The C10H4TM025C is a 25 A, 4-pole ComPacT NSX100H moulded-case circuit breaker (MCCB) from the Schneider Electric ComPacT range. It uses a thermal-magnetic TM-D trip unit for overload (L) and short-circuit (I) protection. The H breaking capacity code means 70 kA Icu at 415 V AC, 50/60 Hz, per IEC 60947-2 — enough to handle high-fault distribution panels without cascading upstream.
Trip unit rating is 25 A at 50 °C, so this breaker carries a 25 A continuous load in a 50 °C ambient. Breaking capacity is 100 kA Icu at 240 V AC, 70 kA at 415 V, 65 kA at 440 V, 50 kA at 500 V, 35 kA at 525 V, and 10 kA at 690 V — the H frame is sized for high-fault industrial distribution. Mechanical durability is 50,000 cycles; electrical durability is 50,000 cycles at 440 V at half rated current, 30,000 at full rated current. That's a solid service life for a distribution MCCB in a panel that sees regular switching.
Mounts on a backplate, flat on the back, in horizontal or vertical orientation. IP40 enclosure protection keeps out tools and wires; IK07 impact resistance handles accidental bumps during installation.