The Schneider Electric C10F3TM025C is a ComPacT NSX100F moulded-case circuit breaker with a 25 A TM-D thermal-magnetic trip unit, 3-pole, rated for distribution duty per EN/IEC 60947-2. The TM-D trip provides L (thermal overload) and I (magnetic short-circuit) protection in one block — no electronic adjustments, no add-on modules. The 25 A rating at 50 °C sets the continuous current limit; the breaker carries 36 kA Icu at 380/415 V AC and 85 kA at 220/240 V AC, which means it can interrupt faults up to that level on a 415 V distribution bus without welding or rupturing. This is the figure that determines whether the breaker coordinates with upstream gear in a selective scheme.
Mounting and panel integration constraints
Mounts on a backplate, not a DIN rail — the 105 mm width, 161 mm height, and 86 mm depth need a cut-out and bolt-down clearance typical of panelboard or switchboard builds. The 35 mm connection pitch and front-facing terminals mean busbar or cable terminations stay accessible from the front; no rear-access panel design required. IK07 impact resistance handles accidental tool strikes during commissioning.