The Siemens SENTRON 5SU1656-0KK32 is a 2-pole (1P+N) residual current circuit breaker with overcurrent protection — an RCBO — rated 32 A at 30 °C with a Type B tripping characteristic. It clears faults at 6 kA per EN 60898 and 15 kA per IEC 60947-2, so it handles both residential and light commercial distribution board duty. The residual current type is AC, meaning it detects sinusoidal AC fault currents only.
Current derating and panel fit
Rated current drops from 32 A at 30 °C to 24.64 A at 70 °C — a meaningful derating curve if the panel runs hot. The unit is 36 mm wide (2 modular units) and 77 mm deep, with a 70 mm installation depth. Mounting position is any, and the supply cord can enter from top or bottom. IP20 with the distribution board installed and conductors connected.
Lifecycle and sourcing
Marked as current production. No EOL notice or successor assigned. Sourced and quoted to order against an RFQ through independent distribution — availability and current pricing confirmed at quote time.