Siemens 3RT7026-1AN25 — Size S0 Contactor, 3-Pole, 690 V AC-3 Duty
The Siemens 3RT7026-1AN25 is a current-production SIRIUS Size S0 contactor with three main NO poles, screw-type terminals on both main and auxiliary/control circuits, and a rated insulation voltage of 690 V. It is rated for AC-3 switching duty up to 690 V maximum — meaning it handles the inrush and breaking of squirrel-cage motor loads within that voltage class. The frame is pollution degree 3 rated, suitable for industrial control panels where conductive dust or humidity is present. Mounting is via screw or snap-on onto a 35 mm DIN rail per EN 50022, and side-by-side mounting is allowed without derating in free-air conditions. Coil power draw is low — 0.72 W closing, 0.24 W holding at DC — which keeps the control transformer budget small in multi-contactor panels. The contactor occupies 55 mm width on the DIN rail, with a depth of 91 mm and height of 85.5 mm, fitting standard S0 panel layouts. Ambient operating range is -10 to +55 °C; storage range -25 to +70 °C. The IP20 finger-safe rating on both front and terminals means no additional finger-duct shielding is required inside a locked enclosure.
Panel Integration — DIN Rail, Screw Terminals, Coordination Data
Snap-on mounting onto a 35 mm standard mounting rail per DIN EN 50022. The mounting position allows +/-180° rotation on a vertical surface and can be tilted forward/backward by +/-22.5° on a vertical surface.