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

45 mm Circuit Breakers

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

Results: 499

Applied Filters:

Length = 45 mm

Manufacturer

Series

Product

Type

Current Rating

Voltage Rating AC

Voltage Rating DC

Number of Poles

Actuator

Minimum Operating Temperature

Illuminated

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 (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Product	Type	Current Rating	Voltage Rating AC	Number of Poles	Actuator	Minimum Operating Temperature	Maximum Operating Temperature	Illuminated
Circuit Breakers CIRCUIT BREAKER,SZ00,8.2A,SCREW 3RV10110GA10 Siemens 1: $339.67 3In Stock	Mfr. Part No. 3RV10110GA10 Mouser Part No 982-3RV10110GA10	Siemens	Circuit Breakers CIRCUIT BREAKER,SZ00,8.2A,SCREW Learn More about Siemens 3rv1 motor starter protectors	Datasheet	3In Stock	$339.67 $291.65 $281.18 $267.52 View Quote	Min.: 1 Mult.: 1	3RV1	Circuit Breakers	Motor Protection	630 mA	690 VAC	3 Pole	Toggle	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers CIRCUIT-BREAKER, SIZE S00 3RV10110JA10 Siemens 1: $381.16 4In Stock	Mfr. Part No. 3RV10110JA10 Mouser Part No 982-3RV10110JA10	Siemens	Circuit Breakers CIRCUIT-BREAKER, SIZE S00 Learn More about Siemens 3rv1 motor starter protectors	Datasheet	4In Stock	$381.16 $308.45 $298.64 View Quote	Min.: 1 Mult.: 1	3RV1	Circuit Breakers	Motor Protection	1 A	690 VAC	3 Pole	Toggle	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP,GROUP TAP,S00,CL10,0.9-1.25A,SCREW 3RV10110KA10 Siemens 1: $375.88 3In Stock	Mfr. Part No. 3RV10110KA10 Mouser Part No 982-3RV10110KA10	Siemens	Circuit Breakers MSP,GROUP TAP,S00,CL10,0.9-1.25A,SCREW Learn More about Siemens 3rv1 motor starter protectors	Datasheet	3In Stock	$375.88 $305.59 $287.28 View Quote	Min.: 1 Mult.: 1	3RV1	Circuit Breakers	Motor Protection	1.25 A	690 VAC	3 Pole	Toggle	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP,GROUP TAP,S00,CL10,1.8-2.5A,SCREW 3RV10111CA10 Siemens 1: $399.44 2In Stock	Mfr. Part No. 3RV10111CA10 Mouser Part No 982-3RV10111CA10	Siemens	Circuit Breakers MSP,GROUP TAP,S00,CL10,1.8-2.5A,SCREW Learn More about Siemens 3rv1 motor starter protectors	Datasheet	2In Stock	$399.44 $318.42 $300.30 View Quote	Min.: 1 Mult.: 1	3RV1	Circuit Breakers	Motor Protection	2.5 A	690 VAC	3 Pole	Toggle	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers CIRCUIT-BREAKER, SIZE S00, 3RV10111CA15 Siemens 1: $478.14 2In Stock	Mfr. Part No. 3RV10111CA15 Mouser Part No 982-3RV10111CA15	Siemens	Circuit Breakers CIRCUIT-BREAKER, SIZE S00, Learn More about Siemens 3rv1 motor starter protectors	Datasheet	2In Stock	$478.14 $413.74 $404.39 View Quote	Min.: 1 Mult.: 1	3RV1	Circuit Breakers	Motor Protection	2.5 A	690 VAC	3 Pole	Toggle	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP,GROUP TAP,S00,CL10,2.2-3.2A,SCREW 3RV10111DA10 Siemens 1: $399.44 2In Stock 1Expected 2026/10/12	Mfr. Part No. 3RV10111DA10 Mouser Part No 982-3RV10111DA10	Siemens	Circuit Breakers MSP,GROUP TAP,S00,CL10,2.2-3.2A,SCREW Learn More about Siemens 3rv1 motor starter protectors	Datasheet	2In Stock 1Expected 2026/10/12	$399.44 $340.32 $313.61	Min.: 1 Mult.: 1	3RV1	Circuit Breakers	Motor Protection	3.2 A	690 VAC	3 Pole	Toggle	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP,GROUP TAP,S00,CL10,2.8-4A,SCREW 3RV10111EA10 Siemens 1: $400.33 4In Stock	Mfr. Part No. 3RV10111EA10 Mouser Part No 982-3RV10111EA10	Siemens	Circuit Breakers MSP,GROUP TAP,S00,CL10,2.8-4A,SCREW Learn More about Siemens 3rv1 motor starter protectors	Datasheet	4In Stock	$400.33 $340.32 $313.61	Min.: 1 Mult.: 1	3RV1	Circuit Breakers	Motor Protection	4 A	690 VAC	3 Pole	Toggle	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP,GROUP TAP,S00,CL10,3.5-5A,SCREW 3RV10111FA10 Siemens 1: $400.57 2In Stock	Mfr. Part No. 3RV10111FA10 Mouser