250 A Circuit Breaker 3

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Part RoHS Manufacturer Circuit Protection Type Mounting Feature Rated AC Voltage Rated DC Voltage Rated Current Terminal Shape Minimum Operating Temperature Terminal Finish Rated Breaking Capacity Manufacturer Series Trip Time/Delay Additional Features Actuator Type Packing Method Body Length/Diameter Body Width Environmental Characteristics JESD-609 Code Dimensions Circuit Function Body Height Reference Standard No. of Poles Maximum Operating Temperature Blow Characteristic

423027

Legrand

Thermal Magnetic Circuit Breaker

Panel Mount

400 V

250 A

Screw

-25 °C (-13 °F)

36 kA

Toggle Handle

Bulk

6.496 in (165 mm)

5.512 in (140 mm)

Trip

4.409 in (112 mm)

IEC

4

70 °C (158 °F)

422191

Legrand

Thermal Magnetic Circuit Breaker

Panel Mount

400 V

250 A

Screw

-25 °C (-13 °F)

50 kA

Toggle Handle

Bulk

10.236 in (260 mm)

7.205 in (183 mm)

Trip

5.669 in (144 mm)

IEC

4

70 °C (158 °F)

CA3-P0-D4-825-322-MT

Carling Technologies

Magnetic Circuit Breaker

Panel Mount

80 V

250 A

Stud

-40 °C (-40 °F)

10 kA

Standards: MIL-PRF-55629, MIL-STD-202

Handle

2.563 in (65.1 mm)

2.265 in (57.53 mm)

Corrosion/Moisture Resistant

Series Trip

1.85 in (47 mm)

UL

3

85 °C (185 °F)

Circuit Breaker

A circuit breaker is an automatic electrical switch that is designed to protect an electrical circuit from damage caused by overcurrent or short circuits. Circuit breakers are commonly used in residential, commercial, and industrial electrical systems, and they are an important safety device that helps prevent electrical fires, equipment damage, and personal injury.

Circuit breakers work by monitoring the amount of current flowing through an electrical circuit. If the current exceeds a preset level, the circuit breaker will trip, or open the circuit, to prevent damage to the electrical system. When the circuit breaker trips, it interrupts the flow of current, which stops the electrical current from flowing and prevents further damage.

Circuit breakers are available in a variety of types and sizes, and they can be classified based on their voltage rating, current rating, and interrupting capacity. Some common types of circuit breakers include thermal circuit breakers, magnetic circuit breakers, and hybrid circuit breakers.

In addition to protecting electrical systems from overcurrent and short circuits, circuit breakers also help improve the reliability and efficiency of electrical systems. They can also be used to switch electrical circuits on and off, which can be helpful in certain applications.