Circuit Breakers

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Mfr Part #	Quantity Available	Price	Tariff Status	Series	Package	Product Status	Mounting Type	Breaker Type	Current Rating (Amps)	Voltage Rating - AC	Voltage Rating - DC	Actuator Type	Number of Poles	Illumination	Illumination Voltage (Nominal)	Approval Agency
5SY43107 SUP PTOR 5SY4 3P 480V 10A 5K C-T Siemens	4 In Stock	1 : $170.28000 Bulk	-	5SY4	Bulk	Active	DIN Rail	-	10A	400 V	72 V	Lever	3	None	-	CCC, CE, IMQ, RCM, UR, VDE
5SY41036 CIRCUIT BREAKER 10KA 1POLE B3 Siemens	5 In Stock	1 : $59.12000 Bulk	-	5SY4	Bulk	Active	DIN Rail	-	-	400 V	72 V	Lever	1	None	-	CCC, EAC, IMQ, UR, VDE
5SY41048 SUP PTOR 5SY4 1P 240V 4A 7.5K D- Siemens	14 In Stock	1 : $73.87000 Box	-	SENTRON	Box	Active	DIN Rail	-	4A	400 V	72 V	Lever	1	None	-	CCC, CE, EAC, UR, VDE
5SY41038 SUP PTOR 5SY4 1P 240V 3A 7.5K D- Siemens	11 In Stock	1 : $73.87000 Box	-	SENTRON	Box	Active	DIN Rail	-	3A	400 V	72 V	Lever	1	None	-	CCC, CE, EAC, UR, VDE
5SY41108 SUP PTOR 5SY4 1P 240V 10A 7.5K D Siemens	9 In Stock	1 : $73.87000 Bulk	-	5SY4	Bulk	Active	DIN Rail	-	10A	400 V	72 V	Lever	1	None	-	CB, CCC, CSA, IMQ, UR, VDE
5SY41028 SUP PTOR 5SY4 1P 240V 2A 7.5K D- Siemens	4 In Stock	1 : $73.87000 Bulk	-	5SY4	Bulk	Active	DIN Rail	-	2A	400 V	72 V	Lever	1	None	-	CB, CCC, CSA, IMQ, UR, VDE
5SY41068 SUP PTOR 5SY4 1P 240V 6A 7.5K D- Siemens	4 In Stock	1 : $73.87000 Bulk	-	5SY4	Bulk	Active	DIN Rail	-	6A	400 V	72 V	Lever	1	None	-	CB, CCC, CSA, IMQ, UR, VDE
5SY41018 SUP PTOR 5SY4 1P 240V 1A 7.5K D- Siemens	4 In Stock	1 : $73.87000 Box	-	SENTRON	Box	Active	DIN Rail	-	1A	400 V	72 V	Lever	1	None	-	CCC, CE, EAC, UR, VDE
5SY41088 SUP PTOR 5SY4 1P 240V 8A 7.5K D- Siemens	3 In Stock	1 : $73.87000 Box	-	SENTRON	Box	Active	DIN Rail	-	8A	400 V	72 V	Lever	1	None	-	CCC, CE, EAC, UR, VDE
5SY41117 SUP PTOR 5SY4 1P 240V 5A 7.5K C- Siemens	4 In Stock	1 : $63.03000 Bulk	-	5SY4	Bulk	Active	DIN Rail	-	5A	400 V	72 V	Lever	1	None	-	CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY41107 SUP PTOR 5SY4 1P 240V 10A 7.5K C Siemens	2 In Stock	1 : $63.03000 Bulk	-	5SY4	Bulk	Active	DIN Rail	-	10A	400 V	-	Lever	1	None	-	CE, EAC, IMQ, UL, VDE
5SY42047 SUP PTOR 5SY4 2P 480V 4A 5K C-TR Siemens	2 In Stock	1 : $115.58000 Bulk	-	5SY4	Bulk	Active	DIN Rail	-	4A	400 V	72 V	Lever	2	None	-	CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY42067 SUP PTOR 5SY4 2P 480V 6A 5K C-TR Siemens	2 In Stock	1 : $118.03000 Bulk	-	5SY4	Bulk	Active	DIN Rail	-	6A	400 V	72 V	Lever	2	None	-	CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY42107 SUP PTOR 5SY4 2P 480V 10A 5K C-T Siemens	2 In Stock	1 : $118.03000 Bulk	-	5SY4	Bulk	Active	DIN Rail	-	10A	400 V	72 V	Lever	2	None	-	CCC, CE, IMQ, RCM, UR, VDE
