Outward / Inward rotation allows for easier installation and storage. Surrounds the electrical plug; protects against accidental reconnection. Unique outward rotation allows for easier installation in confined space applications. Each size rotates into itself to fit effectively into safety tool boxes. The Model 487 nests within the Model 488 to save space in storage. Red lockout color identifies the safety lockout application. Complete with high-visibility permanent safety labels (Eng., Fr. & Sp.) that can be written on Model 488 to identify the responsible person, then erased for the next job. Tough, lightweight, dielectric Xenoy® thermoplastic bodies withstand chemicals; perform effectively in extreme conditions (temperature range -50°F to +350°F).