277 V Circuit Breaker 205

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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	Manufacturer Series	Trip Time/Delay	Additional Features	Actuator Type	Packing Method	Body Length/Diameter	Body Width	Environmental Characteristics	Dimensions	Circuit Function	Body Height	Reference Standard	No. of Poles	Maximum Operating Temperature	Blow Characteristic
AA1-B0-34-630-5D1-C	Carling Technologies	Magnetic Circuit Breaker	Panel Mount	277 V	80 V	30 A	Screw	-40 °C (-40 °F)	5 kA			Standards: MIL-PRF-55629, MIL-STD-202	Handle		2 in (50.8 mm)	0.755 in (19.18 mm)	Corrosion/Moisture Resistant		Series Trip	1.64 in (41.66 mm)	CSA; UL	1	85 °C (185 °F)
DA3-B0-20-615-121-C	Carling Technologies	Magnetic Circuit Breaker	Panel Mount	277 V		15 A	Screw	-40 °C (-40 °F)	5 kA				Toggle Handle		3.612 in (91.75 mm)	2.265 in (57.53 mm)	Moisture Resistant		Series Trip	2.165 in (54.99 mm)	CSA; UL	3	85 °C (185 °F)
FAZ-C1.5/2-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		1.5 A	Snap On		10 kA				Toggle						Manual On/Off			2
FAZ-C15/2-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		15 A	Snap On		10 kA				Toggle						Manual On/Off			2
FAZ-C2/1-RT-SP	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		2 A	Snap On	-25 °C (-13 °F)	10 kA				Toggle	Bulk	4.134 in (105 mm)	0.697 in (17.7 mm)			Trip Free	1.772 in (45 mm)	CSA; UL	1	75 °C (167 °F)
W68-X2Q12-3	TE Connectivity	Magnetic Circuit Breaker	Panel Mount	277 V		3 A	Quick Connect	-40 °C (-40 °F)	5 kA		2.2 s		Toggle		2 in (50.8 mm)	1.5 in (38.1 mm)	Fungus Resistant; Moisture Resistant	2 x 1.5 x 1.64 in (50.8 x 38.1 x 41.66 mm)	Series Trip	1.64 in (41.66 mm)	CSA; UL	2	85 °C (185 °F)	Standard
W91-X112-2	TE Connectivity	Magnetic Circuit Breaker	Panel Mount	277 V		2 A	Stud	-40 °C (-40 °F)	5 kA		2.2 s		Toggle		2.5 in (63.5 mm)	1.5 in (38.1 mm)			Series Trip	1.845 in (46.86 mm)		1	85 °C (185 °F)
W91-X113-15	TE Connectivity	Magnetic Circuit Breaker	Panel Mount	277 V		15 A	Stud	-40 °C (-40 °F)	5 kA		150 ms		Toggle		2.5 in (63.5 mm)	0.75 in (19.05 mm)			Series Trip	1.845 in (46.86 mm)		1	85 °C (185 °F)
FAZ-C6/3-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		6 A	Snap On		10 kA				Toggle						Manual On/Off			3
FAZ-C3/2-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		3 A	Snap On		10 kA				Toggle						Manual On/Off			2
FAZ-C1.5/1-NA-SP	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		1.5 A	Snap On		10 kA				Toggle						Manual On/Off			1
FAZ-C15/1-NA-SP	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		15 A	Snap On		10 kA				Toggle						Manual On/Off			1
FAZ-B6/1-SP	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V	48 V	6 A	Snap On	-40 °C (-40 °F)	15 kA				Toggle		3.15 in (80 mm)	0.701 in (17.8 mm)	IP20		Manual On/Off	2.362 in (60 mm)	CCC; CE; CSA; IEC; UL; VDE	1	75 °C (167 °F)	Short
FAZ-C20/1-NA-SP	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		20 A	Snap On		10 kA				Toggle						Manual On/Off			1
FAZ-D20/2-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		20 A	Snap On		10 kA				Toggle						Manual On/Off			2
W68-X2Q12-7	TE Connectivity	Magnetic Circuit Breaker	Panel Mount	277 V		7 A	Quick Connect	-40 °C (-40 °F)	5 kA		2.2 s		Toggle		2 in (50.8 mm)	1.5 in (38.1 mm)	Fungus Resistant; Moisture Resistant	2 x 1.5 x 1.64 in (50.8 x 38.1 x 41.66 mm)	Series Trip	1.64 in (41.66 mm)	CSA; UL	2	85 °C (185 °F)	Standard
FAZ-B15/1-SP	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V	48 V	15 A	Snap On	-40 °C (-40 °F)	15 kA				Toggle		3.15 in (80 mm)	0.701 in (17.8 mm)	IP20		Manual On/Off	2.362 in (60 mm)	CCC; CE; CSA; IEC; UL; VDE	1	75 °C (167 °F)	Short
FAZ-D1.5/1-NA-SP	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		1.5 A	Snap On		10 kA				Toggle						Manual On/Off			1
FAZ-D15/1-NA-SP	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		15 A	Snap On		10 kA				Toggle						Manual On/Off			1
FAZ-D30/2-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		30 A	Snap On		10 kA				Toggle						Manual On/Off			2
102241	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V	48 V	3 A	Snap On	-25 °C (-13 °F)	15 kA			Rated breaking capacity at 400 VAC					IP20; IP40		Trip		CE; CSA; EN; IEC; UL	3	75 °C (167 °F)
FAZ-C2/2-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		2 A	Snap On		10 kA				Toggle						Manual On/Off			2
