What This Contactor Is and Where It Fits
The 3RT1034-1KJ84-0LA0: Mounts on a 35 mm DIN rail per DIN EN 50022, using either the screw clamp or the snap-on foot. At 80 mm wide, it takes up one standard modular slot. The screw-type main circuit terminals accept stranded wire up to 2x 25 mm², which covers the feed for a 15–18 kW motor circuit without needing a separate terminal block.
Terminal Details and Environmental Limits
The contactor is rated for pollution degree 3, which means it's suited for industrial environments with conductive dust or occasional condensation — no need for a sealed enclosure in a typical panel. Operating temperature range is -40 to +70 °C, storage from -55 to +80 °C. The front and terminal areas are IP00, so it's intended for installation inside a cabinet, not exposed to washdown or weather. Solid wire connections accept 2x (0.5 to 1.5 mm²) and 2x (0.75 to 2.5 mm²), with a maximum of 2x (0.75 to 4 mm²). This covers control wiring for the coil and auxiliary contacts. The RoHS compliance date is May 1, 2012, so it meets the EU directive for new installations.