The Siemens SIRIUS 3RT2015-2AP01-1AA0 is a size S00 power contactor with a 24 VDC coil, designed for switching motor loads in control panels up to around 3 kW at 400 V. It uses spring-type terminals for wiring and mounts on a 35 mm DIN rail per DIN EN 60715, fitting into compact panel layouts where the 45 mm width and 73 mm depth matter for rail spacing.
The 24 VDC coil draws 10 A at rated value, which is the pick-up current; the holding current is lower, but the 10 A figure governs the DC supply sizing and the free-wheel diode selection across the coil. At 400 V the contactor is rated 3 A, so it handles small motor loads — think fractional-horsepower pumps or small conveyors — not a 10 kW drive feed. The size S00 frame keeps the panel footprint tight, and the spring-type terminals accept 0.5 to 4 mm² solid or stranded wire, which covers standard control wiring without needing ferrules for stranded conductors. Operating temperature spans -25 to +60 °C, so it works in an unventilated enclosure near hot rolls or a furnace line, but the storage range of -55 to +80 °C is wider — that limit governs handling during shutdown, not running.
The mounting position is standing on a horizontal surface. Clearance: 10 mm upwards and forwards, 6 mm at the side, 10 mm downwards — these matter for heat dissipation and arc-chamber clearance when the contactor is packed next to other devices in a row.