The Siemens 3RT1036-1AG60-1AA0 is a SIRIUS-brand power contactor in the Size S2 frame, built for switching motor loads in industrial control panels. It's rated 22 kW at AC-2 duty on 400 V, and 30 kW on 500 V — those numbers tell you it's sized for medium-horsepower three-phase motors, not light resistive loads. The screw-type terminals on the main circuit accept stranded wire up to 25 mm², which is typical for the current you'd pull at those power levels.
Mounting and Panel Fit
This contactor screws or snaps onto standard 35 mm DIN rail per EN 50022. The footprint is 55 mm wide by 112 mm tall by 115 mm deep — that's a compact S2 frame that leaves room for an overload relay alongside it. Side-by-side mounting is allowed, so you can gang several on the same rail without a gap, which matters when you're packing multiple motor starters into a panel. The front face carries an IP20 rating, meaning finger-safe terminals once installed; the terminal bodies themselves are IP00, so keep live parts behind the panel door.
What the Ratings Mean for the Buyer
The 22 kW at AC-2 400 V rating is the one to look at for standard squirrel-cage motor starting — AC-2 covers slip-ring motors and some wound-rotor applications, but it's also a conservative benchmark for across-the-line starting of induction motors. The 30 kW at 500 V gives headroom if your line voltage runs higher. Mechanical life is listed at 10 million operations typical, and the coil holds in at 85% of rated voltage at 60 Hz — so it's not going to drop out on a sagging line. Operating temperature spans -25 to +60 °C, storage from -55 to +80 °C, which covers most unheated plant floors and warehouses.