Screw Circuit Breaker 304

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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
7271-3-10	Texas Instruments	Thermal Circuit Breaker	Panel Mount	120 V	30 V	10 A	Screw		3.5 kA	7271		Rated breaking capacity at 30 VDC: 4000 A			1.375 in (34.93 mm)	0.75 in (19.05 mm)		1.375 x 0.75 x 0.844 in (34.93 x 19.05 x 21.44 mm)	Trip	0.844 in (21.44 mm)
7277-2-15	Texas Instruments	Thermal Circuit Breaker	Panel Mount			15 A	Screw			7277			Push Button						Trip
3TC2-30	Texas Instruments	Thermal Circuit Breaker	Panel Mount	120 V	28 V	30 A	Screw		2 kA	3TC2		Rated breaking capacity at 28 VDC: 6000 A	Push-Pull		1.094 in (27.79 mm)	0.781 in (19.84 mm)	Corrosion Resistant	1.094 x 0.781 x 1.03 in (27.79 x 19.84 x 26.16 mm)		1.03 in (26.16 mm)
3TC2-35	Texas Instruments	Thermal Circuit Breaker	Panel Mount	120 V	28 V	35 A	Screw		2 kA	3TC2		Rated breaking capacity at 28 VDC: 6000 A	Push-Pull		1.094 in (27.79 mm)	0.781 in (19.84 mm)	Corrosion Resistant	1.094 x 0.781 x 1.03 in (27.79 x 19.84 x 26.16 mm)		1.03 in (26.16 mm)
7277-2-1	Texas Instruments	Thermal Circuit Breaker	Panel Mount			1 A	Screw			7277			Push Button						Trip
7277-2-2	Texas Instruments	Thermal Circuit Breaker	Panel Mount			2 A	Screw			7277			Push Button						Trip
7274-2-71/2	Texas Instruments	Thermal Circuit Breaker	Panel Mount	120 V	28 V	7.5 A	Screw		500 A	7274		Rated breaking capacity at 28 VDC: 2000 A	Push Button		0.75 in (19.05 mm)	0.562 in (14.27 mm)	Water Resistant	0.75 x 0.562 x 1.115 in (19.05 x 14.27 x 28.32 mm)	Trip	1.115 in (28.32 mm)
7274-2-3	Texas Instruments	Thermal Circuit Breaker	Panel Mount	120 V	28 V	3 A	Screw		800 A	7274			Push Button		0.75 in (19.05 mm)	0.562 in (14.27 mm)	Water Resistant	0.75 x 0.562 x 1.115 in (19.05 x 14.27 x 28.32 mm)	Trip	1.115 in (28.32 mm)
7274-4-3	Texas Instruments	Thermal Circuit Breaker	Panel Mount	120 V	28 V	3 A	Screw		800 A	7274			Push Button		0.75 in (19.05 mm)	0.562 in (14.27 mm)	Water Resistant	0.75 x 0.562 x 1.115 in (19.05 x 14.27 x 28.32 mm)	Trip	1.115 in (28.32 mm)
7277-2-1/2	Texas Instruments	Thermal Circuit Breaker	Panel Mount			500 mA	Screw			7277			Push Button						Trip
7270-1-5	Texas Instruments	Thermal Circuit Breaker	Panel Mount	120 V	30 V	5 A	Screw		3.5 kA	7270		Rated breaking capacity at 30 VDC: 4000 A	Toggle		1.375 in (34.93 mm)	0.75 in (19.05 mm)		1.375 x 0.75 x 0.844 in (34.93 x 19.05 x 21.44 mm)	Trip	0.844 in (21.44 mm)
2TC2-4	Texas Instruments	Thermal Circuit Breaker	Panel Mount	120 V	28 V	4 A	Screw		2.5 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)
