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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
Circuit Breakers MSP S00 9-12.5A SCREW 3RV20111KA10 Siemens 1: $398.60 11In Stock	Mfr. Part No. 3RV20111KA10 Mouser Part No 982-3RV20111KA10	Siemens	Circuit Breakers MSP S00 9-12.5A SCREW Learn More about Siemens 3rv2 circuit breakers	Datasheet	11In Stock	$398.60 $355.18 $327.47 $270.41	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	12.5 A	690 VAC		3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP S0 27-32A AUX 1NO 1NC SCREW 3RV20214EA15 Siemens 1: $754.39 7In Stock	Mfr. Part No. 3RV20214EA15 Mouser Part No 982-3RV20214EA15	Siemens	Circuit Breakers MSP S0 27-32A AUX 1NO 1NC SCREW Learn More about Siemens 3rv2 circuit breakers	Datasheet	7In Stock	$754.39 $628.63 $579.21	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	32 A	690 VAC		3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP S2 CLASS 10 42-52A SCREW 3RV20314WA10 Siemens 1: $894.34 7In Stock	Mfr. Part No. 3RV20314WA10 Mouser Part No 982-3RV20314WA10	Siemens	Circuit Breakers MSP S2 CLASS 10 42-52A SCREW Learn More about Siemens 3rv2 circuit breakers	Datasheet	7In Stock	$894.34 $789.59 $682.28	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	52 A	690 VAC		3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers 482-G323-J1M1-B2S1-4A E-T-A 1: $328.68 1In Stock	Mfr. Part No. 482-G323-J1M1-B2S1-4A Mouser Part No 457-82G323J1M1B2S14A	E-T-A	Circuit Breakers		1In Stock	$328.68 $272.42 $251.11 $207.51 View Quote	Min.: 1 Mult.: 1	482-G	Thermal Circuit Breakers		4 A	115 VAC	28 VDC	1 Pole	Push-Pull	- 55 C	+ 75 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-G323-J1M1-B2S1-6A E-T-A 1: $335.24 1In Stock	Mfr. Part No. 482-G323-J1M1-B2S1-6A Mouser Part No 457-82G323J1M1B2S16A	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	1In Stock	$335.24 $253.86 $230.28	Min.: 1 Mult.: 1	482-G	Thermal Circuit Breakers		6 A	115 VAC	28 VDC	1 Pole	Push-Pull	- 55 C	+ 75 C	Non-Illuminated
Circuit Breakers R21-61-7.50A-W02EV AIRPAX 1: $144.98 3In Stock	Mfr. Part No. R21-61-7.50A-W02EV Mouser Part No 874-R21-61-750AW02EV	AIRPAX	Circuit Breakers	Datasheet	3In Stock	$144.98 $137.36 $129.73 $123.90 $119.26	Min.: 1 Mult.: 1		Thermal Circuit Breakers	Thermal	7.5 A			2 Pole	Rocker	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers RCBO DS201 2P C20A 30MA UL DS201-C20A30UL ABB 1: $388.63 18In Stock 30Expected 14/1/2027 New At Mouser	Mfr. Part No. DS201-C20A30UL Mouser Part No 894-DS201-C20A30UL New At Mouser	ABB	Circuit Breakers RCBO DS201 2P C20A 30MA UL		18In Stock 30Expected 14/1/2027	$388.63 $341.88 $320.25 $285.25 View Quote	Min.: 1 Mult.: 1
Circuit Breakers The 3120-N...4 IP65 rated thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N...4 is ideally sui 3120-N554-P7T1-W02D-20A E-T-A 1: $54.85 66In Stock	Mfr. Part No. 3120-N554-P7T1-W02D-20A Mouser Part No 457-554P7T1W02D20	E-T-A	Circuit Breakers The 3120-N...4 IP65 rated thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N...4 is ideally sui Learn More about E-T-A e t a 3120 n thermal circuit breakers	Datasheet	66In Stock	$54.85 $45.49 $41.96 $35.16 $31.09	Min.: 1 Mult.: 1	3120-N	Thermal Circuit Breakers	Overcurrent Protection	20 A	240 VAC	50 VDC	2 Pole	Rocker	- 30 C	+ 60 C	Non-Illuminated
