Moisture, water and dust are common reasons of motor failure in commercial refrigeration applications like supermarket refrigerated display cases, beverage merchandisers and vending machines. Motor manufacturers address these concerns by listing their motors’ IP ratings, but often a more detailed explanation is needed. This white paper discusses the meaning and effectiveness of different motor IP ratings in commercial refrigeration applications, and illustrates in detail the Wellington ECR motors solution to moisture, water and dust protection compared to other common types of refrigeration motors.