Circuit Breaker

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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
S201UDC-K3	Abb	Thermal Magnetic Circuit Breaker
W28-XQ1A-8	TE Connectivity	Thermal Circuit Breaker	Panel Mount	250 V	32 V	8 A	Quick Connect		1 kA		2.2 s		Push To Reset		0.625 in (15.88 mm)	0.54 in (13.72 mm)		0.625 x 0.54 x 1.535 in (15.88 x 13.72 x 38.99 mm)	Series Trip	1.535 in (38.99 mm)	CSA; UL; VDE	1
2CDS252001R0024	Abb	Thermal Magnetic Circuit Breaker
420362	Legrand	Thermal Circuit Breaker	DIN Rail Mount	400 V		40 A	Snap On	-25 °C (-13 °F)	50 kA				Handle	Bulk	6.496 in (165 mm)	4.134 in (105 mm)			Trip	3.937 in (100 mm)	IEC	3	70 °C (158 °F)
W28-XQ1A-20	TE Connectivity	Thermal Circuit Breaker	Panel Mount	250 V	32 V	20 A	Quick Connect		1 kA		2.2 s		Push To Reset		0.625 in (15.88 mm)	0.54 in (13.72 mm)		0.625 x 0.54 x 1.535 in (15.88 x 13.72 x 38.99 mm)	Series Trip	1.535 in (38.99 mm)	CSA; SEV; UL; VDE	1
W28-XQ1A20	TE Connectivity	Thermal Circuit Breaker	Panel Mount	250 V	32 V	20 A	Quick Connect				2.2 s		Push To Reset						Series Trip			1
W28XQ1A20	TE Connectivity	Thermal Circuit Breaker	Panel Mount	250 V	32 V	20 A	Quick Connect				2.2 s		Push To Reset						Series Trip			1
1393255-8	TE Connectivity	Magnetic Circuit Breaker	Panel Mount	277 V		30 A	Stud	-40 °C (-40 °F)	5 kA		2.2 s		Toggle		2.5 in (63.5 mm)	2.25 in (57.15 mm)			Series Trip	1.845 in (46.86 mm)		3	85 °C (185 °F)
A9F07150	Schneider Electric Sa	Thermal Magnetic Circuit Breaker
W68-X2Q12-20	TE Connectivity	Magnetic Circuit Breaker	Panel Mount	277 V		20 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
2CDS251001R0337	Abb	Thermal Magnetic Circuit Breaker
GV3P50	Schneider Electric Sa	Thermal Magnetic Circuit Breaker	DIN Rail And Panel Mount	690 V		50 A	Screw And Snap On	-20 °C (-4 °F)	6 kA			Reference standard: UL	Rotary Handle	Bulk	5.197 in (132 mm)	2.165 in (55 mm)	IK09; IP20		Trip	5.354 in (136 mm)	ABS; ATEX; BV; CSA; CCC; DNV-GL; EAC; EN; IEC; LR0S; UKCA	3	60 °C (140 °F)
CTB-B-B-05	Carling Technologies	Thermal Circuit Breaker	Panel Mount	250 V	50 V	5 A	Quick Connect		1 kA				Rocker		0.76 in (19.31 mm)	0.76 in (19.31 mm)			Series Trip	1.535 in (38.99 mm)	CE; CUL; UL; VDE	1
S201M-C25	Abb	Thermal Magnetic Circuit Breaker
MS3320-1	Defense Logistics Agency	Thermal Circuit Breaker	Panel Mount	120 V	28 V	1 A	Screw	-55 °C (-67 °F)	3.5 kA			Rated breaking capacity at 28 VDC: 6000 A	Push-Pull		0.781 in (19.84 mm)	0.593 in (15.06 mm)	Corrosion Resistant; Moisture Resistant	0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)	Trip Free	1.03 in (26.16 mm)	MIL-C-5809	1	121 °C (249.8 °F)
MS3320-20	Defense Logistics Agency	Thermal Circuit Breaker	Panel Mount	120 V	28 V	20 A	Screw	-55 °C (-67 °F)	2 kA			Rated breaking capacity at 28 VDC: 6000 A	Push-Pull		0.781 in (19.84 mm)	0.593 in (15.06 mm)	Corrosion Resistant; Moisture Resistant	0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)	Trip Free	1.03 in (26.16 mm)	MIL-C-5809	1	121 °C (249.8 °F)
3RV2011-1DA10	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	690 V		3.2 A	Snap On	-20 °C (-4 °F)	10 kA			Interrupting current max at 450 VDC: 10000 A	Handle		3.819 in (97 mm)	1.772 in (45 mm)	IP20	3.819 x 1.772 x 3.815 in (97 x 45 x 96.9 mm)	Trip	3.815 in (96.9 mm)	ATEX; CCC; CE; CSA; EAC; IECEX; KC; UL; VDE	3	60 °C (140 °F)
