Siemens SIRIUS 3RV MCB, 3P, 20A, 20 → 690V AC, 4 Breaking Capacity

The Siemens Circuit Breaker is an essential component for transformer protection, designed to operate efficiently within an ambient temperature range from -50 °C to +60 °C. Featuring a robust design for high reliability, it ensures continuous operation under various conditions. With an exceptional switching capacity, it is capable of handling substantial operational demands. The circuit breaker is tailored for easy installation on a standard DIN rail and allows for flexible mounting positions.

Optimized for transformer protection
Compact for versatile mounting
Enhanced thermal overload release
Secure mounting mechanism
High electrical endurance for frequent cycling
Advanced short circuit protection
High environmental resilience