Thermal Circuit Breaker Circuit Breaker 503

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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
1410-L210-L2F1-S02-1.5A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Through Hole Mount	240 V	28 V	1.5 A	Printed Circuit Board	-20 °C (-4 °F)	Silver	2 kA			Rated breaking capacity at 50 VDC: 200 A	Reset Slide		1.102 in (28 mm)	0.354 in (9 mm)	Corrosion Resistant	e4	1.102 x 0.354 x 0.425 in (28 x 9 x 10.8 mm)		0.425 in (10.8 mm)	CSA; UL; VDE	1	70 °C (158 °F)
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)
2909910	Phoenix Contact	Thermal Circuit Breaker
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-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)
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
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)
7274-4-21/2	Sensata Technologies	Thermal Circuit Breaker									7274-4
CMB-033-27J6N-B-D/03	Carling Technologies	Thermal Circuit Breaker	Panel Mount	250 V	32 V	3 A	Quick Connect	-10 °C (14 °F)		1 kA			Rated breaking capacity at 32 VDC: 2500 A	Push To Reset		1.154 in (29.3 mm)	0.551 in (14 mm)				Manual On/Off	1.78 in (45.2 mm)		1	60 °C (140 °F)
CMB-123-11C3N-B-A	Carling Technologies	Thermal Circuit Breaker	Panel Mount	250 V	32 V	12 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)
CMB-153-11C3N-B-A	Carling Technologies	Thermal Circuit Breaker	Panel Mount	250 V	32 V	15 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)
CMB-153-11C3N-B-A/15	Carling Technologies	Thermal Circuit Breaker	Panel Mount	250 V	32 V	15 A	Quick Connect	-10 °C (14 °F)		1 kA			Rated breaking capacity at 32 VDC: 2500 A	Push To Reset		1.154 in (29.3 mm)	0.551 in (14 mm)				Manual On/Off	1.78 in (45.2 mm)		1	60 °C (140 °F)
LRD10	Schneider Electric Sa	Thermal Circuit Breaker	Panel Mount	690 V		6 A	Screw	-20 °C (-4 °F)									1.772 in (45 mm)	IP20			Trip	2.756 in (70 mm)	ATEX; BV; CCC; CSA; DNV; EN; GL; GOST; IEC; RINA; UL		60 °C (140 °F)
MS26574-10	Eaton Corporation	Thermal Circuit Breaker	Panel Mount-Threaded	120 V	28 V	10 A	Screw			500 A			Standard: MIL-C-5809, rated breaking capacity at 28 VDC: 2000 A			0.78 in (19.81 mm)	0.593 in (15.06 mm)			0.78 x 0.593 x 1.251 in (19.81 x 15.06 x 31.78 mm)		1.251 in (31.78 mm)	MS	1
MS26574-2	Eaton Corporation	Thermal Circuit Breaker	Panel Mount-Threaded	120 V	28 V	2 A	Screw			800 A			Standard: MIL-C-5809			0.78 in (19.81 mm)	0.593 in (15.06 mm)			0.78 x 0.593 x 1.251 in (19.81 x 15.06 x 31.78 mm)		1.251 in (31.78 mm)	MS	1
QO120	Schneider Electric Sa	Thermal Circuit Breaker
QO1201021	Schneider Electric Sa	Thermal Circuit Breaker
QO1205264	Schneider Electric Sa	Thermal Circuit Breaker
QO120HM	Schneider Electric Sa	Thermal Circuit Breaker
QO120VH	Schneider Electric Sa	Thermal Circuit Breaker
TA45-ABFXF110C0-AZM13	Schurter Ag	Thermal Circuit Breaker	Panel Mount	240 V	60 V	11 A	Quick Connect	-10 °C (14 °F)		1 kA				Rocker		1.89 in (48 mm)	0.984 in (25 mm)	IP00; IP40; IP54; IP65			Manual On/Off	1.339 in (34 mm)	CSA; SEMKO; SEV; UL; VDE	2	55 °C (131 °F)
W58-XB1A4A-25	TE Connectivity	Thermal Circuit Breaker	Panel Mount	250 V	50 V	25 A	Quick Connect			1 kA		6 s		Push To Reset		1.375 in (34.93 mm)	0.66 in (16.76 mm)				Series Trip	1.375 in (34.93 mm)		1
W58-XC4C12A-30	TE Connectivity	Thermal Circuit Breaker	Panel Mount	250 V	50 V	30 A	Quick Connect			1 kA		6 s		Push To Reset		1.375 in (34.93 mm)	0.66 in (16.76 mm)				Series Trip	1.375 in (34.93 mm)		1
0700030	Phoenix Contact	Thermal Circuit Breaker									07000
0712194	Phoenix Contact	Thermal Circuit Breaker	Socket Mount	250 V	65 V	1 A	Snap On	-20 °C (-4 °F)		6 A						1.752 in (44.5 mm)	0.323 in (8.2 mm)	IP40		1.752 x 0.323 x 0.961 in (44.5 x 8.2 x 24.4 mm)		0.961 in (24.4 mm)	CCC; CSA; CUL; EAC; UL; VDE	1	60 °C (140 °F)
1278810000	Weidmueller & Kg	Thermal Circuit Breaker
1423695-7	TE Connectivity	Thermal Circuit Breaker	Panel Mount	250 V	50 V	3 A	Quick Connect			1 kA		10 s		Push To Reset		1.375 in (34.93 mm)	0.66 in (16.76 mm)				Series Trip	1.375 in (34.93 mm)		1
1658-G21-01-P13-15A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount	240 V	28 V	15 A	Quick Connect	-20 °C (-4 °F)		1 kA				Push To Reset	Bulk	1.26 in (32 mm)	0.535 in (13.6 mm)	Corrosion/Moisture Resistant; IP00; IP40			Trip Free	1.063 in (27 mm)	CSA; CUL; UL	1	60 °C (140 °F)
2-5700-IG1-P10-DD-20A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount	250 V	50 V	20 A	Quick Connect	-20 °C (-4 °F)		2 kA			Rated breaking capacity at 50 VDC: 2500 A	Push To Reset		1.142 in (29 mm)	0.571 in (14.5 mm)	Corrosion/Moisture Resistant; IP00; IP40			Trip Free	1.831 in (46.5 mm)	CQC; CSA; UL; VDE	1	60 °C (140 °F)
243211	Eaton Corporation	Thermal Circuit Breaker	DIN Rail Mount	400 V	48 V	160 mA	Snap On	-25 °C (-13 °F)		4.5 kA				Handle	Bulk	3.15 in (80 mm)	1.378 in (35 mm)	IP20			Trip	2.579 in (65.5 mm)	EN; IEC	1	75 °C (167 °F)
2CU25R	Altech	Thermal Circuit Breaker	DIN Rail Mount	480 V		25 A	Snap On	-25 °C (-13 °F)		5 kA				Toggle Handle	Bulk	3.366 in (85.5 mm)	1.378 in (35 mm)	IP20			Trip	2.362 in (60 mm)	CE, CUL, UL	2	60 °C (140 °F)
2DU4R	Altech	Thermal Circuit Breaker	DIN Rail Mount	480 V		4 A	Snap On	-25 °C (-13 °F)		10 kA				Toggle Handle	Bulk	3.366 in (85.5 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-0.5A	E-t-a Elektrotechnische Apparate	Thermal Circuit Breaker	Panel Mount	250 V	50 V	500 mA	Quick Connect	-30 °C (-22 °F)		5 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)

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.