It is a direct starter — meaning it connects the motor directly to the supply for full-voltage starting, without a soft-start or VFD ramp. The 1.6 A rating at AC-3 400 V tells you the motor load it can switch under typical induction-motor starting conditions; AC-3 covers starting and plugging of squirrel-cage motors, so this rating governs the real-world motor size it can handle, not just the resistive load.
Rated 1.6 A at AC-3 400 V — this is the motor-switching current under starting duty. For a 400 V three-phase induction motor, that roughly corresponds to a 0.75 kW output, though verify against your motor's full-load amps. Operating voltage range is 340...440 V, covering standard 400 V line supplies with tolerance for brownout conditions. Control supply is 20.4...26.4 V DC. The AS-Interface protocol is supported natively. Two digital inputs are onboard. The unit includes a motor brake output. IP54 protection means the enclosure is dust-protected and splash-proof — suitable for panel mounting in industrial environments where occasional water spray or dust ingress is possible, but not for direct washdown zones.
This motor starter sits on the AS-Interface network as a slave device, handling motor start/stop, overload protection, and feedback directly over the two-wire AS-i cable. It is a self-contained unit: the 3-pole main circuit, the bimetal overload relay, and the AS-Interface communication are integrated into one housing. Dimensions are 245 mm wide, 215 mm high, 205 mm deep — sized for a standard industrial enclosure, with enough room for cable glands and AS-i bus wiring. The operating frequency is rated at 80 cycles per hour, so it is suited for applications with moderate switching rates — conveyors, pumps, fans — but not for high-speed indexing or rapid reversing where contactor life would be consumed quickly.