The Siemens 5SU1354-0LV25 is a combined residual-current device and miniature circuit breaker (RCBO) in a single 1+N-pole module. It provides Type AC earth-leakage protection at 30 mA sensitivity and overcurrent protection with a B-curve trip characteristic rated at 25 A, all within a 10 kA breaking capacity. The G-type designation indicates a short time delay to prevent nuisance tripping from transient surges.
Deployment Context
The 70 mm depth fits standard DIN-rail enclosures. The 1+N-pole format occupies a single module width, making it suitable for compact sub-distribution boards in residential or light commercial final circuits.