Two relevant parameters are current and time. Voltage is irrelevant here. A ballpark number is defined by an (I squared t) rule. IOW, as current (I) increases, it causes time (t) for a trip to decrease exponentially.
Exact number is unique for each model fuse or breaker. But and for example, a 20 amp breaker may conduct up to 25 amps for anywhere from many minutes up to two hours before it trips. And yet trip quite suddenly on a 60 amp current flow.
A voltage number defines what voltages a fuse or breaker can interrupt. A voltage too high means a fuse or breaker may continue conducting current. Any voltage below its rating does not affect tripping time.
The trip coil has the whole circuit load amperage flowing through it. Thepurpose of the breaker is to only allow current up to its trip point. That is the only way that the breaker can sense if the current is within the limit rating. If the circuit load amperage becomes greater that the breaker rating it will trip. The trip coil that you refer to is a magnetic trip which senses the magnetic field that surrounds the wire. Breakers also have a thermal trip which senses a heat build up on the current flowing through it. If the breaker is in a high ambient temperature it will lower the rating on the breaker.
No, it does not have voltage in trip position.
A trip free circuit breaker is one that will disconnect a circuit even if the manual switch is held at the "on" position. It is a safety feature to prevent a circuit breaker being disabled either deliberately or accidentally.
When a shunt trip occurs, the breaker typically goes to the "trip" position, which indicates that the circuit has been interrupted and the contacts are open. This allows for quick identification of the issue and isolation of the circuit for safety reasons.
The ambient temperature does have an effect on the tripping point of a breaker. If a breaker is operating at near capacity the additional ambient temperature will lower the breaker trip set point.
MCB (Miniature Circuit Breaker)-rated current not more than 100 A. Trip characteristics normally not adjustable. Thermal or thermal-magnetic operation. Breakers illustrated above are in this category.MCCB (Molded Case Circuit Breaker)-rated current up to 2500 A. Thermal or thermal-magnetic operation. Trip current may be adjustable in larger ratings. MCB (Miniature Circuit Breaker)-rated current not more than 100 A. Trip characteristics normally not adjustable. Thermal or thermal-magnetic operation. Breakers illustrated above are in this category.MCCB (Molded Case Circuit Breaker)-rated current up to 2500 A. Thermal or thermal-magnetic operation. Trip current may be adjustable in larger ratings.from Manu anand
A circuit breaker can trip due to overloading, short circuits, or ground faults.
The trip coil has the whole circuit load amperage flowing through it. Thepurpose of the breaker is to only allow current up to its trip point. That is the only way that the breaker can sense if the current is within the limit rating. If the circuit load amperage becomes greater that the breaker rating it will trip. The trip coil that you refer to is a magnetic trip which senses the magnetic field that surrounds the wire. Breakers also have a thermal trip which senses a heat build up on the current flowing through it. If the breaker is in a high ambient temperature it will lower the rating on the breaker.
Well, darling, the difference between a thermal magnetic release circuit breaker and a microprocessor-based release circuit breaker is like comparing a rotary phone to a smartphone. The thermal magnetic one uses a bimetallic strip to trip when there's an overload, while the microprocessor-based one is smarter than your average bear, using electronic sensors and algorithms to detect faults more precisely. So, in a nutshell, one's old school and the other's high-tech.
A circuit breaker trips when there is an overload of electrical current flowing through the circuit, causing it to heat up and trip the breaker to prevent damage or fire.
The ampere frame rating for a circuit breaker designates how the circuit breaker should be configured. It also states the trip unit of the amp.
If you are describing a circuit breaker then its electromagnetic trip component will operate in the event of a line*-to-ground (*not 'phase'!) short circuit. The thermal overload component will only operate in the event of a sustained overload.
A local breaker backup relay is used to check the operation of distribution circuit breakers and to trip the feeder circuit breaker if the distribution circuit breaker fails to trip on an overload.
To trip a circuit breaker in case of an electrical overload, locate the circuit breaker panel in your home, identify the breaker that corresponds to the overloaded circuit, and switch it to the "off" position. This will cut off power to the circuit and prevent further damage.
No, it does not have voltage in trip position.
A non-auto circuit breaker is a circuit breaker with the trip element removed. Basically, it is a modified circuit breaker that is now a disconnect switch (glorified disconnect switch).
A trip free circuit breaker is one that will disconnect a circuit even if the manual switch is held at the "on" position. It is a safety feature to prevent a circuit breaker being disabled either deliberately or accidentally.