The Siemens 5SU1654-6KK10 is a 1P+N RCBO (residual current circuit breaker with overcurrent protection) from the SENTRON family, combining a B-curve miniature circuit breaker and a 300 mA Type A residual current device in a single 2-module-wide (36 mm) housing. Rated 10 A at 30 °C ambient, it derates to 9.5 A at 40 °C, 9 A at 50 °C, and 8 A at 70 °C — the thermal curve governs actual load capacity in a warm enclosure.
Fit and installation
Halogen-free and silicon-free construction suits environments where outgassing or contamination is a concern, such as medical or clean-room adjacent panels.