FAZ-C4/2-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		4 A	Snap On		10 kA				Toggle						Manual On/Off			2
FAZ-C6/2-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		6 A	Snap On		10 kA				Toggle						Manual On/Off			2
FAZ-D3/2-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		3 A	Snap On		10 kA				Toggle						Manual On/Off			2
1020002	Phoenix Contact	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V	125 V	10 A	Screw And Snap On	-35 °C (-31 °F)	5 kA			Interrupting current max(DC): 7500 A		Bulk	3.205 in (81.4 mm)	1.39 in (35.3 mm)	IP20			2.587 in (65.7 mm)	CUL; IEC-60947-2; UL	2	70 °C (158 °F)
FAZ-C1/1-NA-SP	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		1 A	Snap On		10 kA				Toggle						Manual On/Off			1
FAZ-C20/2-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		20 A	Snap On		10 kA				Toggle						Manual On/Off			2
FAZ-C20/3-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V	60 V	20 A	Snap On	-25 °C (-13 °F)	14 kA				Toggle Handle		4.134 in (105 mm)	2.091 in (53.1 mm)	IP20; IP40		Trip Free	1.772 in (45 mm)	CE; CSA; EN; IEC; UL	3	75 °C (167 °F)
FAZ-C5/1-SP	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V	48 V	5 A	Snap On	-40 °C (-40 °F)	15 kA				Toggle		3.15 in (80 mm)	0.701 in (17.8 mm)	IP20		Manual On/Off	2.362 in (60 mm)	CCC; CE; CSA; IEC; UL; VDE	1	75 °C (167 °F)	Short
FAZ-D6/1-NA-SP	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		6 A	Snap On		10 kA				Toggle						Manual On/Off			1
FAZ-D6/2-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		6 A	Snap On		10 kA				Toggle						Manual On/Off			2
1019980	Phoenix Contact	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V	60 V	10 A	Snap On	-35 °C (-31 °F)	5 kA			RATED BREAKING CAPACITY AT 60 VDC: 7500 A	Toggle	Bulk	3.205 in (81.4 mm)	0.693 in (17.6 mm)	IP20		Trip	2.37 in (60.2 mm)	CUL; IEC 60947-2; TUV; UL	1	70 °C (158 °F)
FAZ-C2/1-NA-SP	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		2 A	Snap On		10 kA				Toggle						Manual On/Off			1
FAZ-C8/1-NA-SP	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		8 A	Snap On		10 kA				Toggle						Manual On/Off			1
FAZ-D10/1-NA-SP	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		10 A	Snap On		10 kA	FAZ			Toggle						Manual On/Off			1
FAZ-D10/2-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		10 A	Snap On		10 kA				Toggle						Manual On/Off			2
FAZ-D25/2-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V	60 V	25 A	Snap On	-25 °C (-13 °F)	15 kA						3.15 in (80 mm)	1.394 in (35.4 mm)	IP20; IP40		Trip	2.579 in (65.5 mm)	CSA; IEC; UL	2	75 °C (167 °F)
FAZ-D3/1-SP	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V	48 V	3 A	Snap On	-40 °C (-40 °F)	5 kA				Toggle	Bulk	3.15 in (80 mm)	0.697 in (17.7 mm)	IP20		Trip Free	2.362 in (60 mm)	CSA; UL	1	167 °C (332.6 °F)
FAZ-D30/3-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		30 A	Snap On		10 kA				Toggle						Manual On/Off			3
FAZ-D4/1-NA-SP	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		4 A	Snap On		10 kA				Toggle						Manual On/Off			1
1019986	Phoenix Contact	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V	60 V	25 A	Snap On	-35 °C (-31 °F)	5 kA				Toggle	Bulk	3.205 in (81.4 mm)	0.693 in (17.6 mm)	IP20		Trip Free	2.587 in (65.7 mm)	CUL; UL	1	70 °C (158 °F)
278543	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V	48 V	250 mA	Screw And Snap On	-40 °C (-40 °F)	5 kA				Handle	Bulk	3.15 in (80 mm)	0.697 in (17.7 mm)	IP20		Trip	2.858 in (72.6 mm)	CE; CSA; EN; IEC; UL	1	75 °C (167 °F)
FAZ-B1.5/1-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		1.5 A	Snap On		10 kA				Toggle						Manual On/Off			1
FAZ-B10/3	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V	60 V	10 A	Snap On	-40 °C (-40 °F)	10 kA				Toggle Handle		3.15 in (80 mm)	2.067 in (52.5 mm)	Corrosion Resistant; IP20; IP40		Trip Free	2.579 in (65.5 mm)	CE; CSA; EN; IEC; UL	3	75 °C (167 °F)	Short
FAZ-B15/1-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		15 A	Snap On		10 kA				Toggle						Manual On/Off			1
FAZ-C2/1N	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V	48 V	2 A	Screw	-40 °C (-40 °F)	15 kA	FAZ			Toggle				IP20		Manual On/Off		CCC; CE; CSA; IEC; UL; VDE	1	75 °C (167 °F)	Short
FAZ-C25/3-NA	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		25 A	Snap On		10 kA				Toggle						Manual On/Off			3

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.