What it is and key ratings
The A9F44110: Snap-in 18 mm wide, 10 A C-curve MCB for Acti9 boards. Thermal-magnetic trip, 36 kA Icu at 10-60 V AC, so it handles substantial fault currents at low voltage. 2-module pitch, 78.5 mm deep – fits standard Acti9 panels.
Mounting and wiring considerations
Clip-on DIN rail mount. Terminal accepts 1-25 mm² rigid or 1-16 mm² flexible. Torque to 2 N.m. Padlockable toggle for lockout/tagout.
Declared standards: EN/IEC 60898-1 and EN/IEC 60947-2. Pollution degree 3, overvoltage category IV. IP20 finger-safe.
