QB-5 series LV soft starter

The QB-5 series AC motor soft starter is adopted with the advanced computer-based control technology and power electronics technology. The stable voltage fluctuation and ess connection / disconnection of the motor is controlled through the change of the conduction angle of the thyristor which is used as the main circuit switch ensure stable motor startup and shutdown. The impact on the power grid is effectively reduced, and the vibration, noise and mechanical startup stress of the equipment are decreased, which prolongs the service life of the motor and relevant equipment. The QB-5 series AC motor soft starter features advanced technology, stable and reliable operation and complete protection function, thus its performance has reached the advanced level of similar international products.