The Schneider Electric MGP0251L2 is a PowerPacT 4 molded case circuit breaker (MCCB) — one pole, rated 25 A at 40 °C, for 230 V AC 50/60 Hz distribution. That LI protection curve is what you expect from a standard distribution breaker — no earth-leakage function built in.
Both Icu (ultimate) and Ics (service) breaking capacity are 25 kA at 230 V AC. The 8 kV impulse withstand (Uimp) and 750 V rated insulation voltage (Ui) give it headroom for transient-heavy environments.
Panel-mounted via backplate, accepts horizontal or vertical orientation. It takes one 35 mm module width. The toggle control is manual — no remote trip or shunt trip option in this variant. Rated for isolation per BS EN 60947-2, so it doubles as a visible-break disconnect in the right circuit.
Durability in the field
Mechanical endurance is 20,000 cycles. Electrical endurance at rated load: 20,000 cycles at 277 V at In/2, and 10,000 cycles at 277 V at full In. That is typical for a molded case breaker in this class — plenty for a distribution panel that sees occasional switching, not a motor-starting duty cycle.