18 Series Single Pole Cam Type Adapter, 3-Fer, Male-Female-Female-Female, 400 Amp Max, Green Leviton’s Rhino-Hide Single Pole Cam-Type Connectors supply temporary electrical power for both indoor and outdoor applications. These devices are designed for easy assembly and disassembly, without special tools. Single or double set screw termination NEMA 3R rated for outdoor use when mated UL; 1691, 508 – 35k A / 600V Short Circuit Current Rating Color-coding provides fast and easy phase identification Common applications; entertainment, oil and gas, mining operations, power distribution, construction sites, and other temporary power applications.