PSD AC Variable Speed Drive

PSD controls the speed of refrigeration compressors and condensing fans, to match the system capacity to the cooling demand. PSD is designed to work as a slave to an external controller, or with Parker Sporlan Rack Controller, type PSR.PSD AC Variable Speed Drive for Refrigeration Compressors & Condensing Fans.Power Range0.75 kW to 110 kW Compressor currents 2.5 to 205 A, Power supply 230 & 460 VAC three phase.