The C10M2TM025 is a Schneider Electric ComPacT NSX100M moulded-case circuit breaker, 2-pole, with a fixed thermal-magnetic TM-D trip unit rated 25 A at 40 °C. At 415 V AC the breaking capacity is still 25 kA Icu, which covers most European distribution boards.
Mounts fixed to a backplate — no DIN-rail adapter here. The 70 mm width and 161 mm height fit the standard ComPacT NSX cutout; depth is 86 mm, which leaves room for front-facing cable connections on both line and load sides. IP40 enclosure protection means it is fine inside a cabinet but not for washdown environments.
No end-of-life notice or successor has been issued. No second-source or cross-reference exists within the ComPacT family that matches the exact 25 A TM-D 2P configuration without a trip-unit swap.
What the trip unit does
The thermal element responds to sustained overcurrents; the magnetic element trips instantaneously on high fault currents. No earth-leakage protection is built in — that requires a separate Vigi add-on or an external RCD. Power dissipation is 4.01 W per pole, so for a 2-pole breaker expect about 8 W of heat inside the enclosure at rated load.