What it is and what it does
The Siemens 3RT2036-1AV00 is a SIRIUS power contactor in Size S2, designed for switching motor loads and resistive loads in industrial control panels. It mounts on a 35 mm DIN rail per DIN EN 60715 using either screws or snap-on fastening. Rated 52 A at 480 V, this contactor handles motor starting and running currents typical for pump, fan, and conveyor applications in that voltage class. The operating temperature range of -25 to +60 °C covers most indoor panel environments.
Key ratings and what they mean for fit
The 52 A rating at 480 V is the AC-3 motor switching current — the value that governs contactor sizing for standard three-phase induction motors. For resistive loads (AC-1), the maximum mechanical switching rate is 1 000 operations per hour, while AC-3 duty allows up to 800 operations per hour. Auxiliary contacts are included (Auxiliary Switch: Yes), so you don't need a separate add-on block for basic status feedback or interlocking in many circuits. The magnet coil uses screw-type terminals, and main contact connections accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded wire — sized for typical control wiring.
Mounting and integration
The contactor fits a 55 mm wide DIN-rail footprint (Width: 55 mm) and stands 114 mm tall with a depth of 130 mm. Clearance requirements: 10 mm upwards, 10 mm forwards, 10 mm downwards, and 6 mm at the side. Mounting position allows ±180° rotation on a vertical surface and ±22.5° tilt forward/backward.
Lifecycle and sourcing
For a BOM line or a line-down replacement, this order code is the direct fit. Sourcing is straightforward: quoted to order against an RFQ through normal supply.