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.

All Results (771)

Select Image Part # Mfr. Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Siemens Circuit Breakers TMCB UL489 S00 4A SCREW 3In Stock
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Siemens Circuit Breakers TMCB UL489 S00 5A SCREW 3In Stock
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Siemens Circuit Breakers TMCB UL489 S00 6.3A SCREW 1In Stock
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Siemens Circuit Breakers TMCB UL489 S00 10A SCREW 1In Stock
5Expected 8/28/2026
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Siemens Circuit Breakers TMCB UL489 FOR XFRMR S00 1.6A SCREW 1In Stock
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Siemens Circuit Breakers TMCB UL489 FOR XFRMR S00 5A SCREW 3In Stock
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Siemens Auxiliary Contacts LATERAL AUXILIARY SWITCH 1NO+1NC SCREW 44In Stock
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Siemens Auxiliary Contacts LATERAL AUXILIARY SWITCH 2NO SCREW 7In Stock
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Siemens Circuit Breaker Accessories TRANSVERSE AUX. SWITCH 1CO SCREW 8In Stock
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Siemens Auxiliary Contacts TRANSVERSE AUX. SWITCH 2NO SCREW 7In Stock
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Siemens Auxiliary Contacts LATERAL AUXILIARY SWITCH 2NO+2NC SCREW 6In Stock
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Siemens Auxiliary Contacts LATERAL AUXILIARY SWITCH 1NO+1NC SPRING 3In Stock
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Siemens Auxiliary Contacts TRANSVERSE AUX. SWITCH 1NO+1NC SPRING 18In Stock
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Siemens Auxiliary Contacts TRANSVERSE AUX. SWITCH 2NO SPRING 9In Stock
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Siemens Circuit Breaker Accessories UNDERVOLTAGE RELEAS AC 110-120V 50/60HZ 4In Stock
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Siemens Circuit Breaker Accessories UNDERVOLTAGE RELEASE AC 230-240V 50/60HZ 7In Stock
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Siemens Circuit Breaker Accessories SHUNT RELEASE, AC 20-24V, 50/60HZ 5In Stock
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Siemens Circuit Breaker Accessories SHUNT RELEASE, AC 90-110V, 50/60HZ 1In Stock
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Siemens Circuit Breaker Accessories SHUNT RELEASE, AC 210-240V, 50/60HZ 5In Stock
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Siemens Circuit Breaker Accessories 3-PH BUSBAR LEFT INFEED FOR 2 S00/S0 MSP 4In Stock
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Siemens Circuit Breaker Accessories 3-PH BUSBAR RIGHT INFEED FR 2 S00/S0 MSP 5In Stock
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Siemens Circuit Breaker Accessories 3-PH BUSBAR EXTENSION FOR 2 MSP S00/S0 6In Stock
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Siemens Circuit Breaker Accessories 3-PH BUSBAR EXTENSION FOR 3 S00/S0 MSP 5In Stock
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Siemens Circuit Breaker Accessories LINE CONNECTOR SIZE S00 SPRING 5In Stock
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Siemens Contactor Accessories CONTACTOR BASE S00 FOR 3RV29 1In Stock
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