80 A Circuit Breaker 5

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Part	Manufacturer	Circuit Protection Type	Mounting Feature	Rated AC Voltage	Rated DC Voltage	Rated Current	Terminal Shape	Minimum Operating Temperature	Rated Breaking Capacity	Actuator Type	Packing Method	Body Length/Diameter	Body Width	Environmental Characteristics	Dimensions	Circuit Function	Body Height	Reference Standard	No. of Poles	Maximum Operating Temperature
XT1NU3080AFF000XXX	Abb	Thermal Magnetic Circuit Breaker	DIN Rail Mount	347 V		80 A	Snap On		18 kA			5.118 in (130 mm)	3 in (76.2 mm)		5.118 x 3 x 2.756 in (130 x 76.2 x 70 mm)	Trip	2.756 in (70 mm)	CSA; UL	3
423052	Legrand	Thermal Magnetic Circuit Breaker	Panel Mount	400 V		80 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)
413-K14-LN2-80A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount	115 V	28 V	80 A	Screw	-55 °C (-67 °F)	6 kA	Push-Pull		1.26 in (32 mm)	0.748 in (19 mm)	Corrosion/Moisture Resistant; IP00; IP40		Tease-Free And Trip-Free	1.929 in (49 mm)	CSA; UL	1	75 °C (167 °F)
BAB2080	Eaton Corporation	Thermal Magnetic Circuit Breaker	Panel Mount	240 V		80 A	Screw		10 kA	Toggle Handle	Bulk					Trip		CSA; UL	2
QBHW2080	Eaton Corporation	Thermal Magnetic Circuit Breaker	Panel Mount	240 V		80 A	Screw		22 kA	Toggle Handle	Bulk					Trip		CSA; UL	2

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.