The Siemens 5SU1354-6KV32 is a combined residual-current and miniature circuit breaker (RCBO) — an FI/LS protector in Siemens' 5SU1 series. It integrates Type A residual-current detection at 30 mA with a 1+N-pole thermal-magnetic overcurrent trip characteristic B rated at 32 A, all in a 70 mm wide modular housing. The 10 kA breaking capacity interrupts short-circuit faults. The Type A RCD detects sinusoidal and pulsating DC fault currents.
Integration Notes
The 70 mm width occupies four modular spaces (each 17.5 mm) in a standard distribution board or sub-distribution panel. Terminals accept copper conductors up to 25 mm² for the line and neutral paths.