What it is and where it fits
The Siemens 3RT2016-1BG41 is a SIRIUS power contactor in Size S00, the smallest frame in the series, designed for switching motor loads and resistive loads in control panels. It mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715, so it drops into a standard panel layout without adapter plates. The 45 mm width and 73 mm depth keep the footprint tight for high-density enclosures.
Key ratings and what they mean for the buyer
The coil is rated 24 V DC, and the auxiliary contacts are rated 10 A at 24 V DC — that is the current the built-in auxiliary switch can break in a DC control circuit. For AC loads, the contactor is rated for 1 000 switching cycles per hour under AC-1 (resistive) and 750 cycles per hour under AC-3 (motor) duty, so it handles frequent cycling on a conveyor or pump without overheating. The operating temperature range of -25 to +60 °C means it can sit in a non-climate-controlled enclosure near a hot machine, but derating may apply above 40 °C.
Mounting and wiring notes
The contactor accepts solid or stranded conductors from 0.5 to 4 mm², and up to 2x 4 mm² or 2x (0.75 to 2.5 mm²) for paralleled feeds. Screw-type terminals on the magnet coil and main contacts — no special tooling needed. Clearance: 10 mm upwards, downwards, and forwards; 6 mm at the sides. The mounting position allows ±180° rotation on a vertical surface and ±22.5° tilt forward/backward, which helps when fitting into a crowded panel.