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
1610-21-15A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Inline/Holder		32 V	15 A	Tab/Blade	-40 °C (-40 °F)	150 A				Push To Reset		0.787 in (20 mm)	0.236 in (6 mm)	Corrosion Resistant; IP00; IP30; IP54		Trip Free	0.945 in (24 mm)	UL	1	85 °C (185 °F)
1658-G21-02-P10-20A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Inline/Holder	240 V	28 V	20 A	Tab/Blade	-20 °C (-4 °F)	200 A				Manual Reset		1.26 in (32 mm)	0.551 in (14 mm)			Trip Free	1.563 in (39.7 mm)	CSA; CUL; UL; VDE	1	60 °C (140 °F)
243304	Eaton Corporation	Thermal Circuit Breaker	DIN Rail Mount	400 V	48 V	40 A	Snap On	-25 °C (-13 °F)	4.5 kA				Handle	Bulk	3.15 in (80 mm)	2.067 in (52.5 mm)	IP20		Trip	2.579 in (65.5 mm)	EN; IEC	3	75 °C (167 °F)
28600	Schneider Electric Sa	Thermal Magnetic Circuit Breaker
2909910	Phoenix Contact	Thermal Circuit Breaker
2CDS251001R0161	Abb	Thermal Magnetic Circuit Breaker
2CDS251001R0971	Abb	Thermal Magnetic Circuit Breaker
2CDS251103R0161	Abb	Thermal Magnetic Circuit Breaker
2CDS272001R0105	Abb	Thermal Magnetic Circuit Breaker
2CSR255051R1325	Abb	Equipment Leakage Circuit Breaker
2CU10L	Altech	Thermal Magnetic Circuit Breaker	DIN Rail Mount	480 V		10 A	Snap On	-25 °C (-13 °F)	10 kA				Toggle Handle	Bulk	4.291 in (109 mm)	1.378 in (35 mm)	IP20		Trip	2.362 in (60 mm)	CE, CUL, UL	2	60 °C (140 °F)
2DU8L	Altech	Thermal Magnetic Circuit Breaker	DIN Rail Mount	480 V		8 A	Snap On	-25 °C (-13 °F)	10 kA				Toggle Handle	Bulk	4.291 in (109 mm)	1.378 in (35 mm)	IP20		Trip	2.362 in (60 mm)	CE, CUL, UL	2	60 °C (140 °F)
3120-F324-P7T1-W01D-10A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount	250 V	50 V	10 A	Quick Connect	-30 °C (-22 °F)	100 A				Rocker		2.205 in (56 mm)	0.827 in (21 mm)	Corrosion Resistant	2.205 x 0.827 x 1.299 in (56 x 21 x 33 mm)	Manual On/Off	1.299 in (33 mm)	CCC; CSA; UL; VDE	2	60 °C (140 °F)
3120-N311-P7T1-W01D-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		2.22 in (56.4 mm)	0.984 in (25 mm)	Corrosion Resistant; IP00; IP40		Trip Free	1.299 in (33 mm)	CCC; CSA; KC; UL; VDE	1	60 °C (140 °F)
3120-N311-P7T1-W02D-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		2.22 in (56.4 mm)	0.984 in (25 mm)	Corrosion Resistant; IP00; IP40		Trip Free	1.299 in (33 mm)	CCC; CSA; KC; UL; VDE	1	60 °C (140 °F)
3120-N311-P7T1-W02D-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		2.22 in (56.4 mm)	0.984 in (25 mm)	Corrosion Resistant; IP00; IP40		Trip Free	1.299 in (33 mm)	CCC; CSA; KC; UL; VDE	1	60 °C (140 °F)
3120-N321-P7T1-W01D-15A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker
3120-N321-P7T1-W02D-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		2.22 in (56.4 mm)	0.984 in (25 mm)	Corrosion Resistant; IP00; IP40		Trip Free	1.299 in (33 mm)	CCC; CSA; KC; UL; VDE	2	60 °C (140 °F)
3120-N323-P7T1-W01D-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		2.22 in (56.4 mm)	0.984 in (25 mm)	Corrosion Resistant; IP00; IP40		Trip Free	1.299 in (33 mm)	CCC; CSA; KC; UL; VDE	2	60 °C (140 °F)
