Hubbell Wiring Device-Kellems plug lockouts are used for keeping workers safe by preventing electric shocks. These plug lockouts feature a one-piece design to accept lock shackles & multiple padlocks of diameters up to 3/8 inches. They have polypropylene construction for low friction and UV stabilisation. With a maximum operating temperature of 60 degrees C, these portable lockout devices are available in lengths of 4.22, 7.27 and 12.5 inches. Raptor Supplies also offers lockout devices having thermoplastic construction for high-impact resistance.