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A110-30-11

The A110‑30‑11 is a 3‑pole AC contactor from ABB’s A‑series, designed for general industrial power switching and motor control applications.It features 3 main contacts (normally open) for the main circuit and includes auxiliary contacts (1 NO + 1 NC) for control or signaling circuits. The contactor is suitable for use with three‑phase loads, motor starters, and can handle up to specified voltage/current ratings per its frame size.The design supports screw/cable‑clamp terminations, making it compatible with standard wiring practices in control panels and switchgear assemblies.

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Technical Specifications Parameter Value Model / Series A110‑30‑11 (Frame: A110) Poles (Main Contacts) 3 poles, 3 NO (Normally Open) Auxiliary Contacts 1 NO + 1 NC Coil (Control) Voltage (typical) 110–120 V AC (there are also variants with different coil voltages) Rated Operational Voltage (Main Circuit) Up to 1000 V (depending on variant) Conventional Free‑air Thermal Current (Ith) 160 A @ 40 °C Rated Operational Current AC‑1 (Ie) 160 A @ 690 V (at 40 °C) 145 A @ 690 V (at 55 °C) 130 A @ 690 V (at 70 °C) Rated Operational Current AC‑3 (Ie) ~110 A @ 380–415 V ~100 A @ 440–500 V ~82 A @ 690 V Rated Operational Power AC‑3 (Pe) 55 kW @ 380–400 V 59 kW @ 415–440/500 V 75 kW @ 690 V Insulation / Voltage Rating (Ui) Up to 1000 V (IEC standard) / 600 V (UL/CSA) UL/CSA General‑Use Rating 140 A @ 600 V AC Auxiliary Contact Terminals & Main Circuit Terminals Screw / Cable‑clamp type Ambient Temperature (Operating) With thermal overload relay: –25 °C … +50 °C (or –25 °C … +55 °C depending coil) Without overload relay: –40 °C … +70 °C Typical Dimensions Approx. 148 mm (H) × 102 mm (W) × 123.5 mm (D) Typical Max Motor Load Capacities (UL/CSA) 3‑phase motor up to 75 hp @ 480 V, 100 hp @ 600 V (depending wiring/conditions)