Temporary power distribution boxes and carts serve as hubs to connect electrical loads and have multiple outlets to distribute power. Check out our Two & Four Wheeled Carts now. The 75 kVA Juice Box is our response to this problem in the most compact, maneuverable, and ruggedly durable frame we could imagine. Common applications include construction, outdoor. Facilitate portable power distribution in various environments with our 2 Wheel Transformer Power Center. The secondary voltage is connected to a 200amp-120/240v 1ph, 3p/4w, Grounded Neutral load center with main breaker and. Larson Electronics LLC manufactures a wide variety of products, including custom built to spec designs.