The Schneider Electric C10H3TM032C is a ComPacT NSX100H molded-case circuit breaker from the ComPacT NSX family, a 3-pole unit rated 32 A at 50 °C with a thermal-magnetic TM-D trip unit providing L (overload) and I (short-circuit) protection. This is the H breaking capacity variant, delivering 100 kA Icu at 220/240 V AC and 70 kA at 380/415 V AC per IEC 60947-2 — high enough for most distribution panels where fault current runs hot.
That's enough for most secondary distribution boards fed from a transformer; you'd only need the higher S or L ratings for main incomers or high-fault locations. The 10 kA at 690 V AC covers 690 V systems where fault currents are typically lower.
Overvoltage category III means it's rated for fixed-installation distribution boards. IP40 front face keeps tools and fingers out; IK07 impact resistance handles accidental bumps during panel work. Suitable for isolation per the standard — you can safely use it as a disconnecting means.
Front connections top and bottom make for straightforward bus-bar or cable landing. Five accessory slots accept auxiliary contacts, shunt trips, or under-voltage releases.