The 100 mA Type AC residual sensitivity detects sinusoidal AC earth faults only; it is not rated for pulsed DC or smooth DC fault currents, so specify this unit only where the load generates no rectified or inverter-fed leakage. The 4-module (72 mm) DIN-rail footprint occupies standard panel space — verify rail length and adjacent device clearance during layout.
Deployment context
Snap-on DIN-rail mounting for panel integration. The 4-module width fits standard 18 mm-per-module enclosures; leave 1 mm clearance per side for latch release.