The Schneider Electric G12E3A25 is a GoPact MCCB 125, a 3-pole molded case circuit breaker with a thermal-magnetic TM-D trip unit rated at 25 A at 40 °C. It protects distribution circuits against overload (thermal L) and short-circuit (magnetic I) faults. Rated operational voltage is 415 V AC at 50/60 Hz, with a breaking capacity of 15 kA at 380/415 V AC — enough for most light commercial and industrial distribution boards where fault levels stay under that threshold. At 55 °C ambient (the operating max), expect a reduction — check the published derating table for your panel's internal temperature.
Connection pitch is 25 mm, so it pairs with standard busbar systems and DIN-rail terminal blocks in the same enclosure. Dimensions: 130 mm high, 75 mm wide, 60 mm deep.
Rated for 8000 electrical cycles at 415 V at rated current, and 30000 mechanical cycles — suitable for applications where the breaker sees occasional switching, not continuous motor-start duty.
The Annex H covers EMC immunity for circuit breakers with electronic trip units — though this is a thermal-magnetic unit, the standard applies to the product family. Lifecycle status is current production (active). No end-of-life notice or successor part is recorded for this order code.