.hide-partial { max-height: none; } .show-more { display: none; }

Circuit Breakers

Circuit breakers are in stock with same-day shipping at Mouser from leading manufacturers. Mouser is an authorized distributor for many circuit breaker manufacturers including ABB, Carling Technologies, Eaton, E-T-A Circuit Breakers, Phoenix Contact, Sensata, Schurter, Siemens, TE Connectivity & more.
More...

Please view our large selection of circuit breakers below.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 151,953

Applied Filters:

Manufacturer

Series

Product

Type

Current Rating

Voltage Rating AC

Voltage Rating DC

Number of Poles

Actuator

Minimum Operating Temperature

Maximum Operating Temperature

Illuminated

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Product	Type	Current Rating	Voltage Rating AC	Voltage Rating DC	Number of Poles	Actuator	Minimum Operating Temperature	Maximum Operating Temperature	Illuminated	Packaging
Circuit Breakers CIRCUIT BRKR 15A 12V 30055-15 Cole Hersee 1: £13.67 935In Stock	Mfr. Part No. 30055-15 Mouser Part No 576-30055-15	Cole Hersee	Circuit Breakers CIRCUIT BRKR 15A 12V	Datasheet	935In Stock	£13.67 £8.77 £7.78 £6.89 £6.56	Min.: 1 Mult.: 1	Box-Style Circuit Breakers	Circuit Breakers	Auto Reset	15 A		12 VDC	1 Pole				Non-Illuminated	Bulk
Circuit Breakers CIRCUIT BRKR 30A 12V 30055-30 Cole Hersee 1: £13.68 1,071In Stock	Mfr. Part No. 30055-30 Mouser Part No 576-30055-30	Cole Hersee	Circuit Breakers CIRCUIT BRKR 30A 12V	Datasheet	1,071In Stock	£13.68 £9.00 £7.94 £6.76 £6.56	Min.: 1 Mult.: 1	Box-Style Circuit Breakers	Circuit Breakers	Auto Reset	30 A		12 VDC	1 Pole				Non-Illuminated	Bulk
Circuit Breakers CIRCUIT BRKR 50A 12V 30055-50 Cole Hersee 1: £13.68 170In Stock	Mfr. Part No. 30055-50 Mouser Part No 576-30055-50	Cole Hersee	Circuit Breakers CIRCUIT BRKR 50A 12V	Datasheet	170In Stock	£13.68 £8.77 £7.78 £6.88 £6.56	Min.: 1 Mult.: 1		Circuit Breakers	Auto Reset	50 A		12 VDC	1 Pole				Non-Illuminated	Bulk
Circuit Breakers TCP 30/DC32V 0700030 Phoenix Contact 1: £11.57 234In Stock	Mfr. Part No. 0700030 Mouser Part No 651-0700030	Phoenix Contact	Circuit Breakers TCP 30/DC32V Learn More about Phoenix Contact tcp thermal circuit breakers	Datasheet	234In Stock	£11.57 £10.14	Min.: 1 Mult.: 1	TCP	Circuit Breakers	Thermal	30 A		32 VDC	1 Pole	Pushbutton	- 40 C	+ 85 C	Non-Illuminated	Bulk
Circuit Breakers W92-X112-25 M6/M7/M9/W6/W7 7-1393254-4 TE Connectivity / AMP 1: £234.92 72In Stock	Mfr. Part No. 7-1393254-4 Mouser Part No 655-7-1393254-4	TE Connectivity / AMP	Circuit Breakers W92-X112-25 M6/M7/M9/W6/W7	Datasheet	72In Stock	£234.92 £194.71 £179.48 £162.79 View Quote	Min.: 1 Mult.: 1	W9	Hydraulic Magnetic Circuit Breakers	Hydraulic Magnetic	25 A	277 VAC		2 Pole	Toggle	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers 15A 2-P Illum Amber P1 Switch P2 Trip QC W33-S4B1Q-15 TE Connectivity / P&B 1: £52.85 75In Stock	Mfr. Part No. W33-S4B1Q-15 Mouser Part No 655-W33-S4B1Q-15	TE Connectivity / P&B	Circuit Breakers 15A 2-P Illum Amber P1 Switch P2 Trip QC	Datasheet	75In Stock	£52.85	Min.: 1 Mult.: 1	W33	Circuit Breakers	Thermal	15 A	250 VAC	50 VDC	2 Pole	Rocker	- 20 C	+ 60 C	Illuminated
