Technical Parameters
Parameter Specification
Product Type AC Contactor
Model / Series UA110-30-11
Control Coil Voltage 220–230 V AC (50 Hz) / 230–240 V AC (60 Hz)
Operating Frequency 50 / 60 Hz
Main Circuit Rated Operational Voltage Up to 1000 V AC
Rated Operational Current (AC-3) Approx. 110 A at 220–240 V AC
Rated Operational Power (AC-6b) Approx. 40–45 kVAr at 230–240 V AC
Rated Insulation Voltage 1000 V AC
Rated Impulse Withstand Voltage 8 kV
Short-time Withstand Current (Icw) Approx. 800 A for 10 s (cold state)
Making Capacity Approx. 10 × Ie (AC-3)
Breaking Capacity Approx. 8 × Ie (AC-3)
Number of Poles 3 (plus auxiliary contacts when fitted)
Terminal Type Screw or cable clamp connections
Mechanical Endurance High cycles (designed for long life)
Ambient Operating Temperature Typically −40 °C to +70 °C
The ABB UA110-30-11 contactor is an industrial AC contactor designed for reliable control and switching of electrical power circuits in three-phase systems. It is suitable for switching motors, capacitive loads, and general AC loads in industrial, commercial, and infrastructure applications.