Part No 982-3RV10111FA10	Siemens	Circuit Breakers MSP,GROUP TAP,S00,CL10,3.5-5A,SCREW Learn More about Siemens 3rv1 motor starter protectors	Datasheet	2In Stock	$400.57 $314.82 $297.65 View Quote	Min.: 1 Mult.: 1	3RV1	Circuit Breakers	Motor Protection	5 A	690 VAC	3 Pole	Toggle	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP,GROUP INSTALL,S00,CL10,7-10A,SCREW 3RV10111JA10 Siemens 1: $463.82 2In Stock	Mfr. Part No. 3RV10111JA10 Mouser Part No 982-3RV10111JA10	Siemens	Circuit Breakers MSP,GROUP INSTALL,S00,CL10,7-10A,SCREW Learn More about Siemens 3rv1 motor starter protectors	Datasheet	2In Stock	$463.82 $376.24 $365.43 View Quote	Min.: 1 Mult.: 1	3RV1	Circuit Breakers	Motor Protection	10 A	690 VAC	3 Pole	Toggle	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP,S00,7-10A,SCRW,W.TRANS.AUX.1NO/1NC 3RV10111JA15 Siemens 1: $534.13 1In Stock	Mfr. Part No. 3RV10111JA15 Mouser Part No 982-3RV10111JA15	Siemens	Circuit Breakers MSP,S00,7-10A,SCRW,W.TRANS.AUX.1NO/1NC Learn More about Siemens 3rv1 motor starter protectors	Datasheet	1In Stock	$534.13 $428.66 $418.20 View Quote	Min.: 1 Mult.: 1	3RV1	Circuit Breakers	Motor Protection	10 A	690 VAC	3 Pole	Toggle	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP,GROUP INSTALL,S00,CL10,9-12A,SCREW 3RV10111KA10 Siemens 1: $448.82 2In Stock	Mfr. Part No. 3RV10111KA10 Mouser Part No 982-3RV10111KA10	Siemens	Circuit Breakers MSP,GROUP INSTALL,S00,CL10,9-12A,SCREW Learn More about Siemens 3rv1 motor starter protectors	Datasheet	2In Stock	$448.82 $347.17 $327.70 View Quote	Min.: 1 Mult.: 1	3RV1	Circuit Breakers	Motor Protection	12 A	690 VAC	3 Pole	Toggle	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP S00 0.14-0.2A SCREW 3RV20110BA10 Siemens 1: $238.30 5In Stock	Mfr. Part No. 3RV20110BA10 Mouser Part No 982-3RV20110BA10	Siemens	Circuit Breakers MSP S00 0.14-0.2A SCREW Learn More about Siemens 3rv2 circuit breakers	Datasheet	5In Stock	$238.30 $198.87 $176.60 $153.32	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	200 mA	690 VAC	3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers CIRCUIT BREAKER MSP S00 0.18-0.25A SCREW 3RV20110CA10 Siemens 1: $237.79 1In Stock	Mfr. Part No. 3RV20110CA10 Mouser Part No 982-3RV20110CA10	Siemens	Circuit Breakers CIRCUIT BREAKER MSP S00 0.18-0.25A SCREW Learn More about Siemens 3rv2 circuit breakers	Datasheet	1In Stock	$237.79 $190.93 $177.43 $153.32	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	250 mA	690 VAC	3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP S00 0.22-0.32A SCREW 3RV20110DA10 Siemens 1: $238.54 3In Stock	Mfr. Part No. 3RV20110DA10 Mouser Part No 982-3RV20110DA10	Siemens	Circuit Breakers MSP S00 0.22-0.32A SCREW Learn More about Siemens 3rv2 circuit breakers	Datasheet	3In Stock	$238.54 $191.53 $178.00 $153.78 Quote Quote	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	320 mA	690 VAC	3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP S00 0.28-0.4A SCREW 3RV20110EA10 Siemens 1: $238.54 5In Stock	Mfr. Part No. 3RV20110EA10 Mouser Part No 982-3RV20110EA10	Siemens	Circuit Breakers MSP S00 0.28-0.4A SCREW Learn More about Siemens 3rv2 circuit breakers	Datasheet	5In Stock	$238.54 $200.59 $178.00 $153.78 Quote Quote	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	400 mA	690 VAC	3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP S00 0.28-0.4A SPRING 3RV20110EA20 Siemens 1: $234.47 1In Stock 2Expected 2026/11/18	Mfr. Part No. 3RV20110EA20 Mouser Part No 982-3RV20110EA20	Siemens	Circuit Breakers MSP S00 0.28-0.4A SPRING Learn More about Siemens 3rv2 circuit breakers	Datasheet	1In Stock 2Expected 2026/11/18	$234.47 $204.36 $195.67 $183.35 View Quote	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	400 mA	690 VAC	3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP S00 0.35-0.5A SCREW 3RV20110FA10 Siemens 1: $243.61 5In Stock	