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40 A Electromechanical

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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.
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
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
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
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
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
Circuit Breakers 2-pole, Handle, 40 amp circuit breaker, Stud 10-32 terminals, UL 1077 Recognized CSA Accepted CA2-B0-34-640-121-C Carling Technologies 1: $105.24 53In Stock	Mfr. Part No. CA2-B0-34-640-121-C Mouser Part No 691-CA2B034640121C	Carling Technologies	Circuit Breakers 2-pole, Handle, 40 amp circuit breaker, Stud 10-32 terminals, UL 1077 Recognized CSA Accepted Learn More about Carling Technologies carlingCcircuitbreakers	Datasheet	53In Stock	$105.24 $89.19 $78.61 $71.05 $69.57	Min.: 1 Mult.: 1
Circuit Breakers AB2B0266405B1C AB2-B0-26-640-5B1-C Carling Technologies 1: $96.41 3In Stock	Mfr. Part No. AB2-B0-26-640-5B1-C Mouser Part No 691-AB2B0266405B1C	Carling Technologies	Circuit Breakers AB2B0266405B1C Learn More about Carling Technologies carling hydraulic magnetic circuit breakers	Datasheet	3In Stock	$96.41 $73.54 $69.83 $64.89 View $59.43 Quote	Min.: 1 Mult.: 1
Circuit Breakers EA1B0346407DEUB EA1-B0-34-640-7DE-UB Carling Technologies 1: $56.41 9In Stock	Mfr. Part No. EA1-B0-34-640-7DE-UB Mouser Part No 691-EA1B0346407DEUB	Carling Technologies	Circuit Breakers EA1B0346407DEUB	Datasheet	9In Stock	$56.41 $46.79 $39.98 $37.09 View $34.29 $33.20 Quote	Min.: 1 Mult.: 1
Fuse Clips MAXI AUTO FUSE CLIP, THM 3581-1 Keystone Electronics 1: $0.86 1,120In Stock New At Mouser	Mfr. Part No. 3581-1 Mouser Part No 534-3581-1 New At Mouser	Keystone Electronics	Fuse Clips MAXI AUTO FUSE CLIP, THM	Datasheet	1,120In Stock	$0.86 $0.681 $0.646 $0.64 View $0.395 $0.388 $0.38	Min.: 1 Mult.: 1
Circuit Breakers SHORTSTOP BREAKER 123B40-00P-HA Bussmann / Eaton 1: $5.56 12In Stock	Mfr. Part No. 123B40-00P-HA Mouser Part No 504-123B40-00P-HA	Bussmann / Eaton	Circuit Breakers SHORTSTOP BREAKER	Datasheet	12In Stock	$5.56 $5.15 $4.97 $3.87 View $3.38 $2.86 $2.65 $2.51 $2.48	Min.: 1 Mult.: 1
Circuit Breakers AUTOMOTIVE CIRC BRK CB185-40 Bussmann / Eaton 1: $358.67 2In Stock	Mfr. Part No. CB185-40 Mouser Part No 504-CB185-40	Bussmann / Eaton	Circuit Breakers AUTOMOTIVE CIRC BRK	Datasheet	2In Stock	$358.67 $316.79	Min.: 1 Mult.: 1
Circuit Breakers AA2B0246405B1C AA2-B0-24-640-5B1-C Carling Technologies 1: $96.41 9In Stock	Mfr. Part No. AA2-B0-24-640-5B1-C Mouser Part No 691-AA2B24645B1C	Carling Technologies	Circuit Breakers AA2B0246405B1C Learn More about Carling Technologies carling hydraulic magnetic circuit breakers	Datasheet	9In Stock	$96.41 $80.65 $73.87 $72.33 View Quote	Min.: 1 Mult.: 1
Circuit Breakers 2 POLE 40 AMP CA2-B0-24-640-121-C Carling Technologies 1: $119.45 20In Stock	Mfr. Part No. CA2-B0-24-640-121-C Mouser Part No 691-CA2-B0-24640121C	Carling Technologies	Circuit Breakers 2 POLE 40 AMP Learn More about Carling Technologies carlingCcircuitbreakers	Datasheet	20In Stock	$119.45 $99.05 $91.32 $75.57 View $69.79 Quote	Min.: 1 Mult.: 1
Circuit Breakers CIRCUIT BREAKER - SHORT STOP 121B40-B2P-KA Bussmann / Eaton 1: $4.86 610In Stock	Mfr. Part No. 121B40-B2P-KA Mouser Part No 504-121B40-B2P-KA	Bussmann / Eaton	Circuit Breakers CIRCUIT BREAKER - SHORT STOP	Datasheet	610In Stock	$4.86 $4.43 $4.27 $3.36 View $2.89 $2.45 $2.26 $2.12 $2.01	Min.: 1 Mult.: 1
Circuit Breakers EA1B02664032EFB EA1-B0-26-640-32E-FB Carling Technologies 1: $56.41 1In Stock	Mfr. Part No. EA1-B0-26-640-32E-FB Mouser Part No 691-EA1B02664032EFB	Carling Technologies	Circuit Breakers EA1B02664032EFB	Datasheet	1In Stock	$56.41 $41.71 $39.98 $37.09 View $34.29 $33.20 Quote	Min.: 1 Mult.: 1
