The Siemens 3RT2346-1AV00 is a SIRIUS Size S3 contactor with a 400 V AC coil rated at 50 Hz. It fastens via screw and snap-on mounting onto 35 mm DIN rail per DIN EN 60715, and the mounting position allows +/-180° rotation on a vertical surface plus +/-22.5° tilt forward and backward. Main contact switching current at 400 V is rated 3 A; at 24 V it carries 10 A. The coil is AC with screw-type terminals. Operating temperature range is -25 to +60 °C; storage range -55 to +80 °C.
Panel Fit and Wiring
Dimensions are 152 mm deep, 96 mm wide, 140 mm high — the S3 footprint. Clearance: 10 mm upwards, 10 mm downwards, 20 mm forwards, 10 mm at the side. Solid wire connections: 2x (0.5... 1.5 mm²) and 2x (0.75... 2.5 mm²); stranded accepts 6... 70 mm². Two auxiliary switches are attachable. Mechanical service life of the contactor is typically 10,000,000 operations. Arcing time runs 10... 20 ms; AC switching time 10... 21 ms.