5SV3642-8 SIEMENS

The 5SV3642-8 is a four-pole, type A, selective residual current operated circuit breaker (RCCB) designed and manufactured by Siemens. This RCCB provides enhanced protection against electrical shock and fire hazards by continuously monitoring the balance of current flow in a circuit. In the event of a ground fault or leakage current exceeding the rated threshold, the device swiftly interrupts the power supply, minimizing the risk of injury or damage. With a rated current (In) of 25A and a residual current tripping value of 300mA, this RCCB is suitable for applications where a higher level of sensitivity is required. The 'selective' characteristic ensures that only the faulty circuit is disconnected, preventing unnecessary tripping of upstream protective devices and maintaining power to other circuits. It is designed for a rated AC voltage (Un AC) of 400V, making it compatible with standard three-phase power systems. The 5SV3642-8 is ideal for use in industrial, commercial, and residential settings where reliable and selective residual current protection is essential. Its robust construction and adherence to international standards guarantee long-term performance and safety. This device contributes significantly to electrical safety by detecting and responding to leakage currents that could otherwise go unnoticed.