Known for its legendary durability and mechanical grit, MK1 is a field-proven air-break starter engineered to run and protect three-phase motors up to 15 HP (and single-phase installations). Whether you are pushing a deep borewell submersible pump in a farming grid or setting up a small domestic flour mill, the MK1 offers the uncompromising reliability needed to withstand severe voltage unbalance, frequent restarting cycles, and tough environmental conditions.