E0400-284 is a Posi-Lok E0400 Series single pole female plug designed for high-current industrial power connectivity applications. This red-position female plug features double set screw termination for 3/0-4/0 AWG cable sizes and is rated for 600V AC/DC with up to 400A continuous current capacity. The connector utilizes TPE insulator material and thermoplastic polarizing shell, with an operating ambient temperature range of -40°C to 105°C. It incorporates the proven Cam-Lok double cam principle for vibration-proof connections and is designed to meet NEC Article 520-53 Section K and Article 530-22 Section A standards. Common applications include motors, generators, indoor and outdoor lighting distribution panels, and stand-by power systems.