5SV3746-4 SIEMENS

The 5SV3746-4 is a four-pole residual current operated circuit breaker (RCCB) meticulously engineered by Siemens to provide comprehensive protection against electrical faults. This RCCB is designed to detect residual currents, which indicate insulation failures or earth faults, and promptly interrupt the circuit to prevent electrical shocks and fire hazards. Featuring a Type B tripping characteristic, it is suitable for circuits with sensitive electronic equipment where pulsating DC residual currents may occur. The short-time delayed tripping mechanism ensures selectivity in cascaded installations, preventing nuisance tripping due to transient faults. With a rated current (In) of 63 A and a residual current (IΔn) of 500 mA, this RCCB is ideal for applications requiring a balance between sensitivity and immunity to unwanted tripping. It is designed for a rated voltage (Un AC) of 400 V, making it suitable for three-phase power systems commonly found in industrial and commercial settings. The 5SV3746-4 offers reliable protection for both people and equipment, enhancing electrical safety in diverse applications. Its robust construction and adherence to international standards ensure long-lasting performance and compliance with safety regulations. This Siemens RCCB is a crucial component for any electrical installation prioritizing safety and reliability.