Circuit Breakers 15A 2-P Illum Amber P1 & P2 Trip QC W33-T4B1Q-15 TE Connectivity / Raychem 1: £67.14 105In Stock	Mfr. Part No. W33-T4B1Q-15 Mouser Part No 655-W33-T4B1Q-15	TE Connectivity / Raychem	Circuit Breakers 15A 2-P Illum Amber P1 & P2 Trip QC	Datasheet	105In Stock	£67.14	Min.: 1 Mult.: 1	W33	Circuit Breakers	Thermal	15 A	250 VAC	50 VDC	2 Pole	Rocker	- 20 C	+ 60 C	Illuminated
Circuit Breakers 5A 1 POLE TOGGLE W67-X2Q10-5 TE Connectivity / P&B 1: £53.45 114In Stock	Mfr. Part No. W67-X2Q10-5 Mouser Part No 655-W67-X2Q10-5	TE Connectivity / P&B	Circuit Breakers 5A 1 POLE TOGGLE	Datasheet	114In Stock	£53.45 £48.17 £47.88 £44.62 £43.28	Min.: 1 Mult.: 1	W6	Hydraulic Magnetic Circuit Breakers	Hydraulic Magnetic	5 A	277 VAC		1 Pole	Toggle	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers 15A 1 POLE TOGGLE W67-X2Q12-15 TE Connectivity / P&B 1: £46.87 121In Stock	Mfr. Part No. W67-X2Q12-15 Mouser Part No 655-W67-X2Q12-15	TE Connectivity / P&B	Circuit Breakers 15A 1 POLE TOGGLE	Datasheet	121In Stock	£46.87 £46.23	Min.: 1 Mult.: 1	W6	Hydraulic Magnetic Circuit Breakers	Hydraulic Magnetic	15 A	277 VAC		1 Pole	Toggle	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers CIRCUIT BREAKER SWITCH 20A BLK W91-X1110-20 TE Connectivity / P&B 1: £33.37 172In Stock	Mfr. Part No. W91-X1110-20 Mouser Part No 655-W91-X1110-20	TE Connectivity / P&B	Circuit Breakers CIRCUIT BREAKER SWITCH 20A BLK	Datasheet	172In Stock	£33.37 £29.51 £23.95 £21.79 £21.63	Min.: 1 Mult.: 1	W9	Hydraulic Magnetic Circuit Breakers	Hydraulic Magnetic	20 A	277 VAC		1 Pole	Toggle	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers 40A 3 POLE TOGGLE W93-X112-40 TE Connectivity / P&B 1: £197.31 48In Stock	Mfr. Part No. W93-X112-40 Mouser Part No 655-W93-X112-40	TE Connectivity / P&B	Circuit Breakers 40A 3 POLE TOGGLE	Datasheet	48In Stock	£197.31 £185.56	Min.: 1 Mult.: 1	W9	Hydraulic Magnetic Circuit Breakers	Hydraulic Magnetic	40 A	277 VAC		3 Pole	Toggle	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers MoQ=10 Non-Preferred Part (Build to Order) - Alternative Stocked Part Number 2210-S221-P1M1-Z241-12A 94 2210-S221-P1M3-H0-12A E-T-A 1: £192.72 10In Stock	Mfr. Part No. 2210-S221-P1M3-H0-12A Mouser Part No 457-210S221P1M3H012A	E-T-A	Circuit Breakers MoQ=10 Non-Preferred Part (Build to Order) - Alternative Stocked Part Number 2210-S221-P1M1-Z241-12A 94 Learn More about E-T-A e t a 2210 s2 thermal magnetic circuit breakers	Datasheet	10In Stock	£192.72 £134.89 £127.54 £125.62 View Quote	Min.: 1 Mult.: 1	2210-S2	Thermal Circuit Breakers	Thermal Magnetic					Toggle
