High Voltage All Electric Van Refrigeration Units – K-300E. Model: K-300E/K-300ER. Driven Type: Full electric driven unit. High Voltage: DC320V,DC540V. Compressor: GEV38 compressor. Application: 12-16m³box of van and truck. Refrigerant: R404a. View More. High Voltage All Electric Van Refrigeration Units–K-200E/K-200ER.