The Siemens 3RT6015-1BF42 is a SIRIUS power contactor in size S00, rated for AC-3 switching up to 690 V. The 45 mm wide body snaps onto a 35 mm DIN rail per DIN EN 50022, with side-by-side mounting permitted for dense panel layouts.
The AC-3 motor-switching ratings at 60 °C tell you the real-world load capacity: 6 kW at 230 V, 10.5 kW at 400 V, and 18 kW at 690 V. These are the numbers that govern whether this contactor handles your motor without derating. The 110 V coil holds at nominal and drops out reliably below the pick-up threshold — standard for PLC-driven panels where the control voltage is 110 VAC. Operating temperature spans -25 to +60 °C, so it lives in a warm cabinet without issue; storage range of -55 to +80 °C covers transport and warehouse extremes.
The mounting position allows +/-180° rotation on a vertical surface and can be tilted forward or backward by +/-22.5° — useful when the panel layout forces an unconventional orientation. The S00 frame keeps the footprint compact at 45 x 57.5 x 73 mm (W x H x D).