The Victron Energy MPPT WireBox-M is a protective terminal cover designed for compatible SmartSolar and BlueSolar MPPT charge controllers. It fits the 100/30, 100/50, 150/35 and 150/45 models and encloses the DC connection terminals, helping prevent accidental contact with exposed terminal screws.
Designed for installations in general-access areas, the WireBox-M adds a simple physical safety barrier without changing charger operation. Its model-specific fit keeps the installation neat while improving protection around solar charge controller wiring in off-grid, marine, RV and stationary solar systems.