5SV3644-8LA SIEMENS

The 5SV3644-8LA is a 4-pole residual current operated circuit breaker (RCCB) from Siemens, designed to provide enhanced protection against electrical hazards. This Type A RCCB is selective, meaning it is designed to coordinate with other protective devices in the electrical system to minimize unnecessary tripping. It has a rated current (In) of 40 A and a residual current tripping value of 300 mA, offering a balance between sensitivity and immunity to nuisance tripping. The RCCB is suitable for use in AC systems with a rated voltage (Un) of 400 V. Furthermore, this device incorporates thermal overload protection, safeguarding against excessive current flow that could damage connected equipment or wiring. Its primary function is to detect earth leakage currents, quickly disconnecting the circuit to prevent electric shock and reduce the risk of fire. The 5SV3644-8LA is ideal for applications where continuity of service is critical, such as in industrial or commercial settings. By selectively tripping only the affected circuit, it minimizes downtime and ensures that other parts of the system remain operational. This RCCB combines residual current protection with overload protection, providing a comprehensive safety solution for electrical installations.