Appleton™ U-Line™ Interchanger 15 and 20 Amp Plugs are used with stationary or portable electrically operated devices in hazardous locations. The ECP plug is suitable for use in such areas as refineries, petrochemical plants, and other areas subject to where ignitable gases are present. The NCP plug is ideal where moisture or corrosion is a constant problem, such as production facilities on marine platforms, and pipeline transportation facilities

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