7274-2-11/2	Texas Instruments	Thermal Circuit Breaker	Panel Mount	120 V	28 V	1.5 A	Screw		800 A	7274			Push Button		0.75 in (19.05 mm)	0.562 in (14.27 mm)	Water Resistant	0.75 x 0.562 x 1.115 in (19.05 x 14.27 x 28.32 mm)	Trip	1.115 in (28.32 mm)
7274-4-4	Texas Instruments	Thermal Circuit Breaker	Panel Mount	120 V	28 V	4 A	Screw		800 A	7274			Push Button		0.75 in (19.05 mm)	0.562 in (14.27 mm)	Water Resistant	0.75 x 0.562 x 1.115 in (19.05 x 14.27 x 28.32 mm)	Trip	1.115 in (28.32 mm)
5SY6106-7	Infineon Technologies	Thermal Circuit Breaker	DIN Rail And Panel Mount	400 V		6 A	Screw	-25 °C (-13 °F)	5 kA	5SY6106-7					2.992 in (76 mm)	0.709 in (18 mm)	Sealed	2.992 x 0.709 x 3.543 in (76 x 18 x 90 mm)		3.543 in (90 mm)	CCC; CE; GOST; IMQ; KETI; UL; VDE	1	55 °C (131 °F)
0903034	Phoenix Contact	Magnetic Circuit Breaker	DIN Rail Mount		24 V	3 A	Screw	0 °C (32 °F)			100 ms			Bulk	3.15 in (80 mm)	0.492 in (12.5 mm)	Moisture Resistant; IP20			3.15 in (80 mm)	CE; UL	1	50 °C (122 °F)	Fast
0903047	Phoenix Contact	Magnetic Circuit Breaker	DIN Rail Mount		24 V	8 A	Screw	0 °C (32 °F)						Bulk	3.15 in (80 mm)	0.492 in (12.5 mm)	IP20			3.268 in (83 mm)	CE, UL		50 °C (122 °F)
0903049	Phoenix Contact	Magnetic Circuit Breaker	DIN Rail Mount		24 V	12 A	Screw	0 °C (32 °F)						Bulk	3.15 in (80 mm)	0.492 in (12.5 mm)	IP20			3.268 in (83 mm)	CE, UL		50 °C (122 °F)
0903048	Phoenix Contact	Magnetic Circuit Breaker	DIN Rail Mount		24 V	10 A	Screw	0 °C (32 °F)						Bulk	3.15 in (80 mm)	0.492 in (12.5 mm)	IP20			3.268 in (83 mm)	CE, UL		50 °C (122 °F)
0903045	Phoenix Contact	Magnetic Circuit Breaker	DIN Rail Mount		24 V	4 A	Screw	0 °C (32 °F)						Bulk	3.15 in (80 mm)	0.492 in (12.5 mm)	IP20			3.268 in (83 mm)	CE, UL		50 °C (122 °F)
0903039	Phoenix Contact	Magnetic Circuit Breaker	DIN Rail Mount			12 A	Screw	0 °C (32 °F)						Bulk	3.15 in (80 mm)	0.492 in (12.5 mm)	IP20			3.268 in (83 mm)	CE, UL		50 °C (122 °F)
0903043	Phoenix Contact	Magnetic Circuit Breaker	DIN Rail Mount		24 V	2 A	Screw	0 °C (32 °F)						Bulk	3.15 in (80 mm)	0.492 in (12.5 mm)	IP20			3.268 in (83 mm)	CE, UL		50 °C (122 °F)
0903036	Phoenix Contact	Magnetic Circuit Breaker	DIN Rail Mount		24 V	6 A	Screw	0 °C (32 °F)			100 ms			Bulk	3.15 in (80 mm)	0.492 in (12.5 mm)	Moisture Resistant; IP20			3.15 in (80 mm)	CE; UL	1	50 °C (122 °F)	Fast
0903023	Phoenix Contact	Magnetic Circuit Breaker	DIN Rail Mount			1 A	Screw	0 °C (32 °F)						Bulk	3.15 in (80 mm)	0.492 in (12.5 mm)	IP20			3.268 in (83 mm)	CE, UL		50 °C (122 °F)
0903044	Phoenix Contact	Magnetic Circuit Breaker	DIN Rail Mount		24 V	3 A	Screw	0 °C (32 °F)						Bulk	3.15 in (80 mm)	0.492 in (12.5 mm)	IP20			3.268 in (83 mm)	CE, UL		50 °C (122 °F)
