What this contactor is and where it lands
The Siemens 3RT2016-2AK61-ZX95 is a SIRIUS power contactor in size S00, rated for switching motor loads in control panels up to the AC-3 duty cycle. It carries a 24 VDC coil with spring-type terminals — no screwdriver needed for the coil connection, which speeds up panel wiring and eliminates torque checks on that circuit. The main power terminals accept solid or stranded conductors from 0.5 to 4 mm², and the contactor snaps onto a 35 mm DIN rail per DIN EN 60715, with screw-mount as an alternative. Mechanical life is typical 30 million operations, so it holds up in high-cycle applications like conveyor or pump control.
Key ratings and what they mean for fit
The AC-3 rating governs motor switching: at 400 V it handles 3 A, and at 230 V it is rated for 1 hp. That means it fits small motor loads — fractional to about 1.5 kW at 400 V three-phase. The AC-1 resistive rating is higher but not the limiting factor for motor duty. Operating frequency at AC-3 is 750 cycles per hour, which is typical for a size S00 contactor in cyclic service. The auxiliary switch is built in, so no separate add-on block is needed for basic feedback or interlocking.
Mounting and clearance
The contactor measures 45 mm wide, 70 mm high, and 73 mm deep — a compact footprint that fits tightly packed DIN-rail assemblies. Clearance requirements: 10 mm upwards, 10 mm forwards, 10 mm downwards, and 6 mm at the sides. The mounting position allows +/-180° rotation on a vertical surface and can be tilted forward/backward by +/-22.5°, so panel layout is flexible. Operating temperature range is -25 to +60 °C; storage range is -55 to +80 °C.