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AF185-30-11

The ABB AF185‑30‑11 is a three‑pole industrial AC contactor designed to switch and control three‑phase power circuits in industrial and commercial electrical systems. It is suitable for motor starting, isolation, bypass circuits, and distribution switching of heavy loads. This contactor features a wide control (coil) voltage range that supports both AC and DC supply, making it flexible for use in varied control systems. It includes three normally open (NO) main contacts and built‑in auxiliary contacts for control and feedback functions. The rugged, block‑type design ensures reliable performance in demanding environments.

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Key Technical Parameters General & Electrical Ratings Product / Model: ABB AF185‑30‑11 Device Type: 3‑pole AC Contactor Main Contacts: 3 normally open (NO) Auxiliary Contacts: 1 NO + 1 NC Control (Coil) Voltage Range: 100–250 V AC/DC Rated Insulation Voltage: Up to 690 V AC Rated Frequency: 50 Hz / 60 Hz Current & Power Ratings Conventional Free‑Air Thermal Current (Ith): ~275 A at 40 °C Rated Operational Current AC‑1 (Ie): ~275 A at 690 V AC (40 °C) ~250 A at 690 V AC (55 °C) ~180 A at 690 V AC (70 °C) Rated Operational Current AC‑3 (Ie): ~185 A at ~415–440 V AC (55 °C) ~170 A at ~500–690 V AC (55 °C) Rated Operational Power AC‑3 (Pe): ~55 kW at 220–240 V AC ~90 kW at 380–400 V AC ~110 kW at ~500 V AC ~132 kW at ~690 V AC Switching & Protection Rated Breaking Capacity (AC‑3): ~8 × Ie Rated Making Capacity (AC‑3): ~10 × Ie Rated Impulse Withstand Voltage: ~8 kV Short‑Circuit Protective Devices: gG type fuses (e.g., 355 A) Mechanical Durability: ~5 million operations Electrical Switching Frequency: ~300–1200 cycles/hour depending on duty Mechanical & Physical Mounting Type: Panel or DIN rail adapter Terminal Type: Screw terminals Degree of Protection: IP20 at coil terminals, IP00 at main terminals Operating Ambient Temperature: ~–40 °C to +70 °C (highest range when no auxiliary devices fitted) Connecting Capacity: Suitable for bar and cable connections (varied conductor sizes) Typical Applications Starting and stopping three‑phase motors Switching heavy industrial loads Control panels and motor starter assemblies Distribution and bypass circuits