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1SBL411001R8411

The ABB 1SBL411001R8411 is a 3‑pole AC contactor from the A75 series, designed for industrial power control applications. It is suitable for controlling three-phase motors, lighting circuits, heaters, and capacitor banks. The contactor operates with an electromagnetic coil and features screw-type terminals for reliable connections. It can switch currents up to 75 A at 400 V AC in AC‑3 duty.

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Parameter Value Rated Operational Voltage (Ue) 400 V AC (AC‑3 duty) Rated Operational Current (Ie) AC‑3 75 A at 400 V Rated Operational Current (Ie) AC‑1 125 A at 400 V Rated Control Supply Voltage (Uc) 110 V AC, 50 Hz / 110–120 V AC, 60 Hz Number of Main Poles 3 (NO) Auxiliary Contacts 1 NO + 1 NC Rated Insulation Voltage (Ui) 690 V AC Rated Impulse Withstand Voltage (Uimp) 6 kV Short-Circuit Making Capacity 6 kA (depends on fuse protection) Coil Type AC only, electromagnetic Terminal Type Screw terminals for main and auxiliary circuits Mechanical & Environmental: Parameter Value Mechanical Durability ~1,000,000 operations (typical for A75 series) Mounting Type DIN rail or screw mounting (block type) Ambient Operating Temperature −25 °C to +55 °C Storage Temperature −60 °C to +80 °C Protection Class IP20 (terminals), IP00 (main contacts) Connection Capacity Cu/Al wires as per terminal ratings Weight ~1.2 kg Applications: Control of three-phase motors (star/delta, direct-on-line) General AC power switching Lighting, heating, and capacitor bank control Suitable for AC‑3 duty, frequent switching operations