The main current circuit terminates with screw-type terminals, rated for solid conductors up to 4 mm² and stranded up to 25 mm². Key motor ratings: 18.5 kW at AC-2 duty class at 400 V, and 35 A at AC-4 at 400 V. AC-2 covers slip-ring motor starting; At 500 V it delivers 22 kW, and at 690 V it delivers 11.4 kW. Auxiliary contact ratings span the control voltage range: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 0.3 A at 220 V. The coil operates on 50 Hz, with a rated control supply voltage of 230 V at 50 Hz.
The S2 frame measures 55 mm wide, 112 mm high, and 115 mm deep — a standard footprint that fits alongside other SIRIUS S2 components on the same DIN rail. Side-by-side mounting is permitted, so no spacing gaps are needed between contactors in a multi-load panel. Maximum switching rates vary by duty: 1,200 cycles/hour at AC-1 (resistive), 1,000 at AC-3 (motor running), and 300 at AC-4 (plugging/reversing). The arcing time sits between 10 and 15 ms.
RoHS compliance is indicated by a substance prohibitance date of 05/01/2012, aligning with the EU RoHS directive. The part carries the SIRIUS brand and is designed to IEC/EN 60947-4-1 standards for contactors and motor-starters.