0903042	Phoenix Contact	Magnetic Circuit Breaker	DIN Rail Mount		24 V	1 A	Screw	0 °C (32 °F)						Bulk	3.15 in (80 mm)	0.492 in (12.5 mm)	IP20			3.268 in (83 mm)	CE, UL		50 °C (122 °F)
0903031	Phoenix Contact	Magnetic Circuit Breaker	DIN Rail Mount			12 A	Screw	0 °C (32 °F)						Bulk	3.15 in (80 mm)	0.492 in (12.5 mm)	IP20			3.268 in (83 mm)	CE, UL		50 °C (122 °F)
0903025	Phoenix Contact	Magnetic Circuit Breaker	DIN Rail Mount			3 A	Screw	0 °C (32 °F)						Bulk	3.15 in (80 mm)	0.492 in (12.5 mm)	IP20			3.268 in (83 mm)	CE, UL		50 °C (122 °F)
0903033	Phoenix Contact	Magnetic Circuit Breaker	DIN Rail Mount			2 A	Screw	0 °C (32 °F)						Bulk	3.15 in (80 mm)	0.492 in (12.5 mm)	IP20			3.268 in (83 mm)	CE, UL		50 °C (122 °F)
0903022	Phoenix Contact	Magnetic Circuit Breaker	DIN Rail Mount			500 mA	Screw	0 °C (32 °F)						Bulk	3.15 in (80 mm)	0.492 in (12.5 mm)	IP20			3.268 in (83 mm)	CE, UL		50 °C (122 °F)
0903040	Phoenix Contact	Magnetic Circuit Breaker	DIN Rail Mount			500 mA	Screw	0 °C (32 °F)						Bulk	3.15 in (80 mm)	0.492 in (12.5 mm)	IP20			3.268 in (83 mm)	CE, UL		50 °C (122 °F)
0903035	Phoenix Contact	Magnetic Circuit Breaker	DIN Rail Mount			4 A	Screw	0 °C (32 °F)						Bulk	3.15 in (80 mm)	0.492 in (12.5 mm)	IP20			3.268 in (83 mm)	CE, UL		50 °C (122 °F)
1010284	Phoenix Contact	Thermal Magnetic Circuit Breaker	DIN Rail Mount	240 V		50 A	Screw	-35 °C (-31 °F)	10 kA				Handle	Bulk	4.567 in (116 mm)	2.083 in (52.9 mm)			Trip	2.587 in (65.7 mm)	CUL; TUV; UL	3	70 °C (158 °F)
1010289	Phoenix Contact	Thermal Magnetic Circuit Breaker	DIN Rail Mount	240 V		40 A	Screw	-35 °C (-31 °F)	10 kA				Handle	Bulk	4.567 in (116 mm)	2.083 in (52.9 mm)			Trip	2.587 in (65.7 mm)	CUL; TUV; UL	3	70 °C (158 °F)
1020061	Phoenix Contact	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V	125 V	2 A	Screw	-35 °C (-31 °F)	5 kA				Handle	Bulk	3.205 in (81.4 mm)	1.39 in (35.3 mm)	IP20		Trip	2.587 in (65.7 mm)	CUL; TUV; UL	2	70 °C (158 °F)
1019997	Phoenix Contact	Thermal Magnetic Circuit Breaker	DIN Rail Mount	277 V	125 V	4 A	Screw	-35 °C (-31 °F)	5 kA				Handle	Bulk	3.205 in (81.4 mm)	1.39 in (35.3 mm)	IP20		Trip	2.587 in (65.7 mm)	CUL; TUV; UL	2	70 °C (158 °F)
J7MN-3R-E63	Omron	Magnetic Circuit Breaker	DIN Rail And Panel Mount	690 V		630 mA	Screw	-20 °C (-4 °F)	100 kA				Manual On/Off		3.366 in (85.5 mm)	1.772 in (45 mm)	IP20	3.366 x 1.772 x 3.858 in (85.5 x 45 x 98 mm)	Under Voltage Release	3.858 in (98 mm)	CSA; UL	3	60 °C (140 °F)