Circuit Breakers MoQ=10 Non-Preferred Part (Build to Order) - Alternative Stocked Part Number 2210-S211-P1M1-Z141-20A 93 2210-S211-P1M1-H111-20A E-T-A 1: $335.78 9In Stock	Mfr. Part No. 2210-S211-P1M1-H111-20A Mouser Part No 457-0S211P1M1H11120A	E-T-A	Circuit Breakers MoQ=10 Non-Preferred Part (Build to Order) - Alternative Stocked Part Number 2210-S211-P1M1-Z141-20A 93 Learn More about E-T-A e t a 2210 s2 thermal magnetic circuit breakers	Datasheet	9In Stock	$335.78 $278.31 $263.24 $230.66	Min.: 1 Mult.: 1	2210-S2	Thermal Circuit Breakers	Thermal Magnetic	20 A	250 VAC, 433 VAC	65 VDC	1 Pole	Toggle	- 30 C	+ 60 C	Non-Illuminated
Circuit Breakers Single, two and three pole rocker switch/thermal trip free circuit breakers (S-type TO CBE to EN 60934) of compact design for snap-in panel mounting. Available either with protection on one/both/all poles or, in the case of the double 3130-F120-P7T1-W02Q-7A E-T-A 1: $79.38 80In Stock	Mfr. Part No. 3130-F120-P7T1-W02Q-7A Mouser Part No 457-30F120P7T1W02Q7A	E-T-A	Circuit Breakers Single, two and three pole rocker switch/thermal trip free circuit breakers (S-type TO CBE to EN 60934) of compact design for snap-in panel mounting. Available either with protection on one/both/all poles or, in the case of the double	Datasheet	80In Stock	$79.38 $65.85 $61.06 $52.14 View $50.67 $48.81 Quote	Min.: 1 Mult.: 1	3130-F		Thermal Overcurrent	7 A	415 VAC	50 VDC	2 Pole	Rocker	- 30 C	+ 60 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 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: $241.02 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	$241.02 $239.96 $220.29 $158.81 $154.99	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 UL489 MCB 3P Z 40A 480/277 SU203M-Z40 ABB 1: $290.63 10In Stock New At Mouser	Mfr. Part No. SU203M-Z40 Mouser Part No 894-SU203M-Z40 New At Mouser	ABB	Circuit Breakers UL489 MCB 3P Z 40A 480/277 Learn More about ABB su200m mini circuit breakers	Datasheet	10In Stock	$290.63 $240.88 $223.53 View Quote	Min.: 1 Mult.: 1	SU200M	Circuit Breakers		40 A			3 Pole
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 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 E-T-A 1658-A21-02-P10-10A 1658-A21-02-P10-10A E-T-A 1: $9.90 569In Stock	Mfr. Part No. 1658-A21-02-P10-10A Mouser Part No 457-1658A2102P1010A	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	569In Stock	$9.90 $9.42 $9.08 $6.84 View $5.60 $4.75 $4.73	Min.: 1 Mult.: 1	1658	Thermal Circuit Breakers	Overcurrent Protection	10 A	240 VAC	28 VDC	1 Pole	Push to Reset	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers W58-XA6A4A-3=CKTBKR THERM PB Q 1423695-7 TE Connectivity / P&B 1: $9.60 416In Stock	Mfr. Part No. 1423695-7 Mouser Part No 655-1423695-7	TE Connectivity / P&B	Circuit Breakers W58-XA6A4A-3=CKTBKR THERM PB Q	Datasheet	416In Stock	$9.60 $7.43 $6.61 $6.13 View $5.82 $5.52 $4.79 $4.66	Min.: 1 Mult.: 1	W58	Thermal Circuit Breakers	Thermal Magnetic	3 A	250 VAC	50 VDC	1 Pole	Push to Reset	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers 5A ROCKR ACT RED ILL W51-A121B1-5 TE Connectivity / P&B 1: $8.32 1,786In Stock	Mfr. Part No. W51-A121B1-5 Mouser Part No 655-W51-A121B1-5	TE Connectivity / P&B	Circuit Breakers 5A ROCKR ACT RED ILL	Datasheet	1,786In Stock	$8.32 $7.34 $6.43 $5.74 View $5.63 $5.48	Min.: 1 Mult.: 1	W51	Circuit Breakers	Thermal	5 A	125 VAC	50 VDC	1 Pole	Rocker	0 C	+ 50 C	Illuminated
