The Polaris CP350 Replacement Entry Port plug fits into the entry ports of any Polaris connector sized for 350 MCM wire. Replace missing or damaged plugs to keep debris, moisture, corrosion and other threats from interfering with the connection. Polaris connectors provide the simplest solution for forming a secure connection between multiple conductors in applications including cable trays, panel boards, ducts, raceways or troughs. Each pre-insulated connector comes pre-loaded with an oxide inhibitor and installs faster than traditional uninsulated connector options using just a hex key and torque wrench. Their aluminum alloy bodies are wrapped in high-dielectric strength plastisol insulation, which is ergonomically molded to offer a comfortable grip, in addition to being resistant to abrasion, chemicals and UV rays. The all-in-one design saves time and supplies on each job by eliminating the need for cover and taping; simply brush the conductors clean, strip back their insulation, insert one conductor into each port and secure the covered pressure screws. Polaris pre-insulated connectors are available in a range of port numbers and configurations to fit the needs of any job, including UL-listed parallel configurations. Polaris: the original pre-insulated connector and still the brand most asked for by name.