The 110 V DC coil with integrated varistor handles the suppression internally, so you don't need to add a separate RC snubber across the coil terminals.
For motor starting duty (AC-2 at 400 V), this contactor is rated at 11 kW — that covers a standard 15 hp induction motor on a 400 V three-phase line. For reversing or plugging duty (AC-4 at 400 V), the rating drops to 15.5 A, reflecting the higher electrical wear from breaking locked-rotor currents. The mechanical endurance is typical 10 million cycles, so it's built for high-throughput conveyor or pump cycling applications. The contactor carries pollution degree 3, meaning it's rated for the conductive dust and humidity found in most industrial environments without conformal coating. Operating temperature range spans -40 to +70 °C, so it's suitable for unheated plant floors or outdoor cabinet installations as long as the enclosure keeps condensation off the terminals.
Short-circuit coordination and wiring
The main terminals are screw-type, accepting 2x (1 to 2.5 mm²) or 2x (2.5 to 6 mm²) or up to 2x 10 mm² stranded copper.
The S0 frame occupies 70 mm width, 88 mm height, and 153 mm depth — check your DIN rail clearance, especially if the contactor is mounted near the gland plate. Side-by-side mounting is allowed (zero spacing), so you can pack multiple units on the same rail without derating. The auxiliary contact block (2 instantaneous contacts) is built in; no separate add-on needed for basic signaling.