What It Is and Where It Fits
The Siemens 3RT2016-1AU02 is a SIRIUS power contactor in the compact Size S00 frame, designed for switching motor loads and resistive loads in control panels. It is rated for a 24 VDC coil and carries a 10 A rated operational current at 24 V. The contactor mounts via screw and snap-on onto a 35 mm DIN rail per DIN EN 60715, making it a direct fit for standard panel layouts. Its operating temperature range of -25 to +60 °C covers most industrial enclosure environments without derating.
Key Ratings and What They Mean for Your Panel
The 10 A rating at 24 V is the contactor's rated operational current for its main contacts under AC-1 (resistive) or AC-3 (motor) duty at that coil voltage. For motor switching, the AC-3 maximum switching frequency is 750 cycles per hour, which suits conveyor and pump cycling without overheating the coil or contacts. The mechanical life of 30,000,000 operations indicates the contactor's endurance under no-load or light-load switching; actual electrical life will be lower and depends on the load current and switching category. The screw-type terminals on the magnet coil accept solid or stranded wire from 0.5 to 4 mm², with dual-wire capacity up to 2x 1.5 mm² solid or 2x 2.5 mm² stranded. This covers standard control wiring for 24 VDC circuits. The auxiliary switch is included, providing a normally open or closed feedback contact for PLC or status indication.
Mounting and Clearance
The contactor's dimensions are 58 mm high, 45 mm wide, and 73 mm deep. For side-by-side mounting on DIN rail, maintain 6 mm clearance at the side for heat dissipation and arc flash. Vertical clearance above and below is 10 mm; forward clearance is also 10 mm. The mounting position allows +/-180° rotation on a vertical surface and +/-22.5° tilt forward/backward, giving flexibility in tight enclosures.