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40 A Circuit Breakers

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) 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 CBMC E4 24DC/1-10ANO 2906032 Phoenix Contact 1: $116.29 374In Stock	Mfr. Part No. 2906032 Mouser Part No 651-2906032	Phoenix Contact	Circuit Breakers CBMC E4 24DC/1-10ANO Learn More about Phoenix Contact cbmc circuit breakers	Datasheet	374In Stock	$116.29	Min.: 1 Mult.: 1	CBMC	Circuit Breakers	Electronic	40 A		24 VDC	4 Pole		- 25 C	+ 60 C	Illuminated
Circuit Breakers 40A TOGGLE ACTUATOR W31-X2M1G-40 TE Connectivity / P&B 1: $57.92 422In Stock	Mfr. Part No. W31-X2M1G-40 Mouser Part No 655-W31-X2M1G-40	TE Connectivity / P&B	Circuit Breakers 40A TOGGLE ACTUATOR	Datasheet	422In Stock	$57.92 $57.00 $51.15 $48.65 View $45.77 $45.76 Quote	Min.: 1 Mult.: 1	W31	Circuit Breakers	Thermal	40 A	240 VAC	50 VDC	1 Pole	Toggle	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP S0 34-40A SCREW 3RV20214FA10 Siemens 1: $635.91 4In Stock	Mfr. Part No. 3RV20214FA10 Mouser Part No 982-3RV20214FA10	Siemens	Circuit Breakers MSP S0 34-40A SCREW Learn More about Siemens 3rv2 circuit breakers	Datasheet	4In Stock	$635.91 $526.81 $485.35	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	40 A	690 VAC		3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers CBMC E4 24DC/1-10A S-R 1065729 Phoenix Contact 1: $116.29 90In Stock	Mfr. Part No. 1065729 Mouser Part No 651-1065729	Phoenix Contact	Circuit Breakers CBMC E4 24DC/1-10A S-R Learn More about Phoenix Contact cbmc circuit breakers	Datasheet	90In Stock	$116.29	Min.: 1 Mult.: 1	CBMC	Circuit Breakers	Electronic	40 A		24 VDC	1 Pole	Pushbutton	- 25 C	+ 60 C	Illuminated
Circuit Breakers 40A 3 POLE TOGGLE W93-X112-40 TE Connectivity / P&B 1: $262.80 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	$262.80 $237.58 $231.64 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 MSP S2 CLASS 10 32-40A SCREW 3RV20314UA10 Siemens 1: $587.01 3In Stock	Mfr. Part No. 3RV20314UA10 Mouser Part No 982-3RV20314UA10	Siemens	Circuit Breakers MSP S2 CLASS 10 32-40A SCREW Learn More about Siemens 3rv2 circuit breakers	Datasheet	3In Stock	$587.01 $487.78 $449.41	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	40 A	690 VAC		3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers Cir Brkr Hyd Mag IELK11-1-63F-40.0-01-V AIRPAX 1: $171.13 2In Stock	Mfr. Part No. IELK11-1-63F-40.0-01-V Mouser Part No 874-IELK11163F401V	AIRPAX	Circuit Breakers Cir Brkr Hyd Mag	Datasheet	2In Stock	$171.13 $149.43 $103.87 $91.26 View $75.55 Quote	Min.: 1 Mult.: 1	IEL	Circuit Breakers	Hydraulic Magnetic	40 A			2 Pole	Handle	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers BRKR 3VA51 2P 40A 25KA FTFM NUT 3VA51404ED220AA0 Siemens 1: $786.11 1In Stock	Mfr. Part No. 3VA51404ED220AA0 Mouser Part No 982-3VA51404ED220AA0	Siemens	Circuit Breakers BRKR 3VA51 2P 40A 25KA FTFM NUT Learn More about Siemens 3va molded case circuit breakers	Datasheet	1In Stock	$786.11 $716.47 $700.23 View Quote	Min.: 1 Mult.: 1	3VA	Thermal Magnetic Circuit Breakers	System Protection	40 A	415 VAC	250 VDC	2 Pole	Paddle	- 25 C	+ 70 C	Non-Illuminated