Mfr. Part No. 3RV20110FA10 Mouser Part No 982-3RV20110FA10	Siemens	Circuit Breakers MSP S00 0.35-0.5A SCREW Learn More about Siemens 3rv2 circuit breakers	Datasheet	5In Stock	$243.61 $199.47 $186.14 $153.78	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	500 mA	690 VAC	3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP S00 0.45-0.63A SCREW 3RV20110GA10 Siemens 1: $242.23 5In Stock	Mfr. Part No. 3RV20110GA10 Mouser Part No 982-3RV20110GA10	Siemens	Circuit Breakers MSP S00 0.45-0.63A SCREW Learn More about Siemens 3rv2 circuit breakers	Datasheet	5In Stock	$242.23 $202.76 $179.51 $156.03	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	630 mA	690 VAC	3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP S00 0.45-0.63A AUX 1NO 1NC SCREW 3RV20110GA15 Siemens 1: $292.52 1In Stock	Mfr. Part No. 3RV20110GA15 Mouser Part No 982-3RV20110GA15	Siemens	Circuit Breakers MSP S00 0.45-0.63A AUX 1NO 1NC SCREW Learn More about Siemens 3rv2 circuit breakers	Datasheet	1In Stock	$292.52 $258.02 $243.87 $231.33 View Quote	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	630 mA	690 VAC	3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP S00 0.55-0.8A SCREW 3RV20110HA10 Siemens 1: $255.59 5In Stock	Mfr. Part No. 3RV20110HA10 Mouser Part No 982-3RV20110HA10	Siemens	Circuit Breakers MSP S00 0.55-0.8A SCREW Learn More about Siemens 3rv2 circuit breakers	Datasheet	5In Stock	$255.59 $214.95 $195.29 $164.15	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	800 mA	690 VAC	3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP S00 0.55-0.8A SPRING 3RV20110HA20 Siemens 1: $251.98 4In Stock	Mfr. Part No. 3RV20110HA20 Mouser Part No 982-3RV20110HA20	Siemens	Circuit Breakers MSP S00 0.55-0.8A SPRING Learn More about Siemens 3rv2 circuit breakers	Datasheet	4In Stock	$251.98 $200.87 $187.66 $175.78 View Quote	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	800 mA	690 VAC	3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP S00 0.7-1A AUX 1NO 1NC SCREW 3RV20110JA15 Siemens 1: $283.54 2In Stock	Mfr. Part No. 3RV20110JA15 Mouser Part No 982-3RV20110JA15	Siemens	Circuit Breakers MSP S00 0.7-1A AUX 1NO 1NC SCREW Learn More about Siemens 3rv2 circuit breakers	Datasheet	2In Stock	$283.54 $244.56 $229.54 $217.07 View Quote	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	1 A	690 VAC	3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP S00 0.7-1A SPRING 3RV20110JA20 Siemens 1: $255.59 8In Stock	Mfr. Part No. 3RV20110JA20 Mouser Part No 982-3RV20110JA20	Siemens	Circuit Breakers MSP S00 0.7-1A SPRING Learn More about Siemens 3rv2 circuit breakers	Datasheet	8In Stock	$255.59 $214.95 $195.29 $164.15	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	1 A	690 VAC	3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP S00 0.9-1.25A AUX 1NO 1NC SCREW 3RV20110KA15 Siemens 1: $325.50 3In Stock	Mfr. Part No. 3RV20110KA15 Mouser Part No 982-3RV20110KA15	Siemens	Circuit Breakers MSP S00 0.9-1.25A AUX 1NO 1NC SCREW Learn More about Siemens 3rv2 circuit breakers	Datasheet	3In Stock	$325.50 $258.73 $242.79 $232.23 View Quote	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	1.25 A	690 VAC	3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated
Circuit Breakers MSP S00 0.9-1.25A SPRING 3RV20110KA20 Siemens 1: $261.92 3In Stock	Mfr. Part No. 3RV20110KA20 Mouser Part No 982-3RV20110KA20	Siemens	Circuit Breakers MSP S00 0.9-1.25A SPRING Learn More about Siemens 3rv2 circuit breakers	Datasheet	3In Stock	$261.92 $231.88 $219.20 $207.96 View Quote	Min.: 1 Mult.: 1	3RV2	Circuit Breakers	Motor Protection	1.25 A	690 VAC	3 Pole	Rotary	- 20 C	+ 60 C	Non-Illuminated

45 mm Circuit Breakers

Applied Filters:

Customer Service Office

Company

Resources

Support

160 mA
200 mA
250 mA
320 mA
400 mA
500 mA
630 mA
800 mA
1 A
1.25 A
1.4 A
1.6 A
2 A
2.5 A
3 A
3.2 A
4 A
5 A
6.3 A
8 A