400 V Circuit Breaker 28

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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	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
5SY4102-7	Siemens	Thermal Circuit Breaker	Panel Mount	400 V		2 A	Screw	-25 °C (-13 °F)	10 kA	5SY		Sealed Bat		3.543 in (90 mm)	0.709 in (18 mm)	IP20	3.543 x 0.709 x 2.756 in (90 x 18 x 70 mm)	Under Voltage Release	2.756 in (70 mm)	CCC; CUL; EN; GOST; IMQ; UL; VDE	1	45 °C (113 °F)	Standard
5SJ4320-7HG41	Siemens	Thermal Circuit Breaker	DIN Rail Mount	400 V	125 V	20 A	Screw And Snap On		14 kA			Handle		3.543 in (90 mm)	2.126 in (54 mm)	IP20; IP40	3.543 x 2.126 x 2.992 in (90 x 54 x 76 mm)	Trip	2.992 in (76 mm)		3
5SJ4111-7HG42	Siemens	Thermal Circuit Breaker	DIN Rail Mount	400 V	125 V	5 A	Screw And Snap On		10 kA			Handle		4.764 in (121 mm)	0.709 in (18 mm)	IP20; IP40	4.764 x 0.709 x 2.992 in (121 x 18 x 76 mm)	Trip	2.992 in (76 mm)		1
410202	Legrand	Thermal Magnetic Circuit Breaker	DIN Rail Mount	400 V		25 A	Snap On	-25 °C (-13 °F)	50 kA			Toggle Handle	Bulk	4.106 in (104.3 mm)	2.102 in (53.4 mm)			Manual On/Off	3.11 in (79 mm)	IEC	2	70 °C (158 °F)
410215	Legrand	Thermal Magnetic Circuit Breaker	DIN Rail Mount	400 V		25 A	Snap On	-25 °C (-13 °F)	50 kA			Toggle Handle	Bulk	4.106 in (104.3 mm)	3.154 in (80.1 mm)			Manual On/Off	3.11 in (79 mm)	IEC	3	70 °C (158 °F)
410218	Legrand	Thermal Magnetic Circuit Breaker	DIN Rail Mount	400 V		50 A	Snap On	-25 °C (-13 °F)	50 kA			Toggle Handle	Bulk	4.106 in (104.3 mm)	3.154 in (80.1 mm)			Manual On/Off	3.11 in (79 mm)	IEC	3	70 °C (158 °F)
410229	Legrand	Thermal Magnetic Circuit Breaker	DIN Rail Mount	400 V		32 A	Snap On	-25 °C (-13 °F)	50 kA			Toggle Handle	Bulk	4.106 in (104.3 mm)	4.205 in (106.8 mm)			Manual On/Off	3.11 in (79 mm)	IEC	4	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)
5SJ4106-7HG41	Siemens	Thermal Circuit Breaker	DIN Rail Mount	400 V		6 A	Snap On	-25 °C (-13 °F)	14 kA	5SJ4106-7HG41	ENVIRONMENTAL CHARACTERISTICS: IP20; IP40; SEALED			4.283 in (108.8 mm)	0.693 in (17.6 mm)	Environment/Moisture Resistant	4.283 x 0.693 x 2.748 in (108.8 x 17.6 x 69.8 mm)	Trip	2.748 in (69.8 mm)	CCC; CE; EAC; UL; VDE	1	55 °C (131 °F)
5SY4106-7	Siemens	Thermal Circuit Breaker	DIN Rail Mount	400 V		6 A	Snap On	-25 °C (-13 °F)	5 kA	5SY4106-7	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)
5SJ4110-7HG40	Siemens	Thermal Circuit Breaker	DIN Rail Mount	400 V		10 A	Snap On	-25 °C (-13 °F)	14 kA	5SJ4110-7HG40	ENVIRONMENTAL CHARACTERISTICS: IP20; IP40; SEALED			3.543 in (90 mm)	0.709 in (18 mm)	Environment/Moisture Resistant	3.543 x 0.709 x 2.756 in (90 x 18 x 70 mm)	Trip	2.756 in (70 mm)	CCC; CE; EAC; UL; VDE	1	55 °C (131 °F)
5SY4104-7	Siemens	Thermal Circuit Breaker	DIN Rail Mount	400 V		4 A	Snap On	-25 °C (-13 °F)	5 kA	5SY4104-7	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)	CCC; CE; EAC; GOST; IMQ; KTL; UL; VDE	1	55 °C (131 °F)