Circuit Breakers Cir Brkr Hyd Mag IEGZX66-1-62-40.0-AG-03-V AIRPAX 1: $121.67 2In Stock	Mfr. Part No. IEGZX66-1-62-40.0-AG-03-V Mouser Part No 874-IEGZX6616240AG3V	AIRPAX	Circuit Breakers Cir Brkr Hyd Mag	Datasheet	2In Stock	$121.67 $106.25 $73.82 $64.91 View $53.69 Quote	Min.: 1 Mult.: 1		Circuit Breakers		40 A			2 Pole	Rocker	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers Mico Pro electronic circuit protection, 2 channels, IN: 24 V DC OUT: 24 V DC / 1-2-3-4-5-6-7-8-9-10A 9000-41092-0101000 Murrelektronik 1: $201.98 1In Stock	Mfr. Part No. 9000-41092-0101000 Mouser Part No 867-9000410920101000	Murrelektronik	Circuit Breakers Mico Pro electronic circuit protection, 2 channels, IN: 24 V DC OUT: 24 V DC / 1-2-3-4-5-6-7-8-9-10A Learn More about Murrelektronik mico pro	Datasheet	1In Stock	$201.98	Min.: 1 Mult.: 1	9	Circuit Breakers	MICO	40 A		12 VDC, 24 VDC	2 Pole		- 25 C	+ 55 C	Non-Illuminated	Bulk
Circuit Breakers Cir Brkr Hyd Mag IEGHS666-1-62-40.0-01-V AIRPAX 1: $203.13 2In Stock	Mfr. Part No. IEGHS666-1-62-40.0-01-V Mouser Part No 874-IEGHS666162401V	AIRPAX	Circuit Breakers Cir Brkr Hyd Mag	Datasheet	2In Stock	$203.13 $177.42 $123.28 $108.36 View $89.67 Quote	Min.: 1 Mult.: 1		Hydraulic Magnetic Circuit Breakers	Hydraulic Magnetic	40 A			3 Pole	Handle	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers SUP PTOR 5SY4 2P 480V 40A 5K B-TRIP 5SY42406 Siemens 1: $143.65 5In Stock	Mfr. Part No. 5SY42406 Mouser Part No 982-5SY42406	Siemens	Circuit Breakers SUP PTOR 5SY4 2P 480V 40A 5K B-TRIP Learn More about Siemens 5sy4 mini circuit breakers	Datasheet	5In Stock	$143.65 $122.15 $116.02 $107.44 View $104.31 Quote	Min.: 1 Mult.: 1		Circuit Breakers	Miniature	40 A	400 VAC	60 VDC	2 Pole	Lever	- 40 C	+ 70 C	Non-Illuminated
Circuit Breakers 120/240V 40A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT HCBY2P40GA850 Hartland Controls / Littelfuse 1: $92.10 21In Stock	Mfr. Part No. HCBY2P40GA850 Mouser Part No 576-HCBY2P40GA850	Hartland Controls / Littelfuse	Circuit Breakers 120/240V 40A 2P CIRCUIT BREAKER, LUGS/QUICK CONNECT Learn More about Hartland Controls / Littelfuse hartland hcb circuit breakers	Datasheet	21In Stock	$92.10 $76.38 $72.54 $60.46 View $56.46 Quote	Min.: 1 Mult.: 1	HCB	Thermal Magnetic Circuit Breakers		40 A	120 VAC, 240 VAC		2 Pole	Handle	- 10 C	+ 60 C	Non-Illuminated	Bulk
Circuit Breakers MCB UL1077 C 3P 40A GSB633PC40 Carlo Gavazzi 1: $38.95 24In Stock	Mfr. Part No. GSB633PC40 Mouser Part No 225-GSB633PC40	Carlo Gavazzi	Circuit Breakers MCB UL1077 C 3P 40A	Datasheet	24In Stock	$38.95 $34.74 $33.32 $33.22 Quote Quote	Min.: 1 Mult.: 1	GSB63	Circuit Breakers	Thermal Magnetic	40 A	277 VAC		3 Pole	Lever	- 35 C	+ 70 C	Non-Illuminated	Bulk
Circuit Breakers TMC 82D 40A 2907670 Phoenix Contact 1: $43.14 102In Stock	Mfr. Part No. 2907670 Mouser Part No 651-2907670	Phoenix Contact	Circuit Breakers TMC 82D 40A Learn More about Phoenix Contact control cabinets	Datasheet	102In Stock	$43.14	Min.: 1 Mult.: 1	TMC 8	Circuit Breakers	Thermal Magnetic	40 A	240 VAC	125 VDC	2 Pole	Lever	- 35 C	+ 70 C	Non-Illuminated
Circuit Breakers TMC 72D 40A 1020078 Phoenix Contact 1: $34.51 60In Stock	Mfr. Part No. 1020078 Mouser Part No 651-1020078	Phoenix Contact	Circuit Breakers TMC 72D 40A Learn More about Phoenix Contact control cabinets	Datasheet	60In Stock	$34.51	Min.: 1 Mult.: 1	TMC 7	Circuit Breakers	Thermal Magnetic	40 A	277 VAC	125 VDC	2 Pole	Lever	- 35 C	+ 70 C	Non-Illuminated
Circuit Breakers CIRCUIT BREAKER SWITCH 40A BLK W92-X112-40 TE Connectivity / P&B 1: $151.84 72In Stock	Mfr. Part No. W92-X112-40 Mouser Part No 655-W92-X112-40	TE Connectivity / P&B	Circuit Breakers CIRCUIT BREAKER SWITCH 40A BLK	Datasheet	72In Stock	$151.84 $146.18 $138.50	Min.: 1 Mult.: 1	W9	Hydraulic Magnetic Circuit Breakers	Hydraulic Magnetic	40 A	277 VAC		2 Pole	Toggle	- 40 C	+ 85 C	Non-Illuminated	Tray
