The Siemens SIRIUS 3RV2321-4CC10 Circuit Breaker is designed for starter combinations and provides reliable short-circuit protection and safe isolation for motor starter assemblies. This Size S0 circuit breaker features a rated current of 22 A with a fixed short-circuit release of 286 A, screw terminal connection, and standard switching capacity. It is optimized for use with Siemens SIRIUS contactors in compact starter combinations, ensuring dependable protection, reduced wiring effort, and efficient operation in industrial automation and control applications.
| Parameter | Specification |
|---|---|
| Brand | Siemens |
| Series | SIRIUS 3RV2 |
| Model Number | 3RV2321-4CC10 |
| Product Type | Circuit Breaker for Starter Combination |
| Frame Size | S0 |
| Application | Starter Combination |
| Rated Current | 22 A |
| Short-Circuit Release (N-Release) | 286 A |
| Number of Poles | 3 |
| Rated Operational Voltage | 20–690 V AC |
| Rated Insulation Voltage | 690 V |
| Rated Impulse Withstand Voltage | 6 kV |
| Frequency | 50/60 Hz |
| Connection Type | Screw Terminal |
| Switching Capacity | Standard |
| Short-Circuit Breaking Capacity | 55 kA at 400 V AC |
| Contactor Combination Size | S00 / S0 |
| Trip Type | Magnetic |
| Degree of Protection | IP20 |
| Mechanical Endurance | 100,000 Operating Cycles |
| Electrical Endurance | 100,000 Operating Cycles |
| Rated Operating Power AC-3 (400V) | 11 kW |
| Mounting | DIN Rail / Panel Mounting |
| Application | Motor Starter Short-Circuit Protection |
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