring in your home will not be damaged. Over-currents happen when electricity finds a path, other than the one intended, to ground. When this happens there is very little resistance to slow the flow of electricity and the amperage through the circuit can exceed the fuse or circuit breakers rated capacity by several hundred times . These type of faults cause the fuse or circuit breaker to open the circuit very quickly.
The maximum amperage capacity of a 150 amp circuit breaker is 150 amps.
The maximum amperage capacity of a 30 amp circuit breaker is 30 amps.
The maximum amperage capacity of a 60 amp circuit breaker is 60 amps.
The maximum amperage capacity of a 90 amp circuit breaker is 90 amps.
The recommended amperage for a circuit protected by a 50-amp breaker is 80 of the breaker's rating, which is 40 amps.
No, it is not safe to use two 20 amp circuit breakers to protect a 40 amp circuit. Circuit breakers are designed to protect the wiring in a circuit from overheating, and using a higher amperage circuit breaker than the wiring is rated for can lead to overheating and potential fire hazards. It is important to use the correct size circuit breaker for the amperage rating of the circuit.
To calculate the total amps in a breaker panel, add up the amperage ratings of all the individual circuit breakers in the panel. This total amperage should not exceed the panel's maximum capacity, which is typically labeled on the panel itself.
Its not Fused is protected by a circuit breakers
During an electrical fault, be it a short circuit or circuit overload, fuses and breakers are designed to open at a specific amperage. This opening of either device eliminates a fire hazard before it gets a chance to start. This is how fuses and breakers protect the home.
GE circuit breakers with catalog numbers ranging from THQL1115 through to THQL1150 can be substituted like for like with Cutler-Hammer circuit breakers coded CL115 through to CL150, ITE Siemens circuit breakers coded Q115 through to Q150 and Square D circuit breakers coded HOM115 through to HOM150. These are single pole breakers. GE circuit breakers with catalog codes from THQL2115 through to THQL2150 can be substituted with Cutler-Hammer circuit breakers CL215 through to CL250, Square D circuit breakers HOM215 through to HOM250 and ITE Siemens circuit breakers Q215 through to Q250 of the same amperage and voltage. These are double pole breakers.