External manual bypass rated 100 A, 2-pole configuration, for isolating the UPS during maintenance while keeping the load powered from the mains. It supports safe service procedures and includes an auxiliary contact logic for communicating bypass status to the connected system. Riello compatibility: Manual Transfer MBB/BBX.

External manual bypass rated 125 A, 4-pole configuration, for isolating the UPS during maintenance while keeping the load powered from the mains. It supports safe service procedures and includes an auxiliary contact logic for communicating bypass status to the connected system. Riello compatibility: Manual Transfer MBB/BBX.