Single Phase Preventor TE 400 is used for protection and burnouts of pumps and motors against phase unbalance, missing and negative phase sequence. We are considered a well established manufacturer of the same in the market. All the phases are continuously checked. A fault trip condition trips the relay - changeover contacts are enrgized. The relay resets automatically and remains off when voltage is low, zero, unbalanced or negative phase sequence. Manual reset can be provided with our Single Phase Preventor TE 400.