Rated 37 kW at 500 V in AC-3 duty (motor switching), it handles the typical pump, fan, or compressor load up to that power. The main circuit uses screw-type terminals, accepting solid conductors up to 2x (0.5...1.5 mm²) or 2x (0.75...2.5 mm²) and stranded up to 2x (10...50 mm²). That covers most panel wiring from control to power feeds.
AC-3 at 1000 operations per hour is the mechanical switching rate for motor starting — the contactor can cycle a motor on and off every 3.6 seconds without overheating the coil or arc chamber. AC-4 (inching/plugging) is limited to 300 ops/h because the make-and-break under stalled-rotor current stresses the contacts harder. The coil hold range at 50 Hz is 0.8...1.1 x rated voltage, at 60 Hz 0.85...1.1 x rated voltage. That means a 24 V coil stays pulled in down to about 19.2 V at 50 Hz, which matters when the control transformer sags under load.
No special tooling or firmware versioning to track.
Dimensions: 146 mm high, 70 mm wide, 139 mm deep. IP20 on the front with cover or box terminal; the terminal body itself is IP00. In a panel with a closed door, the front IP20 is fine. For open-panel maintenance, keep hands clear of the live terminals. No additional conformal coating required for normal factory-floor environments.