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	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
2909902	Phoenix Contact	Thermal Circuit Breaker
2CDS272001R0064	Abb	Thermal Magnetic Circuit Breaker									2CDS272001R0064
5SJ4163-6HG40	Siemens	Equipment Leakage Circuit Breaker						-25 °C (-13 °F)																	55 °C (131 °F)
W28-XQ1A-5	TE Connectivity	Thermal Circuit Breaker	Panel Mount	250 V	32 V	5 A	Quick Connect			1 kA		2.2 s		Push To Reset		0.76 in (19.31 mm)	0.76 in (19.31 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
GV2P14	Schneider Electric Sa	Thermal Magnetic Circuit Breaker	DIN Rail And Panel Mount	690 V		10 A	Screw And Snap On	-20 °C (-4 °F)		6 kA				Rotary Handle	Bulk	3.504 in (89 mm)	1.772 in (45 mm)	IK04; IP20			Trip	3.819 in (97 mm)	ATEX; BV; CCC; CSA; DNV-GL; EAC; EN; IEC; LROS; RINA; UL	3	60 °C (140 °F)
XT1NU3100AFF000XXX	Abb	Thermal Magnetic Circuit Breaker	DIN Rail Mount	347 V		100 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
MS25244-10	Sensata Technologies	Thermal Circuit Breaker	Panel Mount	120 V	30 V	10 A	Screw			3.5 kA		1 s	Rated breaking capacity at 30 VDC: 6000 A	Push-Pull		1.094 in (27.79 mm)	0.75 in (19.05 mm)	Corrosion/Moisture Resistant		1.094 x 0.75 x 1.49 in (27.79 x 19.05 x 37.85 mm)	Trip Free	1.49 in (37.85 mm)		1
W33-S4B1Q-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
W58-XB1A4A-5	TE Connectivity	Thermal Circuit Breaker	Panel Mount	250 V	50 V	5 A	Quick Connect			1 kA		6 s	Rated breaking capacity at 50 VDC: 2000 A	Push To Reset						1.375 x 0.66 x 1.375 in (34.93 x 16.76 x 34.93 mm)	Series Trip			1
2TC2-1	Texas Instruments	Thermal Circuit Breaker	Panel Mount	120 V	28 V	1 A	Screw			3.5 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)
4404.0022	Schurter Ag	Thermal Circuit Breaker	Panel Mount	240 V	48 V	10 A	Quick Connect	-5 °C (23 °F)	Tin Silver	2 kA				Reset Type	Bulk	0.748 in (19 mm)	0.748 in (19 mm)	IP40	e2		Manual On/Off	1.421 in (36.1 mm)	CCC; CSA; UL; GB; IEC; UL; VDE	1	60 °C (140 °F)
4435.0002	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)
5SY4204-8	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	400 V		4 A	Snap On			10 kA						3.535 in (89.8 mm)	1.386 in (35.2 mm)	IP20		3.535 x 1.386 x 2.992 in (89.8 x 35.2 x 76 mm)	Trip	2.992 in (76 mm)	CCC; CE; IMQ; RCM; UL; VDE	2
W68-X2Q12-5	TE Connectivity	Magnetic Circuit Breaker	Panel Mount	277 V		5 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
2907566	Phoenix Contact	Thermal Magnetic Circuit Breaker									2907566
W67-X2Q12-15	TE Connectivity	Magnetic Circuit Breaker	Panel Mount	277 V		15 A	Quick Connect	-40 °C (-40 °F)		5 kA		2.2 s		Toggle		2 in (50.8 mm)	0.75 in (19.05 mm)	Fungus Resistant; Moisture Resistant		2 x 0.75 x 1.64 in (50.8 x 19.05 x 41.66 mm)	Series Trip	1.64 in (41.66 mm)	CSA; UL	1	85 °C (185 °F)	Standard
W67-X2Q1215	TE Connectivity	Magnetic Circuit Breaker	Panel Mount			15 A	Quick Connect					2.2 s		Toggle							Series Trip			1
1135753	Phoenix Contact	Thermal Circuit Breaker
AA1-B0-34-615-3B1-C	Carling Technologies	Magnetic Circuit Breaker	Panel Mount	277 V	80 V	15 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)
SU201M-K15	Abb	Thermal Magnetic Circuit Breaker
SU202M-K15	Abb	Thermal Magnetic Circuit Breaker
1620-2-5A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount		12 V	5 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)
5SY6114-7	Siemens	Thermal Circuit Breaker	DIN Rail Mount	400 V	60 V	14 A	Snap On	-25 °C (-13 °F)		5 kA				Toggle	Bulk	3.543 in (90 mm)	0.709 in (18 mm)	IP20			Trip	2.992 in (76 mm)	CSA; EN; UL	1	55 °C (131 °F)
CMB-053-27G3N-B-A	Carling Technologies	Thermal Circuit Breaker	Panel Mount	250 V	32 V	5 A	Quick Connect	-10 °C (14 °F)		1 kA				Push To Reset		1.154 in (29.3 mm)	0.551 in (14 mm)				Series Trip	1.78 in (45.2 mm)	CSA; CE; CUL; TUV; UL	1	60 °C (140 °F)
3RV1342-4FC10	Siemens	Magnetic Circuit Breaker	DIN Rail Mount	690 V		40 A	Screw And Snap On	-20 °C (-4 °F)		12 kA				Rotary Handle		6.496 in (165 mm)	2.756 in (70 mm)	IP20		6.496 x 2.756 x 6.85 in (165 x 70 x 174 mm)	Trip	6.85 in (174 mm)		3	60 °C (140 °F)
