The Siemens SIRIUS 3RT2015-1BA41 is a size S00 power contactor with a 24 VDC coil and screw-type terminals, designed for screw and snap-on mounting onto 35 mm DIN rail per DIN EN 60715. The mounting position allows +/-180° rotation on a vertical surface and +/-22.5° tilt forward/backward, giving panel builders flexibility in tight enclosures.
Switching frequency and duty ratings
Rated switching frequency varies by duty: AC-1 (resistive) at 1,000 ops/h, AC-2 and AC-3 (motor start/run) at 750 ops/h, AC-3e at 750 ops/h, and AC-4 (plugging/inching) at 250 ops/h. The arcing time spans 10–15 ms, and the DC switching time is 7–13 ms. This means the contactor is rated for moderate-speed motor switching but not high-cycle inching applications.
Auxiliary contact ratings
The built-in auxiliary switch is rated for DC loads: 10 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 3 A at 400 V. For AC motor loads, the contactor is rated 0.75 hp at 230 V. These ratings define the control-circuit capacity for interlocking or status feedback.
Environmental and mechanical specs
Operating temperature range is -25 to +60 °C; storage range is -55 to +80 °C. The contactor occupies a compact footprint of 45 mm width, 58 mm height, and 73 mm depth. Clearances: 10 mm upward, 10 mm forward, 10 mm downward, and 6 mm at the sides. Wire capacity accepts solid or stranded conductors: 0.5–4 mm² single, or 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), and 2x 4 mm². Typical mechanical life is 30 million operations.