The utilisation categories AC-3 (squirrel-cage motor starting/switching), AC-1 (resistive loads), and AC-4 (plugging/inching) are all covered, so this starter handles both motor and resistive loads. The rated insulation voltage (Ui) is 1000 V on the power circuit and 690 V on the signalling circuit — that gives headroom for 690 V line applications. The thermal overload tripping threshold is 1.25 times the full-load current setting per IEC 60947-4-1, meaning it will hold through normal motor inrush but trip on sustained overload. The automatic reset time is adjustable from 1.5 to 4 minutes, which is useful for remote or unattended restart after a thermal trip.
Mounts under a contactor on a plate or on a DIN rail with specific accessories — typical for a motor control center (MCC) or panel. The screw-clamp terminals accept up to 16 mm² on the power circuit and 2.5 mm² on the control circuit, with tightening torques of 3.1 N·m and 0.8 N·m respectively. That's enough for most motor branch circuits up to 6 kW.
Listed to UL 60947-4-1, IEC 60947-4-1, CSA C22.2, and GB 14048.4. Flame retardance is V1 per UL 94, and the glow-wire test passes at 850 °C (IEC 60695-2-1). The dielectric strength is 6 kV at 50 Hz (IEC 60255-5). Surge withstand is 2 kV common mode (IEC 61000-4-5), and it resists electrostatic discharge up to 8 kV (IEC 61000-4-2).