Amp frame vs amp trip. Depending on the details of the breakers you are using this 100 amp trip breaker will require a frame size of 100 amps minimum. Dec 16 2009 0212 pm ampere frame. Modern breakers have adjustable or interchangeable trip units to allow the trip settings to be ad. Jun 20 2005 1 i am looking at a drawing of a panel scedule.
Frame amps and trip amps. So you might see 100af100at or 250af100at for example. Start date jun 20 2005. It is the normal current which the breaker can carry or i is the full current carrying capacity of the breaker.
The ampere frame rating for a circuit breaker designates how the circuit breaker should be configured. Jraef electrical 25 jan 06 1924 it is really only important when there is an overlap which typically occurs at larger sizes. What is ampere trip and ampere frame of a mccb. There is no interchanging between 15 and 20 amp receptacles as the configuration of the plug is completely different so items with 15 and 20 amp cord caps will not plug into a 30 amp receptacle unlike how a 15 amp cord cap will plug into a 20 amp receptacle.
There is a trip amp rating and a frame amp rating for each circuit. Ampere trip and ampere frame. Your 100at designates that the circuit breaker should be configured with a 100 amp trip unit or perhaps a trip unit that can be set at 100 amps. A motor that is rated at 250 full load amps will need 400 amp time delay fuses or a 500 amp frame breaker with adjustable amperage trips.
Please clarify the concept of amp frame and amp trip. Joined jun 20 2005 1. It also states the trip unit of the amp. On engineering documents that refer to molded case circuit breakers it is common practice to designate the frame and trip sizes of the breaker.