Trim solid or stranded wire to length and insert into clamp-style terminals. Turn on the power and check your work. more Connecting wires of different thicknesses (gauges) can be. This guide provides step-by-step instructions for connecting a distribution box and highlights key factors to consider during installation. This connection method has a proprietary name in the distribution box-jumper. Proper assembly inside this box is paramount because a poorly made splice can generate excessive heat due to high resistance, creating. Below, I'll walk you through multiple ways to make basic wire connections in your home. It is usually equipped with circuit breakers, fuses, terminal connectors, and other components.