U.S. Wire & Cable's Temporary Power Box is designed to offer power to virtually any large-scale outdoor event, such as: construction sites, carnivals and fairs, convention centers...etc. The 50 Amp inlets and outlets (one of each) are recessed for additional safety. They also feature weatherproof covers. All outlets are protected with weatherproof covers and are circuit breaker protected against overloads. The 20 Amp outlets have additional GFCI protection for added safety.