W28-XQ1A-12	TE Connectivity	Thermal Circuit Breaker	Panel Mount	250 V	32 V	12 A	Quick Connect		1 kA		2.2 s		Push To Reset		0.625 in (15.88 mm)	0.54 in (13.72 mm)		0.625 x 0.54 x 1.535 in (15.88 x 13.72 x 38.99 mm)	Series Trip	1.535 in (38.99 mm)	CSA; UL; VDE	1
W28-XQ1A12	TE Connectivity	Thermal Circuit Breaker	Panel Mount	250 V	32 V	12 A	Quick Connect				2.2 s		Push To Reset						Series Trip			1
W28XQ1A12	TE Connectivity	Thermal Circuit Breaker	Panel Mount	250 V	32 V	12 A	Quick Connect				2.2 s		Push To Reset						Series Trip			1
24337	Schneider Electric Sa	Thermal Magnetic Circuit Breaker	DIN Rail Mount	415 V		16 A	Snap On	-25 °C (-13 °F)	3 kA				Toggle		3.189 in (81 mm)	1.417 in (36 mm)			Trip	2.874 in (73 mm)		2	60 °C (140 °F)
3VA2340-5HL32-0AA0	Siemens	Thermal Circuit Breaker	Panel Mount	690 V		400 A	Screw	-25 °C (-13 °F)	55 kA				Toggle		9.8 in (248.92 mm)	5.4 in (137.16 mm)	IP40	9.8 x 5.4 x 4.3 in (248.92 x 137.16 x 109.22 mm)	Trip	4.3 in (109.22 mm)		3	70 °C (158 °F)
5SY4110-7	Siemens	Thermal Circuit Breaker	DIN Rail Mount	400 V		10 A	Snap On	-25 °C (-13 °F)	5 kA	5SY4110-7		Environmental Characteristics: IP20; Sealed			3.535 in (89.8 mm)	0.693 in (17.6 mm)	Environment/Moisture Resistant	3.535 x 0.693 x 2.764 in (89.8 x 17.6 x 70.2 mm)	Trip	2.764 in (70.2 mm)	CE; EAC; IMQ; KTL; UL; VDE	1	55 °C (131 °F)
FAZ-C15/2-RT	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	480 V		15 A	Snap On	-25 °C (-13 °F)	14 kA				Toggle		4.134 in (105 mm)	1.39 in (35.3 mm)			Trip Free	1.772 in (45 mm)	CSA; UL	2	75 °C (167 °F)
1620-2-10A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount		12 V	10 A	Quick Connect	-40 °C (-40 °F)	150 A				Modified Reset		0.524 in (13.3 mm)	0.276 in (7 mm)	Corrosion Resistant; IP00; IP50		Trip	0.984 in (25 mm)		1	85 °C (185 °F)
2TC2-20	Texas Instruments	Thermal Circuit Breaker	Panel Mount	120 V	28 V	20 A	Screw		2 kA	2TC2			Push-Pull		0.781 in (19.84 mm)	0.593 in (15.06 mm)	Corrosion Resistant	0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)		1.03 in (26.16 mm)
2CDS253001R0467	Abb	Thermal Magnetic Circuit Breaker
W23-X1A1G-5	TE Connectivity	Thermal Circuit Breaker	Panel Mount	240 V	50 V	5 A	Screw		1 kA		6 s		Push-Pull		1.384 in (35.15 mm)	0.69 in (17.53 mm)	Corrosion/Environment/Moisture Resistant		Series Trip	1.6 in (40.64 mm)	CSA; UL	1
MS3320-10L	Eaton Corporation	Thermal Circuit Breaker	Panel Mount	120 V	28 V	10 A	Screw	-55 °C (-67 °F)	3.5 kA			Standard: MIL-C-5809, rated breaking capacity at 28 VDC: 6000 A	Push Button		0.781 in (19.84 mm)	0.593 in (15.06 mm)	Corrosion Resistant; Moisture Resistant	0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)	Trip	1.03 in (26.16 mm)		1	121 °C (249.8 °F)
MS3320-7-1/2	Eaton Corporation	Thermal Circuit Breaker	Panel Mount	120 V	28 V	7.5 A	Screw	-55 °C (-67 °F)	3.5 kA			Standard: MIL-C-5809, rated breaking capacity at 28 VDC: 6000 A	Push Button		0.781 in (19.84 mm)	0.593 in (15.06 mm)	Corrosion Resistant; Moisture Resistant	0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)	Trip	1.03 in (26.16 mm)		1	121 °C (249.8 °F)
2800886	Phoenix Contact	Thermal Magnetic Circuit Breaker								2800886