Circuit Breakers Cir Brkr Hyd Mag IAGH666-1-65-40.0-01 AIRPAX 1: $188.03 1In Stock	Mfr. Part No. IAGH666-1-65-40.0-01 Mouser Part No 874-IAGH666165401	AIRPAX	Circuit Breakers Cir Brkr Hyd Mag	Datasheet	1In Stock	$188.03 $164.22 $114.11 $100.24 View $83.01 Quote	Min.: 1 Mult.: 1		Circuit Breakers		40 A			3 Pole	Toggle	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers MCB SU200MR RTT 3P K 40A BCP SU203MR-K40 ABB 1: $237.41 1In Stock 10Expected 27/11/2026 New At Mouser	Mfr. Part No. SU203MR-K40 Mouser Part No 894-SU203MR-K40 New At Mouser	ABB	Circuit Breakers MCB SU200MR RTT 3P K 40A BCP Learn More about ABB su200mr mini circuit breakers	Datasheet	1In Stock 10Expected 27/11/2026	$237.41 $211.37 $193.74 $172.90 View Quote	Min.: 1 Mult.: 1	SU200MR	Circuit Breakers		40 A			3 Pole
Circuit Breakers Single and multipole magnetic circuit breakers with trip-free mechanism and toggle actuation. A choice of fast magnetic only or hydraulically delayed switching characteristics (S-type MO or HM CBE to EN 60934) ensures suitability for 8340-F410-K4M1-KLH0-40A E-T-A 1: $73.47 6In Stock	Mfr. Part No. 8340-F410-K4M1-KLH0-40A Mouser Part No 457-834410K4M1KLH040	E-T-A	Circuit Breakers Single and multipole magnetic circuit breakers with trip-free mechanism and toggle actuation. A choice of fast magnetic only or hydraulically delayed switching characteristics (S-type MO or HM CBE to EN 60934) ensures suitability for	Datasheet	6In Stock	$73.47 $60.95 $56.68 $47.58 View $45.83 $44.55	Min.: 1 Mult.: 1	8340-F	Hydraulic Magnetic Circuit Breakers	Thermal Magnetic	40 A	240 VAC, 415 VAC	80 VDC	1 Pole	Toggle	- 40 C	+ 85 C	Non-Illuminated
Circuit Breakers 40A D Characteristic UL 508 1 POLE 1D40UM Altech 1: $38.42 9In Stock 1On Order	Mfr. Part No. 1D40UM Mouser Part No 845-1D40UM	Altech	Circuit Breakers 40A D Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	9In Stock 1On Order	$38.42 $32.46 $26.27 $24.37 View $23.57 $22.93 $22.36 Quote	Min.: 1 Mult.: 1	UM			40 A	277 VAC	24 VDC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers MCB ST200M 2P D 40A UL1077 ST202M-D40 ABB 1: $134.78 3In Stock 2Expected 27/11/2026 New At Mouser	Mfr. Part No. ST202M-D40 Mouser Part No 894-ST202M-D40 New At Mouser	ABB	Circuit Breakers MCB ST200M 2P D 40A UL1077 Learn More about ABB st200m mini circuit breakers	Datasheet	3In Stock 2Expected 27/11/2026	$134.78 $103.39 $93.81 $84.75 View $80.65 Quote	Min.: 1 Mult.: 1	ST200M	Circuit Breakers		40 A			2 Pole
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-G323-J1M1-B2S0-40A 482-G323-J1M1-B2S0-40A E-T-A 1: $181.58 1In Stock	Mfr. Part No. 482-G323-J1M1-B2S0-40A Mouser Part No 457-2G323J1M1B2S040A	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	$181.58 $154.25 $136.08 $129.90 View Quote	Min.: 1 Mult.: 1	482-G	Thermal Circuit Breakers	Thermal	40 A	125 VAC	28 VDC	1 Pole	Push-Pull	- 55 C	+ 75 C	Non-Illuminated
Circuit Breakers FAZ-NA UL 489 MCB 240VAC 4P 40A D CURVE FAZ-D40/4-NA Eaton Electrical 1: $374.70 1In Stock	Mfr. Part No. FAZ-D40/4-NA Mouser Part No 504-FAZ-D40/4-NA	Eaton Electrical	Circuit Breakers FAZ-NA UL 489 MCB 240VAC 4P 40A D CURVE	Datasheet	1In Stock	$374.70 $292.34 $274.35 View Quote	Min.: 1 Mult.: 1	FAZ	Circuit Breakers	Miniature	40 A	240 VAC, 415 VAC		4 Pole	Handle	- 40 C	+ 75 C	Non-Illuminated
Circuit Breakers UL489 MCB 3P Z 40A 480/277 SU203M-Z40 ABB 1: $213.70 8In 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	8In Stock	$213.70 $177.12 $164.36 View Quote	Min.: 1 Mult.: 1	SU200M	Circuit Breakers		40 A			3 Pole