The Siemens SIRIUS 3RT1034-1EL26 is a size S2 power contactor rated for motor switching at 18.5 kW at 500 V AC-3 and 10 kW at 690 V AC-3. The 24 V DC coil draws 10 A at rated voltage. It mounts on a 35 mm DIN rail per EN 50022 with screw and snap-on fastening, and uses screw-type terminals for the main current circuit.
Mounting and integration
The contactor measures 129 mm high, 75 mm wide, and 115 mm deep — a standard S2 footprint that fits alongside other SIRIUS components on the same DIN rail. Side-by-side mounting is allowed, so you can pack multiple contactors without extra spacing. Screw terminals accept solid conductors up to 2x (0.5–1.5 mm²) and stranded up to 2x (0.75–25 mm²). The front face is IP20; the terminal area is IP00, so the panel enclosure provides the final ingress protection.