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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.
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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) 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 BREAKER SWITCH 30A WH W67-X2Q12-30 TE Connectivity / P&B 1: $79.59 81In Stock	Mfr. Part No. W67-X2Q12-30 Mouser Part No 655-W67-X2Q12-30	TE Connectivity / P&B	Circuit Breakers CIRCUIT BREAKER SWITCH 30A WH	Datasheet	81In Stock	$79.59 $73.62 $73.60 $69.44 Quote Quote	Min.: 1 Mult.: 1	W6	Hydraulic Magnetic Circuit Breakers	Hydraulic Magnetic	30 A	277 VAC		1 Pole	Toggle	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers CIRCUIT BREAKER SWITCH 30A BLK W91-X152-30 TE Connectivity / P&B 1: $97.09 148In Stock	Mfr. Part No. W91-X152-30 Mouser Part No 655-W91-X152-30	TE Connectivity / P&B	Circuit Breakers CIRCUIT BREAKER SWITCH 30A BLK	Datasheet	148In Stock	$97.09 $93.16 $92.17 View Quote	Min.: 1 Mult.: 1	W9	Hydraulic Magnetic Circuit Breakers	Hydraulic Magnetic	30 A		65 VDC	1 Pole	Toggle	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers QBHW 3P 100A 240VAC MAX 22KAIC QBHW3100HS Eaton Electrical 1: $2,166.75 1In Stock New At Mouser	Mfr. Part No. QBHW3100HS Mouser Part No 504-QBHW3100HS New At Mouser	Eaton Electrical	Circuit Breakers QBHW 3P 100A 240VAC MAX 22KAIC	Datasheet	1In Stock	$2,166.75	Min.: 1 Mult.: 1
Circuit Breakers Very cost effective design to meet international requirements. No exposed metal parts which are current-carrying except for terminals. R-type TO CBE to EN 60934. Units built to order. For requests under 500 pcs contact Customer Servi 1658-G21-00-P10-5A E-T-A 1: $9.90 443In Stock	Mfr. Part No. 1658-G21-00-P10-5A Mouser Part No 457-1658G2100P105A	E-T-A	Circuit Breakers Very cost effective design to meet international requirements. No exposed metal parts which are current-carrying except for terminals. R-type TO CBE to EN 60934. Units built to order. For requests under 500 pcs contact Customer Servi	Datasheet	443In Stock	$9.90 $9.42 $9.08 $6.84 View $5.64 $4.79 $4.76 $4.75	Min.: 1 Mult.: 1	1658	Thermal Circuit Breakers	Overcurrent Protection	5 A	240 VAC	28 VDC	1 Pole	Push to Reset	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers Single or multipole hydraulic-magnetic circuit breakers with trip-free-mechanism and toggle actuation. A choice of switching characteristics ensures suitability for a wide range of applications. Industry standard dimensions and panel 8345-C01A-W0M1-DB1B2B-15A E-T-A 1: $181.97 18In Stock	Mfr. Part No. 8345-C01A-W0M1-DB1B2B-15A Mouser Part No 457-C01W0M1DB1B2B15	E-T-A	Circuit Breakers Single or multipole hydraulic-magnetic circuit breakers with trip-free-mechanism and toggle actuation. A choice of switching characteristics ensures suitability for a wide range of applications. Industry standard dimensions and panel	Datasheet	18In Stock	$181.97 $150.89 $137.77 $125.16 View $120.26 Quote	Min.: 1 Mult.: 1	8345	Hydraulic Magnetic Circuit Breakers	Hydraulic Magnetic	15 A	240 VAC, 415 VAC	80 VDC	1 Pole	Toggle	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers CIRCUIT BRKR 15A 12V 30055-15 Cole Hersee 1: $24.77 935In Stock	Mfr. Part No. 30055-15 Mouser Part No 576-30055-15	Cole Hersee	Circuit Breakers CIRCUIT BRKR 15A 12V	Datasheet	935In Stock	$24.77 $15.90 $14.09 $12.47 View $11.45 $11.42	Min.: 1 Mult.: 1	Box-Style Circuit Breakers	Circuit Breakers	Auto Reset	15 A		12 VDC	1 Pole				Non-Illuminated	Bulk
Circuit Breakers TCP 30/DC32V 0700030 Phoenix Contact 1: $20.39 235In 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	235In Stock	$20.39 $18.37	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: $425.54 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	$425.54 $352.70 $325.12 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: $94.38 74In 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	74In Stock	$94.38 $85.01 $81.61 $76.00	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: $114.50 102In 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	102In Stock	$114.50 $110.61 $103.09 $100.98	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 1 POLE TOGGLE W67-X2Q12-15 TE Connectivity / P&B 1: $79.34 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	$79.34 $73.94 $69.40 $66.67 View $65.85 Quote	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 30A 3 POLE TOGGLE W93-X112-30 TE Connectivity / P&B 1: $429.95 35In Stock 48Expected 11/11/2026	Mfr. Part No. W93-X112-30 Mouser Part No 655-W93-X112-30	TE Connectivity / P&B	Circuit Breakers 30A 3 POLE TOGGLE	Datasheet	35In Stock 48Expected 11/11/2026	$429.95 $376.64 $360.36 $297.23	Min.: 1 Mult.: 1	W9	Hydraulic Magnetic Circuit Breakers	Hydraulic Magnetic	30 A	277 VAC		3 Pole	Toggle	- 40 C	+ 85 C	Non-Illuminated	Tray
