SIRIUS reversing starter — S0 frame, 20 A AC-3
The 3RA2220-4BD26-0AP0: It snaps onto 60 mm busbar systems, vertical mounting only, with screw-type terminals on the main current circuit.
The supplied contactor is a 3RT2026-1AP00; the link module 3RA2921-1AA00 ties the pair together. Both are captive in the assembly — no separate ordering for the reversing pair.
Panel fit — S0 footprint and clearances
Dimensions are 155 mm deep, 90 mm wide, 260 mm tall — the S0 frame fits standard 60 mm busbar centers with the snap-on fastening method. Required clearances: 50 mm upwards, 32 mm forwards, 10 mm downwards, 10 mm at the side, 0 mm backwards — plan the enclosure depth and wiring duct placement accordingly. Operating temperature range is -20 to +60 °C; storage and transport range is -50 to +80 °C.