What this contactor is and where it fits
The Siemens SIRIUS 3RT2036-1AV60-0UA0 is a size S2 power contactor, part of the SIRIUS family, designed for switching motor loads and resistive loads in industrial control panels. It mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715, making it a direct fit for standard European panel layouts. The 55 mm width and 130 mm depth are the key dimensions for estimating fill factor on a DIN rail alongside overload relays and busbars.
Switching capacity and duty-cycle reality
Maximum switching rates are specified per duty class: 1,000 operations per hour at AC-1 (resistive), 800/h at AC-3 (squirrel-cage motor starting/running), and 250/h at AC-4 (plugging, inching). The AC-3e rating matches the AC-3 rate at 800/h. These numbers govern contactor life under continuous cycling — a conveyor line running at 600/h on AC-2 duty is well within the 600/h maximum, while a press brake jogging at AC-4 should not exceed 250/h. The auxiliary switch is included, with contact ratings ranging from 10 A at 24 V up to 52 A at 480 V (resistive), covering pilot-duty and small-load switching.
Mounting and environmental constraints
Operating temperature range is -25 to +60 °C, with storage from -55 to +80 °C. The mounting position allows +/-180° rotation on a vertical surface and +/-22.5° tilt forward/backward — useful when the contactor must sit on a slanted subpanel or in a tight enclosure corner. Clearance requirements: 10 mm upward, 10 mm forward, 10 mm downward, and 6 mm to the side for arc flash and heat dissipation. Arcing time is 10 to 20 ms; the coil terminal type is screw-type, accepting 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded wire.