SIRIUS 3RT2015-2AP01-ZW97 — what it is and what it does
The Siemens 3RT2015-2AP01-ZW97 is a SIRIUS power contactor in Size S00, designed for switching motor loads and resistive loads in industrial control panels. It mounts via screw or snap-on onto 35 mm standard mounting rail per DIN EN 60715, and the mounting position is flexible: +/-180° rotation on a vertical surface, plus +/-22.5° tilt forward/backward, which simplifies panel layout when space is tight. The coil connection uses spring-type terminals, accepting solid or stranded conductors from 0.5 to 4 mm². The main contact arrangement is 20...12, and an auxiliary switch is included. Rated operational current in AC-3 duty at 400 V is 3 A; maximum switching frequency in AC-3 is 750 operating cycles per hour.
DIN-rail fit and panel integration
At 45 mm wide, 70 mm tall, and 73 mm deep, this contactor occupies one standard 45 mm DIN-rail pitch. Clearance requirements: 10 mm upwards, 10 mm forwards, 10 mm downwards, and 6 mm at the side. Ambient operating temperature range is -25 to +60 °C; storage range is -55 to +80 °C. The spring-type terminals on the coil side eliminate the need for screwdriver torque checks during panel assembly — a time-saver on repetitive builds. Accepts 2x (0.5 to 4 mm²) solid or stranded per clamp.
Switching performance and thermal profile
The contactor's arcing time is 10 to 15 ms, and the AC operating time (pick-up + drop-out) is 7 to 13 ms. Coil holding power at 50 Hz and 60 Hz is 0.25 each. For furnace or process applications where thermal cycling matters, the AC-3 switching rate of 750 cycles/h means it can handle frequent starts without exceeding thermal limits — important for burner blowers or recirculation fan motors that cycle on a temperature profile. AC-4 switching (plugging/reversing) is rated at 250 cycles/h maximum, reflecting the heavier electrical stress during inrush. Mechanical life of the contactor is typically 30 million operations.