SIRIUS 3RV2 Circuit Breakers

Siemens SIRIUS 3RV2 Circuit Breakers are motor starter protectors that reliably protect equipment during a short circuit. When a short-circuit event (>13 times the rated current) occurs, the short-circuit releases isolate the faulty load feeder from the power supply within milliseconds. This quick response avoids fire damage and other significant harm to components. Siemens SIRIUS 3RV2 Circuit Breakers feature a lockable operating mechanism for manual closing/opening that prevents unauthorized access and ensures trouble-free operation. These motor starter protectors come in various sizes and are designed for flexible assembly using screw and spring-type terminals. These circuit breakers cover all the tasks of protecting motors, starters, transformers, and UL 489 applications.

Results: 708
Select Image Part # Mfr. Description Datasheet Availability Pricing (JPY) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Siemens Circuit Breakers MSP S0 20-25A SCREW 6In Stock
¥67,350.2
¥56,829.5
¥53,399.5
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S0 27-32A SCREW 6In Stock
¥85,109.6
¥71,813.3
¥67,486.4
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S0 27-32A AUX 1NO 1NC SCREW 7In Stock
¥92,135.7
¥76,776.4
¥70,740.3
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S0 34-40A SCREW 4In Stock
¥105,764.2
¥92,937.9
¥87,308.8
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S0 23-28A SCREW 12In Stock
¥83,581.5
¥69,233.8
¥63,794
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S2 CLASS 20 22-32A SCREW 5In Stock
¥105,498.4
¥92,703.7
¥87,089.6
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S2 CLASS 10 62-73A SCREW 3In Stock
¥121,500.5
¥101,032
¥93,070.8
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S2 CLASS 10 35-45A SCREW 5In Stock
¥107,564.7
¥94,520.9
¥88,795.4
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S2 CLASS 10 35-45A SCREW 3In Stock
¥129,705.8
¥116,688.6
¥109,621
Min.: 1
Mult.: 1
Siemens Circuit Breakers CIRCUIT BREAKER. SCREW-TYPE. 50 A 3In Stock
¥132,252.1
Min.: 1
Mult.: 1
Siemens Circuit Breakers CIRCUIT BREAKER. SCREW-TYPE. 100 A 3In Stock
¥169,199.4
Min.: 1
Mult.: 1
Siemens Circuit Breakers Circuit breaker screw-type 93 A 3In Stock
¥151,428.4
Min.: 1
Mult.: 1
Siemens Circuit Breakers TMCB UL489 S00 10A SCREW 5In Stock
¥103,556.7
¥90,997.9
¥85,486.7
Min.: 1
Mult.: 1
Siemens Circuit Breakers TMCB UL489 S00 12.5A SCREW 4In Stock
¥103,556.7
¥90,997.9
¥85,486.7
Min.: 1
Mult.: 1
Siemens Circuit Breakers TMCB UL489 S00 15A SCREW 5In Stock
¥109,132.7
¥95,897.8
¥90,091
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S00 0.14-0.2A SCREW 5In Stock
¥40,335.7
¥34,749.8
¥30,288.3
¥25,461.5
Min.: 1
Mult.: 1
Siemens Circuit Breakers CIRCUIT BREAKER MSP S00 0.18-0.25A SCREW 1In Stock
¥40,835.7
¥34,749.8
¥31,203.5
¥26,574.3
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S00 0.22-0.32A SCREW 3In Stock
¥40,963.6
¥34,859.4
¥31,301.5
¥26,657.4
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S00 0.28-0.4A SCREW 5In Stock
¥40,963.6
¥34,859.4
¥31,301.5
¥26,657.4
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S00 0.28-0.4A SPRING 1In Stock
2Expected 11/18/2026
¥40,963.6
¥34,859.4
¥31,301.5
¥26,657.4
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S00 0.35-0.5A SCREW 5In Stock
¥40,963.6
¥34,859.4
¥31,301.5
¥26,657.4
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S00 0.45-0.63A AUX 1NO 1NC SCREW 1In Stock
¥50,165.5
¥41,571.5
¥38,704.6
¥33,897.7
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S00 0.55-0.8A SCREW 5In Stock
¥43,126.2
¥37,438.9
¥33,037.3
¥28,630.7
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S00 0.55-0.8A SPRING 4In Stock
¥43,126.2
¥37,438.9
¥33,037.3
¥28,630.7
Min.: 1
Mult.: 1
Siemens Circuit Breakers MSP S00 0.7-1A AUX 1NO 1NC SCREW 2In Stock
¥52,720.1
¥43,689.3
¥40,676.2
¥35,625.1
Min.: 1
Mult.: 1