Circuit Breakers CT1B216640121C CT1-B2-16-640-121-C Carling Technologies 1: $71.27 1In Stock	Mfr. Part No. CT1-B2-16-640-121-C Mouser Part No 691-CT1B216640121C	Carling Technologies	Circuit Breakers CT1B216640121C Learn More about Carling Technologies carling hydraulic magnetic circuit breakers	Datasheet	1In Stock	$71.27 $59.13 $53.89 $49.03 View $47.54 Quote	Min.: 1 Mult.: 1
Circuit Breakers 1-pole, Handle, 40 amp circuit breaker, Screw 10-32 Bus Type terminals, UL 1077 Recognized CSA Accepted AA1-B0-52-640-5B1-C Carling Technologies 1: $45.82 9In Stock	Mfr. Part No. AA1-B0-52-640-5B1-C Mouser Part No 691-AA1B0526405B1C	Carling Technologies	Circuit Breakers 1-pole, Handle, 40 amp circuit breaker, Screw 10-32 Bus Type terminals, UL 1077 Recognized CSA Accepted Learn More about Carling Technologies carling hydraulic magnetic circuit breakers	Datasheet	9In Stock	$45.82 $41.24 $32.26 $30.21 View $29.03 Quote	Min.: 1 Mult.: 1
Circuit Breakers CIRCUIT BREAKER HYMAG AA2-B0-34-640-5B1-C Carling Technologies 1: $96.41 5In Stock	Mfr. Part No. AA2-B0-34-640-5B1-C Mouser Part No 691-AA2B34645B1C	Carling Technologies	Circuit Breakers CIRCUIT BREAKER HYMAG Learn More about Carling Technologies carling hydraulic magnetic circuit breakers	Datasheet	5In Stock	$96.41 $80.65 $73.87 $71.97 Quote Quote	Min.: 1 Mult.: 1
Circuit Breakers CA1B046640151C CA1-B0-46-640-151-C Carling Technologies 1: $47.86 7In Stock	Mfr. Part No. CA1-B0-46-640-151-C Mouser Part No 691-CA1B046640151C	Carling Technologies	Circuit Breakers CA1B046640151C Learn More about Carling Technologies carling hydraulic magnetic circuit breakers	Datasheet	7In Stock	$47.86 $39.70 $36.63 $31.12 View $29.18 $27.23	Min.: 1 Mult.: 1
Circuit Breakers CA2B034640111C CA2-B0-34-640-111-C Carling Technologies 1: $119.44 9In Stock	Mfr. Part No. CA2-B0-34-640-111-C Mouser Part No 691-CA2B034640111C	Carling Technologies	Circuit Breakers CA2B034640111C Learn More about Carling Technologies carlingCcircuitbreakers	Datasheet	9In Stock	$119.44 $99.04 $84.26 $78.18 View $75.98 Quote	Min.: 1 Mult.: 1
Circuit Breakers CIRCUIT BREAKER - SHORT STOP 121B40-A2P-KA Bussmann / Eaton 1: $4.86 189In Stock	Mfr. Part No. 121B40-A2P-KA Mouser Part No 504-121B40-A2P-KA	Bussmann / Eaton	Circuit Breakers CIRCUIT BREAKER - SHORT STOP	Datasheet	189In Stock	$4.86 $4.43 $2.98 $2.93 View $2.73 $2.32 $2.22 $2.14 $2.11	Min.: 1 Mult.: 1
Circuit Breakers CIRCUIT BREAKER TYPE III 40A 123B40-00P Bussmann / Eaton 1: $5.90 94In Stock	Mfr. Part No. 123B40-00P Mouser Part No 504-123B40-00P	Bussmann / Eaton	Circuit Breakers CIRCUIT BREAKER TYPE III 40A	Datasheet	94In Stock	$5.90 $5.46 $5.27 $4.10 View $3.59 $3.05 $2.68 $2.61	Min.: 1 Mult.: 1
Fuse Holder ATC ADD-A-CIRCUIT; CARDED BP/HHA-RP Bussmann / Eaton 1: $72.84 15In Stock	Mfr. Part No. BP/HHA-RP Mouser Part No 504-BP/HHA-RP	Bussmann / Eaton	Fuse Holder ATC ADD-A-CIRCUIT; CARDED	Datasheet	15In Stock	$72.84 $60.65 $56.02 $46.52 View $42.91 $41.39	Min.: 1 Mult.: 1
Circuit Breakers CX1B01464022A10C CX1-B0-14-640-22A-10C Carling Technologies 1: $78.43 12In Stock	Mfr. Part No. CX1-B0-14-640-22A-10C Mouser Part No 691-CX1B01464022A10C	Carling Technologies	Circuit Breakers CX1B01464022A10C Learn More about Carling Technologies carlingCcircuitbreakers	Datasheet	12In Stock	$78.43 $65.06 $60.96 $51.81 View $47.44 $46.02 Quote	Min.: 1 Mult.: 1
Circuit Breakers DA1B014640121C DA1-B0-14-640-121-C Carling Technologies 1: $55.50 5In Stock	Mfr. Part No. DA1-B0-14-640-121-C Mouser Part No 691-DA1B014640121C	Carling Technologies	Circuit Breakers DA1B014640121C	Datasheet	5In Stock	$55.50 $46.33 $42.03 $39.83 View $37.44 $36.56 Quote	Min.: 1 Mult.: 1