Interlocked Receptacle and Disconnect Switch, Type Interlocked, Constructional Feature Corrosion Resistant, Raintight, Watertight, Voltage Rating 600 VAC, Current Rating 30 Ampere, Number of Poles 4, Number of Wires 3, Fuse Provision Fusible, Class R, Hub Type 1 Inch, Grounding Style 2, Shell, Extra Pole, Material Non-Metallic (Receptacle), VALOX Thermoplastic Polyester (Enclosure), Enclosure NEMA 4X/12/IP66, Approval UL 98/1682/1686, CSA C22.2, Application Welder, Generator, Compressor, Infrared Oven, Batch Feeder, Conveyor, Truck Terminal, Marine Dock, Industrial Plant