Circuit Breakers

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Mfr Part #	Quantity Available	Price	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
5SY41036 CIRCUIT BREAKER 10KA 1POLE B3 Siemens	4 In Stock	1 : $93.08000 Bulk	5SY4	Bulk	Active	DIN Rail	-	-	400 V	72 V	Lever	1	None	-	CCC, EAC, IMQ, UR, VDE
5SY41108 SUP PTOR 5SY4 1P 240V 10A 7.5K D Siemens	8 In Stock	1 : $116.19000 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 : $116.19000 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 : $116.19000 Bulk	5SY4	Bulk	Active	DIN Rail	-	6A	400 V	72 V	Lever	1	None	-	CB, CCC, CSA, IMQ, UR, VDE
5SY41117 SUP PTOR 5SY4 1P 240V 5A 7.5K C- Siemens	5 In Stock	1 : $99.15000 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	4 In Stock	1 : $99.15000 Bulk	5SY4	Bulk	Active	DIN Rail	-	10A	400 V	-	Lever	1	None	-	CE, EAC, IMQ, UL, VDE
5SY41067 SUP PTOR 5SY4 1P 240V 6A 7.5K C- Siemens	2 In Stock	1 : $99.15000 Bulk	5SY4	Bulk	Active	DIN Rail	-	6A	277 V	-	Lever	1	None	-	CSA C22.2 No 235, UL1077
5SY41167 SUP PTOR 5SY4 1P 240V 16A 7.5K C Siemens	2 In Stock	1 : $99.15000 Bulk	5SY4	Bulk	Active	DIN Rail	-	16A	277 V	-	Lever	1	None	-	CSA C22.2 No 235, UL1077
5SY41047 SUP PTOR 5SY4 1P 240V 4A 7.5K C- Siemens	2 In Stock	1 : $99.15000 Bulk	5SY4	Bulk	Active	DIN Rail	-	4A	400 V	72 V	Lever	1	None	-	CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY42067 SUP PTOR 5SY4 2P 480V 6A 5K C-TR Siemens	2 In Stock	1 : $185.68000 Bulk	5SY4	Bulk	Active	DIN Rail	-	6A	400 V	72 V	Lever	2	None	-	CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY43107 SUP PTOR 5SY4 3P 480V 10A 5K C-T Siemens	2 In Stock	1 : $267.64000 Bulk	5SY4	Bulk	Active	DIN Rail	-	10A	400 V	72 V	Lever	3	None	-	CCC, CE, IMQ, RCM, UR, VDE
5SY43408 SUP PTOR 5SY4 3P 480V 40A 5K D-T Siemens	2 In Stock	1 : $267.64000 Bulk	5SY4	Bulk	Active	DIN Rail	-	40A	400 V	72 V	Lever	3	None	-	CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY43207 SWITCH_OVERCURRENT_20A_400V Siemens	2 In Stock	1 : $267.64000 Bulk	5SY4	Bulk	Active	DIN Rail	-	20A	400 V	72 V	Lever	3	None	-	CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY41027 SUP PTOR 5SY4 1P 240V 2A 7.5K C- Siemens	1 In Stock	1 : $99.15000 Bulk	5SY4	Bulk	Active	DIN Rail	-	2A	400 V	72 V	Lever	1	None	-	CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY41187 SUP PTOR 5SY4 1P 240V 15A 7.5K C Siemens	1 In Stock	1 : $99.15000 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 : $99.15000 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 : $99.15000 Bulk	5SY4	Bulk	Active	DIN Rail	-	1A	400 V	72 V	Lever	1	None	-	CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY41307 SUP PTOR 5SY4 1P 240V 30A 7.5K C Siemens	1 In Stock	1 : $99.15000 Bulk	5SY4	Bulk	Active	DIN Rail	-	30A	400 V	72 V	Lever	1	None	-	CCC, CE, EAC, RCM, UR, VDE
5SY41087 SUP PTOR 5SY4 1P 240V 8A 7.5K C- Siemens	1 In Stock	1 : $99.15000 Bulk	5SY4	Bulk	Active	DIN Rail	-	8A	400 V	72 V	Lever	1	None	-	CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY41207 SUP PTOR 5SY4 1P 240V 20A 7.5K C Siemens	1 In Stock	1 : $99.15000 Bulk	5SY4	Bulk	Active	DIN Rail	-	20A	400 V	-	Lever	1	None	-	CCC, CE, EAC, IMQ, UL, VDE
5SY41407 SUP PTOR 5SY4 1P 240V 40A 7.5K C Siemens	1 In Stock	1 : $109.89000 Bulk	5SY4	Bulk	Active	DIN Rail	-	40A	400 V	72 V	Lever	1	None	-	CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY45067 SUP PTOR 5SY4 1P+N 240V 6A 7.5K Siemens	1 In Stock	1 : $165.87000 Bulk	5SY4	Bulk	Active	DIN Rail	-	6A	230 V	72 V	Lever	2	None	-	CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY42047 SUP PTOR 5SY4 2P 480V 4A 5K C-TR Siemens	1 In Stock	1 : $170.69000 Bulk	5SY4	Bulk	Active	DIN Rail	-	4A	400 V	72 V	Lever	2	None	-	CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY42187 SUP PTOR 5SY4 2P 480V 15A 5K C-T Siemens	1 In Stock	1 : $185.68000 Bulk	5SY4	Bulk	Active	DIN Rail	-	15A	400 V	72 V	Lever	2	None	-	CCC, CE, RCM, UR, VDE
5SY42207 SUP PTOR 5SY4 2P 480V 20A 5K C-T Siemens	1 In Stock	1 : $185.68000 Bulk	5SY4	Bulk	Active	DIN Rail	-	20A	400 V	72 V	Lever	2	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.