Leviton Circuit Breakers provide overload and short-circuit protection and feature an all plug-on design. All hot and neutral wires terminate at custom lugs in the panel, not at the circuit breaker, so the entire panel can be wired at rough-in without circuit breakers installed. Branch circuit breakers can be easily plugged-on at final installation. They also feature color indicators in the handle to easily see operational status at-a-glance.