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 150In 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	150In Stock	$97.09 $93.16 $90.36 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 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-F01-00-P10-20A E-T-A 1: $9.90 1,909In Stock	Mfr. Part No. 1658-F01-00-P10-20A Mouser Part No 457-1658F0100P1020A	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	1,909In Stock	$9.90 $9.42 $6.07 $5.06 View $4.47 $4.43	Min.: 1 Mult.: 1	1658	Thermal Circuit Breakers	Overcurrent Protection	20 A	240 VAC	28 VDC	1 Pole	Push to Reset	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers TMC 71C 30A 1019987 Phoenix Contact 1: $30.80 505In Stock	Mfr. Part No. 1019987 Mouser Part No 651-1019987	Phoenix Contact	Circuit Breakers TMC 71C 30A Learn More about Phoenix Contact tmc 7 supplementary protectors	Datasheet	505In Stock	$30.80	Min.: 1 Mult.: 1	TMC 7	Circuit Breakers	Thermal Magnetic	30 A	277 VAC	60 VDC	1 Pole	Lever	- 35 C	+ 70 C	Non-Illuminated
Circuit Breakers CIRCUIT BREAKER SWITCH 30A BLK W91-X112-30 TE Connectivity / P&B 1: $133.18 152In Stock	Mfr. Part No. W91-X112-30 Mouser Part No 655-W91-X112-30	TE Connectivity / P&B	Circuit Breakers CIRCUIT BREAKER SWITCH 30A BLK	Datasheet	152In Stock	$133.18 $120.75 $120.74 $112.42 $106.64	Min.: 1 Mult.: 1	W9	Hydraulic Magnetic Circuit Breakers	Hydraulic Magnetic	30 A	277 VAC		1 Pole	Toggle	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers 50A 2 POLE 2 TOGGLE W92-X112-50 TE Connectivity / P&B 1: $199.66 71In Stock	Mfr. Part No. W92-X112-50 Mouser Part No 655-W92-X112-50	TE Connectivity / P&B	Circuit Breakers 50A 2 POLE 2 TOGGLE	Datasheet	71In Stock	$199.66 $179.87 Quote Quote	Min.: 1 Mult.: 1	W9	Hydraulic Magnetic Circuit Breakers	Hydraulic Magnetic	50 A	277 VAC		2 Pole	Toggle	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers Bimetal operated single pole motor protection controls with automatic reset actuation, small physical size, reliable snap-action mechanism. Caution: In specifying these 2 products, care should be taken to ensure that automatic motor 2-6500-P10-2A E-T-A 1: $54.35 92In Stock	Mfr. Part No. 2-6500-P10-2A Mouser Part No 457-26500P102A	E-T-A	Circuit Breakers Bimetal operated single pole motor protection controls with automatic reset actuation, small physical size, reliable snap-action mechanism. Caution: In specifying these 2 products, care should be taken to ensure that automatic motor	Datasheet	92In Stock	$54.35 $45.10 $41.59 $34.45 View $31.73 $28.45 $27.08	Min.: 1 Mult.: 1	2-6500	Circuit Breakers	Overcurrent Protection	2 A	250 VAC	28 VDC	1 Pole		- 10 C	+ 60 C	Non-Illuminated
Circuit Breakers Single pole high performance thermal-magnetic circuit breaker, with tease-free, trip-free, snap action mechanism and push/pull on/off actuation (M-type TM CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off position. 452-K14-LN2-100A E-T-A 1: $459.54 13In Stock	Mfr. Part No. 452-K14-LN2-100A Mouser Part No 457-452-K14-LN2-100A	E-T-A	Circuit Breakers Single pole high performance thermal-magnetic circuit breaker, with tease-free, trip-free, snap action mechanism and push/pull on/off actuation (M-type TM CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off position.	Datasheet	13In Stock	$459.54 $381.78 $285.44 $235.76	Min.: 1 Mult.: 1	452	Circuit Breakers	Thermal Magnetic	100 A		28 VDC	1 Pole	Pushbutton	- 55 C	+ 75 C	Non-Illuminated