J7MN-3R-6	Omron	Magnetic Circuit Breaker	DIN Rail And Panel Mount	690 V		6 A	Screw	-20 °C (-4 °F)	100 kA				Manual On/Off		3.366 in (85.5 mm)	1.772 in (45 mm)	IP20	3.366 x 1.772 x 3.858 in (85.5 x 45 x 98 mm)	Under Voltage Release	3.858 in (98 mm)	CSA; UL	3	60 °C (140 °F)
J7MC-3R-16	Omron	Thermal Magnetic Circuit Breaker	DIN Rail Mount	440 V		16 A	Screw	-20 °C (-4 °F)	105 kA				Rotary Knob		5.118 in (130 mm)	1.772 in (45 mm)	IP20		Manual On/Off	3.728 in (94.7 mm)	CCC; CE; CUL; IEC; PSE; TUV; UL	3	60 °C (140 °F)
J7MC-3R-E63	Omron	Thermal Magnetic Circuit Breaker	DIN Rail Mount	440 V		630 mA	Screw	-20 °C (-4 °F)	100 kA				Rotary Knob		5.118 in (130 mm)	1.772 in (45 mm)	IP20		Manual On/Off	3.728 in (94.7 mm)	CCC; CE; CUL; IEC; PSE; TUV; UL	3	60 °C (140 °F)
J7MC-3R-1	Omron	Thermal Magnetic Circuit Breaker	DIN Rail Mount	440 V		1 A	Screw	-20 °C (-4 °F)	100 kA				Rotary Knob		5.118 in (130 mm)	1.772 in (45 mm)	IP20		Manual On/Off	3.728 in (94.7 mm)	CCC; CE; CUL; IEC; PSE; TUV; UL	3	60 °C (140 °F)
J7MC-3P-2E5	Omron	Thermal Magnetic Circuit Breaker	DIN Rail Mount	440 V		2.5 A	Screw	-20 °C (-4 °F)	100 kA				Rocker		5.118 in (130 mm)	1.772 in (45 mm)	IP20		Trip	2.941 in (74.7 mm)	CCC; CE; CUL; IEC; PSE; TUV; UL	3	60 °C (140 °F)
J7MC-3P-6	Omron	Thermal Magnetic Circuit Breaker	DIN Rail Mount	440 V		6.3 A	Screw	-20 °C (-4 °F)	100 kA				Rocker		5.118 in (130 mm)	1.772 in (45 mm)	IP20		Trip	2.941 in (74.7 mm)	CCC; CE; CUL; IEC; PSE; TUV; UL	3	60 °C (140 °F)
J7MC-3P-E4	Omron	Thermal Magnetic Circuit Breaker	DIN Rail Mount	440 V		400 mA	Screw	-20 °C (-4 °F)	100 kA				Rocker		5.118 in (130 mm)	1.772 in (45 mm)	IP20		Trip	2.941 in (74.7 mm)	CCC; CE; CUL; IEC; PSE; TUV; UL	3	60 °C (140 °F)
J7MC-3R-4	Omron	Thermal Magnetic Circuit Breaker	DIN Rail Mount	440 V		4 A	Screw	-20 °C (-4 °F)	100 kA				Rotary Knob		5.118 in (130 mm)	1.772 in (45 mm)	IP20		Manual On/Off	3.728 in (94.7 mm)	CCC; CE; CUL; IEC; PSE; TUV; UL	3	60 °C (140 °F)
J7MC-3R-13	Omron	Thermal Magnetic Circuit Breaker	DIN Rail Mount	440 V		13 A	Screw	-20 °C (-4 °F)	50 kA				Rotary Knob		5.118 in (130 mm)	1.772 in (45 mm)	IP20		Manual On/Off	3.728 in (94.7 mm)	CCC; CE; CUL; IEC; PSE; TUV; UL	3	60 °C (140 °F)
J7MC-3P-13	Omron	Thermal Magnetic Circuit Breaker	DIN Rail Mount	440 V		13 A	Screw	-20 °C (-4 °F)	10 kA				Rocker		5.118 in (130 mm)	1.772 in (45 mm)	IP20		Trip	2.941 in (74.7 mm)	CCC; CE; CUL; IEC; PSE; TUV; UL	3	60 °C (140 °F)
J7MC-3R-2E5	Omron	Thermal Magnetic Circuit Breaker	DIN Rail Mount	440 V		2.5 A	Screw	-20 °C (-4 °F)	100 kA				Rotary Knob		5.118 in (130 mm)	1.772 in (45 mm)	IP20		Manual On/Off	3.728 in (94.7 mm)	CCC; CE; CUL; IEC; PSE; TUV; UL	3	60 °C (140 °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.