What this contactor is and what it handles
For AC-4 reversing or inching duty, it's rated 15.5 A at 400 V. The mechanical endurance is 10 million operations typical, which means it outlasts most machines it's controlling.
Ratings that matter for fit
The 45 mm width and 85 mm height fit the S0 footprint — same as other SIRIUS S0 contactors, so swapping into an existing panel doesn't require re-drilling the mounting plate. Depth is 90 mm, which matters for shallow enclosures. Main terminals are screw-type, accepting 2x (0.25 to 2.5 mm²) solid or 2x (1 to 2.5 mm²) stranded, up to 2x 10 mm² maximum. AWG equivalents are 2x (16 to 12) solid and 2x (14 to 10) stranded, with 1x 8 AWG as the largest single conductor. That's enough for the full rated current without pigtailing. Front protection is IP20 — safe for finger contact in a closed panel.