The Siemens SENTRON 5SU9304-6PK10 is an RCBO — a residual-current-operated circuit breaker that combines overcurrent protection and earth-leakage detection in a single 1-module-wide (18 mm) package. It's rated 10 A, B-curve, with a 30 mA residual-current trip, Type A (pulsating DC and AC fault currents).
Snaps onto standard DIN rail, occupies one modular width (18 mm). Depth is 77 mm, height 125 mm — fits standard enclosures with 70 mm installation depth. Touch protection is built in.
