The United Automation PR3-E series three phase Thyristor stack. The PR3 range of Thyristor stacks provides full seamless control of three phase resistive loads, using two thirds control technique. It is suitable for 3-wire, 3-phase floating-star or closed-delta configured resistive loads. This includes the Heating, Ventilating and Air Conditioning (HVAC) market for air curtain applications, but also for furnaces, ovens, dryers and hot plates. Over temperature protection
Temperature sensor loss detection
RoHS Compliant