HEAVY MACHINERY SAFETY SWITCH - Ensures that electrical circuit is completely de-energized for service or maintenance. Can be used locally at the motor NON-METALLIC ENCLOSURE - Polycarbonate non-metallic housings are made from nonconductive material for enhanced safety ADVANCED SWITCH TECHNOLOGY – Built with silver contacts which are excellent conductors and promote safe and durable operation. Naturally resistant to corrosion ENVIRONMENTAL RATING – IP65 NEMA 4X enclosure for indoor/outdoor use offering a level of protection from corrosion, windblown dust and rain, splashing water and hose directed water; undamaged by ice formations on the enclosure UL508 LISTED - The product has been tested by UL to nationally recognized safety and sustainability standards for motor disconnect applications up to 600 VAC Walther's Motor Disconnect Switches combine a horsepower rated switch in a tough, impervious NEMA 4X enclosure for safe motor load disconnect. The Walther Electric KEM340UL Y/R Motor Disconnect Switches are UL508 listed and carry an environmental rating of IP65 (Water Resistant) & NEMA 4X (Weather-Tight). The KEM340UL Y/R is a heavy machinery safety switch that can be installed locally at the motor within line-of-sight from the motor controller. Constructed from Polycarbonate plastic offering high impact resistance, long life expectancy, and high UV protection making it ideal for indoor/outdoor applications. Non-Metallic housings are non-conductive and can be connected to metallic conduit without interfering with the ground continuity. High-visibility red handle can be padlocked to meet OSHA lockout/ tagout requirements when maintenance or cleaning is required. For added safety, the enclosure cover cannot be removed from the body until the switch is turned to the "OFF" position. NOTE: NEMA ratings and IP ratings both define degrees of protection against substances such as water and dust, but use different test methods and parameters to define their enclosure types.