3120-N323-P7T1-W02D-15A	E-t-a Elektrotechnische Apparate	Thermal Magnetic Circuit Breaker
3120-N324-P7T1-W19DG3-20A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount	115 V		20 A	Quick Connect	-30 °C (-22 °F)	5 kA			Rated breaking capacity at 50 VDC: 1000 A	Rocker				Corrosion Resistant; IP00; IP40		Manual On/Off		CCC; CE; CSA; CQC; KTL; UKCA; UL; VDE	2	60 °C (140 °F)
3120-N32A-H7T1-W12LY4-2A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount	230 V		2 A	Quick Connect	-30 °C (-22 °F)	5 kA			Rated breaking capacity at 50 VDC: 1000 A	Rocker				Corrosion Resistant; IP00; IP40		Manual On/Off		CCC; CE; CSA; CQC; KTL; UKCA; UL; VDE	2	60 °C (140 °F)
3RV1011-0GA10	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	690 V		630 mA	Snap On	-20 °C (-4 °F)	100 kA			Interrupting current max at 450 VDC: 10000 A	Rocker		3.543 in (90 mm)	1.772 in (45 mm)	IP20	3.543 x 1.772 x 2.953 in (90 x 45 x 75 mm)	Trip	2.953 in (75 mm)	ATEX; CCC; CE; CSA; EAC; IECEX; UL; VDE	3	60 °C (140 °F)
3RV1031-4HA10	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	690 V		50 A	Snap On	-20 °C (-4 °F)	4 kA						5.512 in (140 mm)	2.165 in (55 mm)	IP20	5.512 x 2.165 x 5.866 in (140 x 55 x 149 mm)	Trip	5.866 in (149 mm)	ATEX; CCC; CE; CSA; EAC; IECEX; UL; VDE	3	60 °C (140 °F)
3RV2011-1DA20	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		4.173 in (106 mm)	1.772 in (45 mm)	IP20	4.173 x 1.772 x 3.815 in (106 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)
3RV2011-1GA20	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	690 V		6.3 A	Snap On	-20 °C (-4 °F)	4 kA				Handle		4.173 in (106 mm)	1.772 in (45 mm)	IP20	4.173 x 1.772 x 3.815 in (106 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
3RV2021-1BA10	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	690 V		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)	Instantaneous
412-K14-N2-7.5A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount		28 V	7.5 A	Screw	-55 °C (-67 °F)	6 kA				Push-Pull		1.142 in (29 mm)	0.571 in (14.5 mm)	Corrosion/Moisture Resistant; IP00; IP40		Trip Free	1.811 in (46 mm)	CSA; UL	1	75 °C (167 °F)
413-K14-LN2-60A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount	115 V	28 V	60 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)
413-K54-N2-70A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount		28 V	70 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		Trip Free	1.929 in (49 mm)	CSA; UL	1	75 °C (167 °F)
4130-G211-K4M1-50A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount	240 V	50 V	50 A	Screw	-30 °C (-22 °F)	800 A				Push To Reset		1.26 in (32 mm)	0.709 in (18 mm)	Corrosion Resistant; IP00; IP40	1.26 x 0.709 x 1.969 in (32 x 18 x 50 mm)	Tease-Free And Trip-Free	1.969 in (50 mm)	CBE; CSA; EN; IEC; UL; VDE	1	60 °C (140 °F)	Medium
422142	Legrand	Thermal Magnetic Circuit Breaker	Panel Mount	400 V		320 A	Screw	-25 °C (-13 °F)	36 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)
4230-T130-K0CE-15A	E-t-a Elektrotechnische Apparate	Thermal Magnetic Circuit Breaker	DIN Rail Mount	480 V		15 A	Snap On	-35 °C (-31 °F)	5 kA				Toggle Handle		3.228 in (82 mm)	2.083 in (52.9 mm)	Corrosion Resistant; IP20		Trip Free	2.37 in (60.2 mm)	UL; TUV	3	70 °C (158 °F)
