4 A SIRIUS Motor Protection Circuit Breaker, 20 → 690 V

The Siemens circuit breaker is an advanced protective device specifically designed for motor applications. It provides reliable performance and exceptional functionality, ensuring safe operation in a variety of conditions. With a robust design tailored for motor protection, this circuit breaker features a thermal overload release and is suitable for use in environments with extreme temperatures, ranging from -50 °C to +60 °C. Its versatile construction allows integration with various contactors, making it an ideal choice for electrical engineers seeking dependable circuit protection. Suitable for demanding industrial applications, this product boasts a mechanical service life of up to 500 operating cycles, guaranteeing durability and longevity in high-stress environments.

Thermal overload release for enhanced safety
Suitable for ambient temperatures from -50 °C to +60 °C
Mechanical service life of 500 cycles for durability
Compatible with multiple contactor sizes for flexibility
Compact dimensions allow for easy installation in tight spaces