Surgelogic Type IMA systems are internal surgical protection devices with a focus on service entrance and critical branch panel surge suppresion. With a surge current rating of 240,000 Amps and enhanced EMI/RFI filtering, this unit is retrofitted to be installed in a wide variety QMB Branch units. Being modular in design, this unit is able to achieve superior surge suppression on the load side including at the branch panel. This unit uses the WYE system to allow two different voltages using three phase. This product is UL and CSA certified.