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)
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)
4400.0010	Schurter Ag	Thermal Circuit Breaker	Panel Mount-Threaded	240 V	48 V	3 A	Quick Connect	-5 °C (23 °F)	2 kA				Reset Button	Bulk	0.748 in (19 mm)	0.433 in (11 mm)	IP40		Trip Free	1.976 in (50.2 mm)	CCC; CSA; IEC; UL; VDE; GB	1	60 °C (140 °F)
482-G111-K1M1-A1S1-50A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount	115 V	28 V	50 A	Screw	-55 °C (-67 °F)	5 kA				Push Button		1.22 in (31 mm)	0.709 in (18 mm)	Corrosion/Moisture Resistant; IP00; IP40		Trip Free	1.89 in (48 mm)	BW; CSA; UL	1	75 °C (167 °F)
482-G111-K1M1-A1S1-5A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount	115 V	28 V	5 A	Screw	-55 °C (-67 °F)	5 kA				Push Button		1.22 in (31 mm)	0.709 in (18 mm)	Corrosion/Moisture Resistant; IP00; IP40		Trip Free	1.89 in (48 mm)	BW; CSA; UL	1	75 °C (167 °F)
483-G411-K1M1-A1S0Z--5A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount	115 V	28 V	5 A	Screw	-55 °C (-67 °F)	2 kA			Rated breaking capacity at 28 VDC: 6000 A	Push-Pull		0.768 in (19.5 mm)	0.559 in (14.2 mm)	IP40; IP00		Tease-Free And Trip-Free	1.22 in (31 mm)		1	125 °C (257 °F)
5SU1356-7KK13	Siemens	Equipment Leakage Circuit Breaker	DIN Rail Mount	230 V		13 A	Screw And Snap On		6 kA				Handle		3.543 in (90 mm)	1.417 in (36 mm)	IP20	3.543 x 1.417 x 3.031 in (90 x 36 x 77 mm)	Trip	3.031 in (77 mm)		2	70 °C (158 °F)
5SU1654-7KK16	Siemens	Equipment Leakage Circuit Breaker	DIN Rail Mount	230 V		16 A	Screw And Snap On		10 kA				Handle		3.543 in (90 mm)	1.417 in (36 mm)	IP20	3.543 x 1.417 x 3.031 in (90 x 36 x 77 mm)	Trip	3.031 in (77 mm)		2	70 °C (158 °F)
5SV3314-6	Siemens	Equipment Leakage Circuit Breaker	DIN Rail Mount	230 V		40 A	Screw And Snap On		10 kA				Handle		3.543 in (90 mm)	1.417 in (36 mm)	IP20	3.543 x 1.417 x 2.756 in (90 x 36 x 70 mm)	Trip	2.756 in (70 mm)		2	70 °C (158 °F)
5SV3314-6KK01	Siemens	Equipment Leakage Circuit Breaker	DIN Rail Mount	230 V		40 A	Screw And Snap On		10 kA				Handle		3.543 in (90 mm)	1.417 in (36 mm)	IP20	3.543 x 1.417 x 2.756 in (90 x 36 x 70 mm)	Trip	2.756 in (70 mm)		2	70 °C (158 °F)
5SY4103-8	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V		3 A	Snap On	-25 °C (-13 °F)	5 kA				Handle		3.543 in (90 mm)	0.709 in (18 mm)		3.543 x 0.709 x 2.992 in (90 x 18 x 76 mm)	Trip	2.992 in (76 mm)	CE; CSA; EN; UL	1	45 °C (113 °F)
5SY4206-8	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	400 V		6 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
7274-4-21/2	Sensata Technologies	Thermal Circuit Breaker								7274-4
9-1393253-2	TE Connectivity	Magnetic Circuit Breaker	Panel Mount			30 A	Quick Connect				2.2 s		Toggle						Series Trip			3
9-1393254-7	TE Connectivity	Magnetic Circuit Breaker	Panel Mount	277 V		30 A	Stud	-40 °C (-40 °F)	5 kA		9 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)

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.