The Size S2 frame (174 mm deep, 55 mm wide, 114 mm tall) determines the DIN-rail footprint and the clearance you need around it: 10 mm upwards, forwards, and downwards, and 6 mm at the side for arc flash and heat dissipation.
Switching duty and auxiliary contact capacity
Maximum switching frequency varies by duty: 1 200 cycles/hour at AC-1 (resistive), 1 000 at AC-3 (motor run), and 300 at AC-4 (plugging/inching). The main contacts are 3-pole normally open (3 NO). Auxiliary contacts are not fitted on this variant — the order code suffix indicates no built-in aux switch, so you add a separate auxiliary contact block if needed. When used for control-circuit switching, the auxiliary contact ratings are: 6 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 3 A at 400 V. These are the make/break capacities for the coil or signal circuit, not the main power path.