The Siemens SIRIUS 3RT1535-1AV00 is a size S2 power contactor with a 400 V 50 Hz coil draw of 12.5 VA (power factor 0.36 at 60 Hz). Main contacts are screw-type, rated 40 A per NO or NC contact, with a rated impulse withstand voltage of 6 kV for the main circuit and 6 kV for the auxiliary circuit. Mechanical life is 10 million cycles typical; the AC-1 maximum switching rate is 1000 operations per hour. Vertical mounting surface permits +/-180° rotation and +/-30° tilt front-to-back. Wire range for main contacts: solid 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²); stranded 2x (0.75 to 25 mm²); AWG 2x (18 to 2). For type 2 coordination, a gL/gG fuse of 80 A is required.
Panel integration
At 73 mm wide, the S2 frame fits standard DIN-rail enclosures. The +/-30° tilt allowance helps when routing cables to the screw terminals on angled gland plates.
