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
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.