5SV3444-8 SIEMENS

The 5SV3444-8 is a four-pole residual current circuit breaker (RCCB) meticulously engineered by Siemens to provide advanced protection against electrical faults. This RCCB is specifically designed to detect residual currents, which are indicative of insulation failures or earth faults, and promptly interrupt the circuit to prevent electrical shocks and fire hazards. Classified as a Type A RCCB, it is sensitive to both alternating current (AC) and pulsating direct current (DC) residual currents, offering enhanced protection compared to standard AC type RCCBs. With a rated current (In) of 40A, this RCCB is suitable for applications with moderate current demands. The 100mA tripping current ensures a balance between sensitivity and immunity to nuisance tripping caused by harmless leakage currents. Operating at a rated voltage (Un) of 400V AC, it is compatible with standard three-phase power systems. The selective tripping characteristic (selective) allows for coordinated protection in multi-circuit installations, ensuring that only the faulty circuit is disconnected, minimizing downtime and maintaining power to other circuits. This feature is crucial in industrial and commercial settings where continuous operation is essential. Siemens' 5SV3444-8 RCCB combines reliability, precision, and advanced functionality to deliver superior electrical safety and protection.