The Siemens 3RT2025-1AK64 is a SIRIUS power contactor in size S0, built for switching motor loads in control panels. It carries a 24 VDC coil with screw-type terminals and mounts via screw or snap-on onto 35 mm standard mounting rail per DIN EN 60715.
Mounting and integration
Snaps onto 35 mm DIN rail (DIN EN 60715) or can be screw-mounted. The mounting position is flexible — ±180° rotation on a vertical surface, and can be tilted forward/backward ±22.5° on a vertical surface. That means it fits into tight panel layouts without worrying about orientation. Dimensions: 85 mm high, 45 mm wide, 141 mm deep. The 45 mm width is a standard 2.5 module width on a DIN rail — leaves room for adjacent devices. Clearance requirements: 10 mm upwards, 10 mm forwards, 10 mm downwards, and 6 mm at the side. Keep those gaps for heat dissipation and arc flash clearance.
Operating conditions
Rated for operation from -25 °C to +60 °C, storage from -55 °C to +80 °C. That covers most indoor panel environments and cold storage handling.