5SY4210-7	Siemens	Thermal Circuit Breaker	DIN Rail Mount	400 V		10 A	Screw And Snap On	-25 °C (-13 °F)	5 kA		Environmental Characteristics: Sealed			3.535 in (89.8 mm)	1.386 in (35.2 mm)	Environment/Moisture Resistant; IP20	3.535 x 1.386 x 2.992 in (89.8 x 35.2 x 76 mm)	Trip	2.992 in (76 mm)	CE; CCC; IMQ; RCM; UL; VDE	2	55 °C (131 °F)
5SY4213-8	Siemens	Thermal Circuit Breaker	DIN Rail Mount	400 V	400 V	13 A	Snap On	-25 °C (-13 °F)	5 kA		Interrupting current max(DC): 10000 A			3.535 in (89.8 mm)	1.386 in (35.2 mm)		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; GOST; IMQ; UL; VDE	2	55 °C (131 °F)
5SY4208-8	Siemens	Thermal Circuit Breaker	DIN Rail Mount	400 V	400 V	8 A	Snap On	-25 °C (-13 °F)	5 kA		Interrupting current max(DC): 10000 A			3.535 in (89.8 mm)	1.386 in (35.2 mm)		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; GOST; IMQ; UL; VDE	2	55 °C (131 °F)
5SY4120-7	Siemens	Thermal Circuit Breaker	DIN Rail Mount	400 V		20 A	Snap On	-25 °C (-13 °F)	5 kA					3.535 in (89.8 mm)	0.693 in (17.6 mm)	IP20; Sealed	3.535 x 0.693 x 3.008 in (89.8 x 17.6 x 76.4 mm)	Trip	3.008 in (76.4 mm)	CCC; CE; IMQ; RCM; UL; VDE	1	55 °C (131 °F)
5SJ4218-7HG41	Siemens	Thermal Circuit Breaker	DIN Rail Mount	400 V		15 A	Snap On	-25 °C (-13 °F)	14 kA		Environmental Characteristics: Sealed			4.283 in (108.8 mm)	1.386 in (35.2 mm)	Environment Resistant; IP20; IP40	4.283 x 1.386 x 3.031 in (108.8 x 35.2 x 77 mm)	Trip	3.031 in (77 mm)	CCC; CE; UL; VDE	2	55 °C (131 °F)
5SJ4106-6HG40	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	400 V	60 V	6 A	Snap On	-25 °C (-13 °F)			Interrupting current max: 14000 A as per UL/CSA	Handle		3.535 in (89.8 mm)	0.693 in (17.6 mm)	IP20; IP40; Sealed	3.535 x 0.693 x 3.031 in (89.8 x 17.6 x 77 mm)	Trip	3.031 in (77 mm)	CCC; CE; UL; VDE	1	55 °C (131 °F)
5SY4302-8	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	400 V		2 A	Snap On		10 kA					3.535 in (89.8 mm)	2.079 in (52.8 mm)	IP20	3.535 x 2.079 x 2.992 in (89.8 x 52.8 x 76 mm)	Trip	2.992 in (76 mm)	CCC; CE; IMQ; RCM; UL; VDE	3
5SY4202-8	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	400 V		2 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
5SY4301-7	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	400 V		1 A	Snap On		10 kA					3.535 in (89.8 mm)	2.079 in (52.8 mm)	IP20	3.535 x 2.079 x 2.992 in (89.8 x 52.8 x 76 mm)	Trip	2.992 in (76 mm)	CCC; CE; IMQ; KC; RCM; UL; VDE	3
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
5SY4210-8	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	400 V		10 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
5SY4201-8	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	400 V		1 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
5SY4216-8	Siemens	Thermal Magnetic Circuit Breaker	DIN Rail Mount	400 V		16 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
5SY4204-7	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; KC; RCM; UL; VDE	2
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
410151	Legrand	Thermal Magnetic Circuit Breaker	DIN Rail Mount	400 V		32 A	Snap On	-25 °C (-13 °F)	50 kA			Toggle Handle	Bulk	4.106 in (104.3 mm)	2.102 in (53.4 mm)			Manual On/Off	3.11 in (79 mm)	IEC	2	70 °C (158 °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.