Its headline rating is 125 A at 400 V AC (50/60 Hz) in utilisation category AC-22A, which covers switching of mixed resistive and inductive loads — typical for isolating motor control centres or distribution sub-circuits. The 6 kV rated impulse withstand voltage (Uimp) and pollution degree 3 rating mean it's designed for industrial environments where transient overvoltages and conductive pollution are expected.
Fixed DIN-rail mount, 54 mm wide — three poles in a standard 9 mm pitch count of 6. Tunnel-type terminals accept 6–50 mm² rigid or 6–35 mm² flexible cable, with a 3.5 N.m tightening torque and 14 mm strip length.