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A185-30-11

The ABB A185‑30‑11 is a 3‑phase, 3‑pole AC contactor from ABB’s “A‑series.” It is designed for motor control and general power‑circuit switching, offering reliable switching for three‑phase motors, industrial loads, or distribution circuits. The contactor is non‑reversing and includes auxiliary contacts for control or signalling (1 NO + 1 NC), making it suitable for start/stop circuits, load switching, bypass/isolation, and general industrial automation tasks. It supports a wide range of supply voltages and is built for heavy‑duty use.

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Technical Parameters Parameter / Feature Specification / Detail Model / Type A185‑30‑11 3‑Pole AC Contactor Poles / Main Contacts 3 × Normally‑Open (NO) — three‑phase main circuit Auxiliary Contacts 1 × NO + 1 × NC (for control/signalling) Rated Main‑Circuit Voltage (Ue) Up to 690 V AC (IEC‑rated) Conventional Free‑air Thermal Current (I_th) 275 A at 40 °C (free‑air) Rated Operational Current (AC‑1, Ie) 275 A @ 690 V (40 °C); derated to 250 A @ 55 °C; 180 A @ 70 °C Rated Motor‑Switching Current (AC‑3, Ie) 185 A @ 400–415 V AC; 170 A @ 500–690 V AC (typical) Rated Motor / Load Power (AC‑3) Up to ~ 90 kW at 400 V; ~ 132 kW at 690 V (depending on load & supply) Coil / Control Supply Voltage Versions available (e.g. 110–120 V AC coil; other coil‑voltages depending on variant) Rated Insulation Voltage (Ui) 1000 V (IEC standard insulation rating) Impulse Withstand Voltage (Uimp) 8 kV (main contacts) Mechanical Endurance ~ 5 million switching operations Connection / Terminals Screw‑type terminals; main contacts via heavy‑duty bars/busbars Protection / Enclosure Rating (terminals) Coil terminals: IP20; main terminals: IP00 (open bar type) Typical Use Cases 3‑phase motor start/stop; industrial load switching; motor control panels; power distribution; contactor‑based machine control