Description

The ABB UA30-30-10RA AC contactor is purpose-built for capacitor switching where inrush currents can exceed 100 times nominal RMS. Its resistor block precharges capacitors and suppresses peak currents at energization, safeguarding both capacitors and upstream gear. For engineered PFC solutions and turnkey panels, explore our complete range of industrial and power distribution solutions.

Key Specifications

• Model: ABB UA30-30-10RA 220-230 V 50 Hz / 230-240 V 60 Hz

• Configuration: 3 main poles, 1 auxiliary contact

• Endurance: 250k ops for Ue < 500 V, 100k ops for 500–690 V

• Control: AC, laminated magnet circuit

• Supplied: With damping resistors, block-type design

Highlights

• Limits first and second inrush peaks via resistor insertion

• High durability for frequent PFC switching

• Compact footprint simplifies panel layout

• Accessory range for interlocks and auxiliaries

Typical Uses

• Centralized and distributed PFC banks

• Industrial compensation cabinets

• Utility and large commercial PFC systems

Installation & Support

Delivered complete for direct installation. ARC Technologies provides ABB application sizing, commissioning, and ongoing service agreements.