Compensation contactors are electromagnetic switches that close open contacts and open closed contacts when the coil is energized, allowing for remote control. They are specifically engineered to handle the unique demands of switching capacitor banks.

Why Use Capacitor Duty Contactors? At the moment of energization, capacitors cause very short-term high inrush currents between 1 and 15 kHz frequency, reaching up to 150 times the rated current.

• Current Limiting: These contactors feature specialized pre-charge resistors that limit the peak inrush currents during switching.

• Longevity: By preventing contact welding, they significantly extend the service life of both the contactor and the capacitors.

• Reliability: Unlike standard contactors, they are optimized for the high-frequency switching requirements of power factor correction systems.