Main circuit uses screw-type box terminals accepting 2x (0.75 to 25 mm²) stranded or 1x (0.75 to 35 mm²) stranded, with AWG equivalents of 2x (18 to 2) or 1x (18 to 2). Auxiliary and control circuits use separate screw terminals sized for 2x (0.5 to 1.5 mm²) solid or 2x (0.75 to 2.5 mm²) solid — distinct from the main power terminals, so control wiring stays segregated. The auxiliary switch is transverse-design and field-installable, with ratings of 1 A at 24 V, 0.5 A at 230 V, and 0.15 A at 60 V — enough for PLC digital inputs or contactor coils.
Rated for operation from -20 to +60 °C, storage and transport from -50 to +80 °C, with shock resistance of 25 g for 11 ms — survives shipping and panel vibration. Rated insulation voltage is 690 V, and the maximum AC-3 operating voltage matches at 690 V, with a maximum switching frequency of 15 operations per hour in AC-3 duty.