What this AS-i reversing starter is and where it fits
The Siemens 3RK1322-1GS02-1AA0 is a SIRIUS AS-Interface compact reversing starter — an electromechanical motor starter with a bimetal overload relay, built into an IP65 enclosure for direct machine-mount or washdown-area installation. It's rated for 2.2 kW at 400 V AC-3 duty, which means it handles reversing motor loads up to that power in applications like conveyors, hoists, and small pumps where forward/reverse cycling is needed. The setting range of 4.5 to 6.3 A lets it cover a tight band of motor FLA without swapping heater packs.
Key ratings and what they mean for fit
IP65 protection means the enclosure seals against dust ingress and low-pressure water jets — suitable for food processing lines, outdoor conveyor sections, or any area that gets hosed down. The 50 kA breaking capacity at 400 V (Icu) tells you this starter can safely interrupt a short-circuit fault up to that level without upstream damage, which simplifies coordination in a panel with high available fault current. Communication is via AS-Interface protocol (no PROFIBUS DP on this variant), with two integrated inputs for local sensors or pushbuttons, and the bus communication function is built in — no separate gateway module needed.
Physical integration notes
The enclosure measures 270 mm high, 120 mm wide, and 190 mm deep. Tab terminals on the main current circuit accept fast-on connectors — typical for IP65 field-mount starters where screw terminals would be a pain to seal. The 9-pole motor outgoing feeder and 9-pole power connection match standard AS-i cabling schemes. Operating temperature range is -25 to +55 °C, so it's fine for unheated plant areas or outdoor cabinets in moderate climates.