The Eaton PRL1-DK3400W Panelboard Interior Assembly is a 400 A, 208Y/120 V, 3‑phase interior designed for Eaton PRL1 panelboards and includes a DK3400W main breaker. It provides the mounting space and wiring access needed to install and organize branch breakers for a 400 A service. This interior is part of the PRL1 family, compatible with DK3400W main breaker configurations for 208Y/120 V three‑phase applications.
