What the ratings mean for fit
The 3RT1035-1BG44: AC-3 at 500 V delivers 22 kW — that's the motor-switching rating for a standard squirrel-cage induction motor. AC-4 at 400 V gives 35 A, which is the rating you size for plugging or jogging duty where the contactor makes and breaks stalled-rotor current. The mechanical life of 10 million operations means this contactor is built for high-cycle applications like conveyor lines or packaging machines. The operating temperature range of -25 to +60 °C covers most indoor panel environments, and pollution degree 3 means it's rated for industrial atmospheres with conductive dust or moisture — no derating required for typical factory-floor conditions.
Mounting and wiring
Mounts via screw and snap-on onto 35 mm DIN rail per EN 50022. The 55 mm width and 112 mm height fit a standard panel layout; side-by-side mounting is permitted with no derating gap. Main circuit terminals are screw-type, accepting stranded up to 25 mm² or solid up to 4 mm² (max 2x). The front face carries an IP20 rating — safe for finger-probe access inside an enclosure — while the terminal area is IP00, so the contactor must be installed within a panel that provides the final enclosure protection.