MS3320-2	Defense Logistics Agency	Thermal Circuit Breaker	Panel Mount	120 V	28 V	2 A	Screw	-55 °C (-67 °F)	2.8 kA			Rated breaking capacity at 28 VDC: 6000 A	Push-Pull		0.781 in (19.84 mm)	0.593 in (15.06 mm)	Corrosion Resistant; Moisture Resistant	0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)	Trip Free	1.03 in (26.16 mm)	MIL-C-5809	1	121 °C (249.8 °F)
M9F42105	Schneider Electric Sa	Thermal Magnetic Circuit Breaker
W33-T4B1Q-5	TE Connectivity	Thermal Circuit Breaker	Panel Mount	250 V	50 V	5 A	Quick Connect		1 kA		3 s		Rocker		1.89 in (48.01 mm)	0.98 in (24.89 mm)			Series Trip	1.724 in (43.79 mm)		2
2TC2-2	Texas Instruments	Thermal Circuit Breaker	Panel Mount	120 V	28 V	2 A	Screw		2.8 kA	2TC2			Push-Pull		0.781 in (19.84 mm)	0.593 in (15.06 mm)	Corrosion Resistant	0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)		1.03 in (26.16 mm)
SU201M-K10	Abb	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V	48 V	10 A	Screw And Snap On	-25 °C (-13 °F)	10 kA		200 ms			Bulk	4.37 in (111 mm)	0.689 in (17.5 mm)	IP20; IP40		Shunt Trip	2.717 in (69 mm)	CCC; CSA; EN; IEC; UL; VDE	1	55 °C (131 °F)	Instantaneous
2800854	Phoenix Contact	Thermal Magnetic Circuit Breaker
3120-N321-P7T1-W19DG4-10A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount	240 V	50 V	10 A	Quick Connect	-30 °C (-22 °F)	5 kA			Rated breaking capacity at 50 VDC: 1000 A	Rocker				Corrosion/Moisture Resistant; IP00; IP40		Manual On/Off		CCC; CE; CSA; CQC; KTL; UL; VDE	2	60 °C (140 °F)
BA1-B0-14-450-225-C	Carling Technologies	Magnetic Circuit Breaker	Panel Mount		80 V	5 A	Screw	-40 °C (-40 °F)	7.5 kA				Handle		2 in (50.8 mm)	0.755 in (19.18 mm)	Corrosion/Moisture Resistant		Series Trip	1.73 in (43.94 mm)	CSA; UL	1	85 °C (185 °F)
W31-X2M1G-15	TE Connectivity	Thermal Circuit Breaker	Panel Mount	240 V	50 V	15 A	Screw		1 kA		6 s		Toggle		1.384 in (35.15 mm)	0.69 in (17.53 mm)	Corrosion/Environment/Moisture Resistant		Series Trip	1.6 in (40.64 mm)	CSA; UL	1
MS3320-20V	Eaton Corporation	Thermal Circuit Breaker	Panel Mount	120 V	28 V	20 A	Screw	-55 °C (-67 °F)	3.5 kA			Standard: MIL-C-5809, rated breaking capacity at 28 VDC: 6000 A	Push Button		0.781 in (19.84 mm)	0.593 in (15.06 mm)	Corrosion Resistant; Moisture Resistant	0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm)	Trip	1.03 in (26.16 mm)		1	121 °C (249.8 °F)
S204M-C25	Abb	Thermal Magnetic Circuit Breaker
S202M-C63	Abb	Thermal Magnetic Circuit Breaker
4435.0013	Schurter Ag	Thermal Circuit Breaker	Panel Mount	240 V	60 V	20 A	Quick Connect	-30 °C (-22 °F)	2 kA				Rocker	Bulk	1.417 in (36 mm)	1.142 in (29 mm)	IP40		Trip Free	1.736 in (44.1 mm)	CCC; CSA; GB; IEC; UL; VDE	2	60 °C (140 °F)
S203-D16	Abb	Thermal Magnetic Circuit Breaker
1610-21-5A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Inline/Holder		24 V	5 A	Tab/Blade	-40 °C (-40 °F)	150 A				Push To Reset		0.787 in (20 mm)	0.236 in (6 mm)	Corrosion/Moisture Resistant; IP00; IP30		Trip Free	0.945 in (24 mm)	UL	1	85 °C (185 °F)
BB3-B0-46-618-211-D	Carling Technologies	Magnetic Circuit Breaker	Panel Mount	250 V		18 A	Screw	-40 °C (-40 °F)	3 kA				Handle		2.265 in (57.53 mm)	2 in (50.8 mm)	Corrosion/Moisture Resistant		Series Trip	1.73 in (43.94 mm)	CSA; UL; VDE	3	85 °C (185 °F)
24205	Schneider Electric Sa	Thermal Magnetic Circuit Breaker

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.