1SFL451022R8411

The ABB UA110-30-11-84 Capacitor Duty Contactor is designed for switching three-phase capacitor banks in industrial power factor correction systems. It operates with a 110V control coil at 50Hz or 110–120V at 60Hz. Confirm the control supply voltage before selecting the contactor for your installation.

The contactor has three main normally open poles for switching the capacitor circuit and 1NO + 1NC auxiliary contacts for control and status signalling. Its AC-6b rating is 75 kVAr at 400/415V and 40°C; the listed rating is 70 kVAr at 55°C and 65 kVAr at 70°C. The conventional free-air thermal current is 160A at 40°C. ABB’s UA110 product data identifies the series for capacitor switching and specifies a permissible peak current up to 30 times the nominal RMS current.

This capacitor duty contactor is suitable for APFC panels, capacitor-bank assemblies and industrial electrical distribution systems. Select the model according to the coil voltage, capacitor-bank rating and operating conditions.