The Schneider Electric MGP0252L31 is a PowerPacT 4 molded case circuit breaker (MCCB), 2-pole, rated 25 A at 40 °C with a TM-D thermal-magnetic trip unit providing LI protection — thermal overload (L) and magnetic short-circuit (I). It is rated for 415 V AC 50/60 Hz operational voltage and delivers 25 kA Icu / Ics ultimate and service short-circuit breaking capacity at that voltage, meeting Category A utilisation per BS EN 60947-2.
This part is officially obsolete per the manufacturer's lifecycle status.
The 25 A thermal-magnetic trip unit is fixed — no adjustment range beyond the 25 A setting — so it must match the continuous load current of the protected circuit exactly. The 2-pole configuration (L3- phase connection) makes it a single-phase or two-pole distribution breaker, not a three-phase device. Rated insulation voltage is 750 V and impulse withstand is 8 kV, giving headroom for 415 V AC systems. Mechanical durability is 20,000 cycles; electrical durability is 20,000 cycles at rated current and 10,000 at 2× In — figures that matter for frequent switching applications like lighting or motor control centres.
Deployment context
Panel-mounted via backplate, with horizontal or vertical orientation allowed — typical for distribution boards where the breaker is bolted to a mounting plate rather than snapped onto DIN rail. Occupies 2 modules of 35 mm width, so panel layout can be planned accordingly.