SIRIUS 3RT1054-6AR36 — Power Contactor, Size S6
The Siemens SIRIUS 3RT1054-6AR36 is a size S6 power contactor rated for a control supply of 440-480 V AC. It is designed for switching motor loads in industrial control panels, with a main circuit accepting stranded conductors from 25 to 120 mm². The coil uses screw-type terminals, and the contactor includes an auxiliary switch block. Dimensions are 172 mm height, 120 mm width, and 170 mm depth. Mounting is by screw fixing through a 9 mm diameter hole. The mounting position allows vertical surface orientation with ±90° rotation and ±22.5° tilt forward/backward, giving flexibility for tight panel layouts. Operating temperature range is -25 to +60 °C; storage range extends from -55 to +80 °C. Mechanical life is rated at 10 million operating cycles typical.
Switching Performance and Duty Ratings
Operate time is 40-60 ms for both AC and DC coil supplies. Arcing time is 10-15 ms. Maximum switching frequencies vary by duty: 800 operations/hour at AC-1, 400/h at AC-2, 1000/h at AC-3 and AC-3e, and 130/h at AC-4. The AC-3 and AC-3e ratings cover standard motor starting and running; the AC-4 figure governs plugging and inching duty, where contact wear is higher. The auxiliary contact ratings are specified at several voltages: 10 A at 24 V, 2 A at 48 V, 2 A at 60 V, and 1 A at 110 V. These are the maximum continuous currents the auxiliary switch can handle at the respective voltage levels.
Termination and Clearance
Main circuit terminals accept stranded wire from 25 to 120 mm². Auxiliary circuit terminals accept solid or stranded conductors: 2x (0.5-1.5 mm²), 2x (0.75-2.5 mm²), or max. 2x (0.75-4 mm²). The coil connection uses screw-type terminals. Minimum clearance distances to adjacent parts: 10 mm upwards, 20 mm forwards, 10 mm downwards, and 10 mm at the side. These must be observed to maintain rated insulation and arc-quenching performance.