Circuit Breakers 5A ROCKR ACT RED ILL W51-A122B1-5 TE Connectivity / P&B 1: £4.92 499In Stock	Mfr. Part No. W51-A122B1-5 Mouser Part No 655-W51-A122B1-5	TE Connectivity / P&B	Circuit Breakers 5A ROCKR ACT RED ILL	Datasheet	499In Stock	£4.92 £4.32 £3.32 £3.20 £3.06	Min.: 1 Mult.: 1	W51	Circuit Breakers	Thermal	5 A	250 VAC	50 VDC	1 Pole	Rocker	0 C	+ 50 C	Illuminated
Circuit Breakers CIRCUIT BRKER 1POLE 8Amps Rocker W51-A122B1-8 TE Connectivity / P&B 1: £4.91 676In Stock	Mfr. Part No. W51-A122B1-8 Mouser Part No 655-W51-A122B1-8	TE Connectivity / P&B	Circuit Breakers CIRCUIT BRKER 1POLE 8Amps Rocker	Datasheet	676In Stock	£4.91 £4.37 £3.55 £3.17 View £2.93 £2.84 £2.79 £2.76	Min.: 1 Mult.: 1	W51	Circuit Breakers	Thermal	8 A	250 VAC	50 VDC	1 Pole	Rocker	0 C	+ 50 C	Illuminated	Tray
Circuit Breakers Single pole compact high performance thermal circuit breaker with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off posit E-T-A 482-G212-K1M1-A1S0-35A 482-G212-K1M1-A1S0-35A E-T-A 1: £133.05 25In Stock	Mfr. Part No. 482-G212-K1M1-A1S0-35A Mouser Part No 457-2G212K1M1A1S035A	E-T-A	Circuit Breakers Single pole compact high performance thermal circuit breaker with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off posit	Datasheet	25In Stock	£133.05 £110.34 £102.81 £85.56	Min.: 1 Mult.: 1	482	Thermal Circuit Breakers	Thermal	35 A	115 VAC	28 VDC	1 Pole	Push-Pull	- 55 C	+ 75 C	Non-Illuminated
Circuit Breakers ETA Circuit Breakers 4130-G411-K4M1-50A E-T-A 1: £71.14 53In Stock	Mfr. Part No. 4130-G411-K4M1-50A Mouser Part No 457-4130G411K4M150A	E-T-A	Circuit Breakers ETA Circuit Breakers	Datasheet	53In Stock	£71.14 £58.98 £54.41 £45.57 £41.44	Min.: 1 Mult.: 1	4130	Thermal Circuit Breakers	Thermal Magnetic	50 A	240 VAC	50 VDC	1 Pole	Push-Pull	- 30 C	+ 60 C	Non-Illuminated
Circuit Breakers TMC 72C 32A 1020010 Phoenix Contact 1: £25.91 69In Stock	Mfr. Part No. 1020010 Mouser Part No 651-1020010	Phoenix Contact	Circuit Breakers TMC 72C 32A Learn More about Phoenix Contact control cabinets	Datasheet	69In Stock	£25.91	Min.: 1 Mult.: 1	TMC 7	Circuit Breakers	Thermal Magnetic	32 A	277 VAC	125 VDC	2 Pole	Lever	- 35 C	+ 70 C	Non-Illuminated
Circuit Breakers TMC 71D 16A 1020051 Phoenix Contact 1: £14.06 105In Stock	Mfr. Part No. 1020051 Mouser Part No 651-1020051	Phoenix Contact	Circuit Breakers TMC 71D 16A Learn More about Phoenix Contact tmc 7 supplementary protectors	Datasheet	105In Stock	£14.06 £12.76	Min.: 1 Mult.: 1	TMC 7	Circuit Breakers	Thermal Magnetic	16 A	277 VAC	60 VDC	1 Pole	Lever	- 35 C	+ 70 C	Non-Illuminated