3RV2011-4AA10	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	690 V		16 A	Snap On	-20 °C (-4 °F)		2 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)
MS14154-7-1/2	Sensata Technologies	Thermal Circuit Breaker	Panel Mount-Threaded	120 V		7.5 A	Screw			2 kA				Push-Pull		1.84 in (46.74 mm)	0.781 in (19.84 mm)	Corrosion Resistant		1.84 x 0.781 x 1.381 in (46.74 x 19.84 x 35.08 mm)	Trip Free	1.381 in (35.08 mm)		1
SU202M-K10	Abb	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V	96 V	10 A	Screw And Snap On	-25 °C (-13 °F)		10 kA		200 ms			Bulk	4.37 in (111 mm)	1.378 in (35 mm)	IP20; IP40			Shunt Trip	2.717 in (69 mm)	CCC; CSA; EN; IEC; UL; VDE	2	55 °C (131 °F)	Instantaneous
1110-F112-P1M1-5A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount	250 V	50 V	5 A	Quick Connect	-20 °C (-4 °F)		40 A			Rated breaking capacity at 50 VDC: 50 A	Push Button		0.748 in (19 mm)	0.748 in (19 mm)	Corrosion Resistant; IP00; IP40; IP64			Tease-Free And Trip-Free	2.008 in (51 mm)	CSA; CUL; EN; UL; VDE	1	60 °C (140 °F)
3RV2021-4CA10	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	690 V		22 A	Snap On	-20 °C (-4 °F)		2 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)	Instantaneous
AD1-B2-26-610-143-C	Carling Technologies	Magnetic Circuit Breaker	Panel Mount	277 V		10 A	Quick Connect	-40 °C (-40 °F)		5 kA			Standards: MIL-PRF-55629, MIL-STD-202	Rocker		2.156 in (54.76 mm)	0.745 in (18.92 mm)	Corrosion/Moisture Resistant			Series Trip	1.64 in (41.66 mm)	CSA; UL	1	85 °C (185 °F)
AP12-1-51-502	Sensata Technologies	Magnetic Circuit Breaker	Panel Mount		50 V	5 A	Solder Hook	-40 °C (-40 °F)		1 kA				Toggle		1.562 in (39.67 mm)	1.281 in (32.53 mm)	Corrosion Resistant; Sealed			Trip Free	1.78 in (45.21 mm)		2	100 °C (212 °F)
3RV2811-1HD10	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	690 V		8 A	Screw And Snap On	-20 °C (-4 °F)		4 kA				Rotary Handle		5.669 in (144 mm)	1.772 in (45 mm)	IP00; IP20		5.669 x 1.772 x 3.819 in (144 x 45 x 97 mm)	Trip	3.819 in (97 mm)		3	60 °C (140 °F)
AA1-B0-34-625-3B1-C	Carling Technologies	Magnetic Circuit Breaker	Panel Mount	277 V	80 V	25 A	Screw	-40 °C (-40 °F)		5 kA				Toggle		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)
MS14154-10	Defense Logistics Agency	Thermal Circuit Breaker	Panel Mount-Threaded			10 A	Screw	-55 °C (-67 °F)						Push-Pull		1.84 in (46.74 mm)	0.781 in (19.84 mm)			1.84 x 0.781 x 1.381 in (46.74 x 19.84 x 35.08 mm)	Trip Free	1.381 in (35.08 mm)	MIL-C-5809	3	71 °C (159.8 °F)
2TC2-25	Texas Instruments	Thermal Circuit Breaker	Panel Mount	120 V	28 V	25 A	Screw			1.8 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)
3120-N321-P7T1-W19DG4-20A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount	240 V	50 V	20 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)
3120-N321-P7T1-W19DG4-5A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount	240 V	50 V	5 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)
3TC7-10	Sensata Technologies	Thermal Circuit Breaker									3TC7
SU201M-K5	Abb	Thermal Magnetic Circuit Breaker
W91-X112-30	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)	0.75 in (19.05 mm)				Series Trip	1.845 in (46.86 mm)		1	85 °C (185 °F)
W91-X11230	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)	0.75 in (19.05 mm)				Series Trip	1.845 in (46.86 mm)		1	85 °C (185 °F)
1020056	Phoenix Contact	Thermal Magnetic Circuit Breaker
3120-N321-P7T1-W19DG4-15A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount	240 V	50 V	15 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)
FAZ-C5/1-NA-SP	Eaton Corporation	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		5 A	Snap On			10 kA				Toggle							Manual On/Off			1
S201M-C20	Abb	Thermal Magnetic Circuit Breaker
0712217	Phoenix Contact	Thermal Circuit Breaker	Panel Mount	250 V	65 V	2 A	Quick Connect	-20 °C (-4 °F)		12 A				Push To Reset	Bulk	0.961 in (24.4 mm)	0.323 in (8.2 mm)	IP40			Trip	1.752 in (44.5 mm)	CCC; CSA; CUL; EAC; UL; VDE	1	60 °C (140 °F)
0916609	Phoenix Contact	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.