The Schneider Electric C60H1P63AD is a C60H-series miniature circuit breaker from the Multi9 range, rated 63 A at 40 °C with a D tripping curve (10...14 x In magnetic limit). It protects a single pole and is built for distribution panels on 35 mm symmetrical DIN rail, occupying 2 x 9 mm pitches (18 mm wide). The thermal-magnetic trip unit handles both overload and short-circuit faults, with a breaking capacity of 15 kA Icu at 230...240 V AC per IEC 60947-2 and 10 kA Icn at 230/400 V AC per EN 60898.
The 15 kA Icu at 230...240 V AC means this breaker can safely interrupt fault currents up to that level without welding or exploding — critical for coordinating with upstream devices in a distribution board. At 400...415 V AC the Icu drops to 4 kA, so verify the prospective short-circuit current at the installation point if feeding a 400 V line. The Ics (service breaking capacity) is 7.5 kA at 230...240 V AC, meaning after clearing a fault at that level the breaker remains functional enough to be reclosed.
D-curve application
At 63 A, the magnetic trip fires between 630 A and 882 A, so it will not nuisance-trip on a motor starting surge that lasts a few cycles. For resistive or general-purpose distribution loads, a C-curve breaker would trip faster on moderate overloads; the D curve trades some sensitivity for inrush immunity.
Panel integration
Snaps onto 35 mm symmetrical DIN rail. The tunnel terminals accept up to 25 mm² flexible or 35 mm² rigid cable, with a tightening torque of 3.5 N.m on both line and load sides. The toggle provides local ON/OFF indication and a contact position indicator confirms the state of the main contacts.
Rated for operation from -25 °C to 60 °C and storage from -40 °C to 70 °C. Tropicalisation per IEC 60068-1 (2 levels) means it withstands 95 % relative humidity at 55 °C without condensation damage — suitable for outdoor cabinets in humid climates. The 6 kV rated impulse withstand voltage (Uimp) per IEC 60947-2 ensures the breaker survives transient surges common in industrial networks.