The HUBBELL HLDMP is a keyed lockout device designed to provide a secure method for complying with OSHA Lockout/Tagout regulation 29CFR 1910.147. This small, yellow device is specifically designed for 15 and 20A molded on plugs, offering a reliable solution for electrical safety in industrial settings. It helps prevent accidental startup of equipment during maintenance or repair, minimizing the risk of injury and equipment damage.