Siemens 5SU1356-0KK32 Specifications, Features & Compatibility Guide

The 30mA residual current sensitivity is essential for life safety, ensuring the device trips in ≤40ms during high-level leakage (5x Idn). Its 6kA breaking capacity is paired with an Energy Limiting Class 3 rating to minimize thermal stress on conductors during faults. The B trip curve is specifically calibrated for residential loads, providing immediate response to short circuits while avoiding nuisance trips.