Circuit Breakers 40A 3 POLE TOGGLE W93-X112-40 TE Connectivity / P&B 1: $357.41 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	$357.41 $323.11 $315.03 View Quote	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 CIRCUIT BREAKER SWITCH 5A BLACK W93-X112-5 TE Connectivity / P&B 1: $391.83 41In Stock	Mfr. Part No. W93-X112-5 Mouser Part No 655-W93-X112-5	TE Connectivity / P&B	Circuit Breakers CIRCUIT BREAKER SWITCH 5A BLACK	Datasheet	41In Stock	$391.83 $376.64 $349.32	Min.: 1 Mult.: 1	W9	Hydraulic Magnetic Circuit Breakers	Hydraulic Magnetic	5 A	277 VAC		3 Pole	Toggle	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers 50A 3 POLE TOGGLE W93-X112-50 TE Connectivity / P&B 1: $471.48 47In Stock	Mfr. Part No. W93-X112-50 Mouser Part No 655-W93-X112-50	TE Connectivity / P&B	Circuit Breakers 50A 3 POLE TOGGLE	Datasheet	47In Stock	$471.48 $315.06	Min.: 1 Mult.: 1	W9	Hydraulic Magnetic Circuit Breakers	Hydraulic Magnetic	50 A	277 VAC		3 Pole	Toggle	- 40 C	+ 85 C	Non-Illuminated
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 482-G111-K1M1-A1S0-1A E-T-A 1: $197.84 20In Stock	Mfr. Part No. 482-G111-K1M1-A1S0-1A Mouser Part No 457-82G111K1M1A1S01A	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	20In Stock	$197.84 $171.03 $156.17	Min.: 1 Mult.: 1	482	Thermal Circuit Breakers						Push-Pull
Circuit Breakers 30AMP 277VAC TOGGLE 2 POLE W68-X2Q12-30 TE Connectivity / Raychem 1: $320.48 14In Stock 144Expected 11/1/2027	Mfr. Part No. W68-X2Q12-30 Mouser Part No 655-W68-X2Q12-30	TE Connectivity / Raychem	Circuit Breakers 30AMP 277VAC TOGGLE 2 POLE	Datasheet	14In Stock 144Expected 11/1/2027	$320.48 $280.64	Min.: 1 Mult.: 1	W6	Hydraulic Magnetic Circuit Breakers	Hydraulic Magnetic	30 A	277 VAC		2 Pole	Toggle	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers TMC 71D 16A 1020051 Phoenix Contact 1: $27.00 108In 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	108In Stock	$27.00	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 81B 20A 2907492 Phoenix Contact 1: $29.34 321In Stock	Mfr. Part No. 2907492 Mouser Part No 651-2907492	Phoenix Contact	Circuit Breakers TMC 81B 20A Learn More about Phoenix Contact control cabinets	Datasheet	321In Stock	$29.34	Min.: 1 Mult.: 1	TMC 8	Circuit Breakers	Thermal Magnetic	20 A	120 VAC	60 VDC	1 Pole	Lever	- 35 C	+ 70 C	Non-Illuminated
Circuit Breakers TMC 81C 25A 2907574 Phoenix Contact 1: $29.34 295In Stock	Mfr. Part No. 2907574 Mouser Part No 651-2907574	Phoenix Contact	Circuit Breakers TMC 81C 25A Learn More about Phoenix Contact TMC thermomagnetic circuit breakers	Datasheet	295In Stock	$29.34	Min.: 1 Mult.: 1	TMC 8	Circuit Breakers	Thermal Magnetic	25 A	120 VAC	60 VDC	1 Pole	Lever	- 35 C	+ 70 C	Non-Illuminated
Circuit Breakers TMC 81C 50A 2907579 Phoenix Contact 1: $29.34 94In Stock	Mfr. Part No. 2907579 Mouser Part No 651-2907579	Phoenix Contact	Circuit Breakers TMC 81C 50A Learn More about Phoenix Contact control cabinets	Datasheet	94In Stock	$29.34	Min.: 1 Mult.: 1	TMC 8	Circuit Breakers	Thermal Magnetic	50 A	120 VAC	60 VDC	1 Pole	Lever	- 35 C	+ 70 C	Non-Illuminated
Circuit Breakers TMC 81C 63A 2907581 Phoenix Contact 1: $29.34 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	$29.34	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: $6.95 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	$6.95 $6.34 $5.92 $5.34 View $4.94 $4.77 $4.69 $4.61 $4.60	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: $5.82 911In 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	911In Stock	$5.82 $5.37 $4.90 $4.61 View $4.20 $3.93 $3.85 $3.75	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 15A PUSH TO RESET W28-XT1A-15 TE Connectivity / P&B 1: $5.82 2,000In Stock	Mfr. Part No. W28-XT1A-15 Mouser Part No 655-W28-XT1A-15	TE Connectivity / P&B	Circuit Breakers 15A PUSH TO RESET	Datasheet	2,000In Stock	$5.82 $5.60 $4.79 $4.46 View $4.16 $3.93 $3.86 $3.73	Min.: 1 Mult.: 1	W28	Thermal Circuit Breakers	Thermal Magnetic	15 A	250 VAC	32 VDC	1 Pole	Push to Reset	- 20 C	+ 60 C	Non-Illuminated