McPherson Controls MTS Voltage Regulator SS150FW McPherson Controls Full Wave 150 Amp Static Analog Voltage Regulator is capable of working in Parallel. Works with A1 A2 Power Factor Correction. Multiple Sensing Voltages. Built In Flashing Unit. The Regulator is built inside a wall-mount enclosure with Cooling System and separate Power Input Sensing. Works with Electric Motor Division (EMD), large Catepillar’s, and large DELL Generators.