S811+V42V3S Eaton Soft Starter

The S811+V42V3S is an Eaton soft starter intended for controlled starting and stopping of three-phase motors in pumping systems. Its 420 A rating indicates the operating current for compatible motor-starting loads, while the 690 V voltage rating defines the electrical operating voltage for installation matching. Rated pump control provides gradual acceleration and deceleration, helping limit mechanical shock and water-hammer effects during pump operation. The 290 mm frame size makes the unit suitable for retrofit and new industrial installations. As a member of the S811+ intelligent soft starter family, the S811+V42V3S combines controlled starting performance with motor protection for demanding industrial motor-control applications.