Circuit Breakers TMC 81C 63A 2907581 Phoenix Contact 1: £15.09 368In Stock	Mfr. Part No. 2907581 Mouser Part No 651-2907581	Phoenix Contact	Circuit Breakers TMC 81C 63A Learn More about Phoenix Contact TMC thermomagnetic circuit breakers	Datasheet	368In Stock	£15.09 £12.55	Min.: 1 Mult.: 1	TMC 8	Circuit Breakers	Thermal Magnetic	63 A	120 VAC	60 VDC	1 Pole	Lever	- 35 C	+ 70 C	Non-Illuminated
Circuit Breakers W51-A151A1-10=CKTBKR THERM ROCK 1-1423673-7 TE Connectivity / P&B 1: £4.44 587In Stock	Mfr. Part No. 1-1423673-7 Mouser Part No 655-1-1423673-7	TE Connectivity / P&B	Circuit Breakers W51-A151A1-10=CKTBKR THERM ROCK	Datasheet	587In Stock	£4.44 £3.93 £3.31 £2.95 View £2.72 £2.64 £2.59 £2.55	Min.: 1 Mult.: 1	W51	Circuit Breakers	Supplementary Protector	10 A	125 VAC	50 VDC	1 Pole	Rocker	0 C	+ 60 C	Non-Illuminated
Circuit Breakers 1POLE 12Amps Therm Circuit Brker W28-XT1A-12 TE Connectivity / P&B 1: £3.52 915In Stock	Mfr. Part No. W28-XT1A-12 Mouser Part No 655-W28-XT1A-12	TE Connectivity / P&B	Circuit Breakers 1POLE 12Amps Therm Circuit Brker	Datasheet	915In Stock	£3.52 £3.13 £3.01 £2.80 View £2.48 £2.43	Min.: 1 Mult.: 1	W28	Thermal Circuit Breakers	Thermal Magnetic	12 A	250 VAC	32 VDC	1 Pole	Push to Reset	- 20 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers 5A ROCKR ACT NON-ILL W51-A152A1-5 TE Connectivity / P&B 1: £4.52 2,504In Stock	Mfr. Part No. W51-A152A1-5 Mouser Part No 655-W51-A152A1-5	TE Connectivity / P&B	Circuit Breakers 5A ROCKR ACT NON-ILL	Datasheet	2,504In Stock	£4.52 £3.83 £3.25 £2.99	Min.: 1 Mult.: 1	W51	Circuit Breakers	Thermal	5 A	250 VAC	50 VDC	1 Pole	Rocker	0 C	+ 60 C	Non-Illuminated
Circuit Breakers CIRCUIT BREAKER THERMAL W58-XB1A4A-1.50 TE Connectivity / P&B 1: £8.02 223In Stock	Mfr. Part No. W58-XB1A4A-1.50 Mouser Part No 655-W58-XB1A4A-1.50	TE Connectivity / P&B	Circuit Breakers CIRCUIT BREAKER THERMAL	Datasheet	223In Stock	£8.02 £7.48 £6.97 £6.62 View £5.76 £5.49 £5.40	Min.: 1 Mult.: 1	W58	Thermal Circuit Breakers	Thermal Magnetic	1.5 A	250 VAC	50 VDC	1 Pole	Push to Reset	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers 10A MCB CCHAR 3 PL 480Y/277VAC UL508 3C10UM Altech 1: £55.95 31In Stock	Mfr. Part No. 3C10UM Mouser Part No 845-3C10UM	Altech	Circuit Breakers 10A MCB CCHAR 3 PL 480Y/277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	31In Stock	£55.95 £51.00 £48.57 £47.08 View £45.93 Quote	Min.: 1 Mult.: 1	UM	Circuit Breakers	C-Trip	10 A	277 VAC	80 VDC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers Mico Pro electronic circuit protection, 4 channel IN: 24 V DC OUT: 24 V DC / 4 A CL2 9000-41014-0400001 Murrelektronik 1: £182.31 14In Stock	Mfr. Part No. 9000-41014-0400001 Mouser Part No 867-9000410140400001	Murrelektronik	Circuit Breakers Mico Pro electronic circuit protection, 4 channel IN: 24 V DC OUT: 24 V DC / 4 A CL2 Learn More about Murrelektronik mico pro	Datasheet	14In Stock	£182.31	Min.: 1 Mult.: 1	9	Circuit Breakers	MICO	40 A		12 VDC, 24 VDC	4 Pole		- 25 C	+ 55 C	Non-Illuminated	Bulk