The Siemens SIRIUS 3RT5065-6AC36 is a size S10 power contactor rated for 132 kW at 400 V AC in AC-3 duty — meaning it handles the inrush and breaking of squirrel-cage motors up to that power. The coil accepts 36 V AC or DC, so it can be driven from a control transformer or a 36 VDC supply without a separate rectifier. Three main poles with bar connections carry the motor current; the built-in auxiliary contact block gives you 2 NO and 2 NC for feedback or interlocking. This is a panel-mount contactor — screw fixing to a vertical surface, with some tilt allowance for alignment. The bar terminals on the main circuit are sized for 185 mm² cable at 40 °C, which matches the 330 A continuous rating at that temperature. At 60 °C ambient, the continuous rating drops to 300 A — something to watch if the panel runs hot.
Mounting is screw fixing to a vertical surface — no DIN rail clip on this size. The contactor can be rotated ±90° or tilted ±22.5° front-to-back, which helps when the gland plate or busbars force an odd angle. The main circuit terminals accept 185 mm² cable at 40 °C, or 2/0 to 500 kcmil AWG. Auxiliary and control circuit terminals are screw-type, accepting 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) finely stranded with ferrules. Strip length is not stated here, but 8 mm is typical for this class — verify against the terminal marking on the part.