What it is and what it does
The 3RT1034-1AP04-ZX95: The contactor mounts via screw or snap-on to a 35 mm DIN rail per EN 50022, and side-by-side mounting is permitted for dense panel layouts. The 55 mm width and 112 mm height fit a standard footprint for this frame class. Main circuit connections use screw-type terminals, accepting solid conductors up to 2x 4 mm² and stranded up to 2x 25 mm². The front face carries an IP20 rating; the terminal area is IP00, so the panel enclosure provides the environmental seal.
Motor switching capacity — the ratings that matter
For AC-3 duty (standard squirrel-cage motor starting), this contactor is rated to switch motors up to 15 kW at 400 V. That is the figure to match against your motor nameplate for general-purpose starting and stopping. For AC-4 duty (plugging, inching, or reversing under load), the continuous current rating is 29 A at 400 V. AC-4 is harder on contacts than AC-3, so if your application involves frequent reversals or jogging, this is the rating to check. At higher voltages, the motor power capability is 18.5 kW at 500 V and 10 kW at 690 V. These cover common 500 V and 690 V industrial supplies, though the 690 V figure is derated from the 500 V peak. Switching frequency limits vary by duty: 1200 cycles/hour for AC-1 resistive loads, 1000 for AC-3, 750 for AC-2, and 250 for AC-4. The AC-4 limit is the binding one for high-cycle reversing applications.
Auxiliary contact ratings and environmental limits
The built-in auxiliary contacts are rated for switching: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V. These cover typical PLC-level and relay interface loads. Operating temperature range is -25 to +60 °C, with storage from -55 to +80 °C. Pollution degree 3 means it tolerates conductive pollution in industrial atmospheres, provided the panel maintains basic environmental control.
Sourcing and lifecycle
RoHS compliance is confirmed with a substance prohibition date of May 1, 2012, covering the EU directive. No UL or CSA listing is explicitly stated in the available data, so verify jurisdictional acceptance if your site requires those marks.