Description

The ABB UA110-30-00RA AC contactor is engineered for capacitor switching, managing extreme inrush currents by using integrated damping resistors that precharge capacitors and limit peaks at energization. This extends capacitor life and ensures reliable service in power-factor correction systems. For coordinated distribution gear and assemblies, see our panel building solutions in Egypt.

Key Specifications

• Model: ABB UA110-30-00RA 220-230 V 50 Hz

• Application: Capacitor switching

• Peak Current Capability: Up to 100 × nominal RMS

• Control Circuit: AC operated, laminated magnet circuit

• Accessories: Wide range available

• Design: Block type, damping resistors included

Highlights

• Precharging action reduces second inrush peak

• High durability under repetitive switching duty

• Clean wiring with front-mounted resistor block

• Stable performance across voltage variants

Typical Uses

• Power factor correction panels

• Fixed or stepped capacitor banks

• Commercial and industrial PFC systems

Installation & Support

Delivered complete with resistors for direct installation. ARC Technologies supports sizing, wiring, and commissioning of ABB capacitor switching contactors.