5SY43307 SUP PTOR 5SY4 3P 480V 30A 5K C-T Siemens	2 In Stock	1 : $170.28000 Bulk	-	5SY4	Bulk	Active	DIN Rail	-	30A	400 V	72 V	Lever	3	None	-	CCC, CE, EAC, RCM, UR, VDE
5SY43408 SUP PTOR 5SY4 3P 480V 40A 5K D-T Siemens	2 In Stock	1 : $170.28000 Bulk	-	5SY4	Bulk	Active	DIN Rail	-	40A	400 V	72 V	Lever	3	None	-	CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY43258 SUP PTOR 5SY4 3P 480V 25A 5K D-T Siemens	2 In Stock	1 : $170.28000 Bulk	-	5SY4	Bulk	Active	DIN Rail	-	25A	400 V	72 V	Lever	3	None	-	CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY41208 SUP PTOR 5SY4 1P 240V 20A 7.5K D Siemens	1 In Stock	1 : $73.87000 Box	-	SENTRON	Box	Active	DIN Rail	-	20A	400 V	72 V	Lever	1	None	-	CCC, CE, EAC, UR, VDE
5SY41168 SUP PTOR 5SY4 1P 240V 16A 7.5K D Siemens	1 In Stock	1 : $73.87000 Box	-	SENTRON	Box	Active	DIN Rail	-	16A	400 V	72 V	Lever	1	None	-	CCC, CE, EAC, UR, VDE
5SY43638 SUP PTOR 5SY4 3P 480V 63A 5K D-T Siemens	0 In Stock Check Lead Time	1 : $199.55000 Box	-	SENTRON	Box	Active	DIN Rail	-	63A	400 V	72 V	Lever	3	None	-	CCC, CE, EAC, UR, VDE
5SY43508 SUP PTOR 5SY4 3P 480V 50A 5K D-T Siemens	1 In Stock	1 : $251.76000 Box	-	SENTRON	Box	Active	DIN Rail	-	50A	400 V	72 V	Lever	3	None	-	CCC, CE, EAC, UR, VDE
5SY41067 SUP PTOR 5SY4 1P 240V 6A 7.5K C- Siemens	1 In Stock	1 : $63.03000 Bulk	-	5SY4	Bulk	Active	DIN Rail	-	6A	277 V	-	Lever	1	None	-	CSA C22.2 No 235, UL1077
5SY41187 SUP PTOR 5SY4 1P 240V 15A 7.5K C Siemens	1 In Stock	1 : $63.03000 Bulk	-	5SY4	Bulk	Active	DIN Rail	-	15A	400 V	72 V	Lever	1	None	-	CCC, CE, EAC, RCM, UR, VDE
5SY41037 MINIATURE CURCIUT BREAKER, 230/4 Siemens	1 In Stock	1 : $63.03000 Bulk	-	5SY4	Bulk	Active	DIN Rail	-	3A	400 V	72 V	Lever	1	None	-	CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY41017 SUP PTOR 5SY4 1P 240V 1A 7.5K C- Siemens	1 In Stock	1 : $63.03000 Bulk	-	5SY4	Bulk	Active	DIN Rail	-	1A	400 V	72 V	Lever	1	None	-	CCC, CE, EAC, IMQ, RCM, UR, VDE

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A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit. Its basic function is to interrupt current flow after a fault is detected. Unlike a fuse, which operates once and then must be replaced, a circuit breaker can be reset (either manually or automatically) to resume normal operation.