BSS

BSS – Battery Safety Switch for System Protection

BSS (Battery Safety Switch) systems provide critical disconnect and protection capabilities for battery banks in solar and energy storage installations. These safety devices enable manual or remote disconnection of battery systems for maintenance, emergencies, or system shutdown while protecting against overcurrent conditions. Quality BSS units feature high current ratings, reliable switching mechanisms, and integration capabilities with BMS (Battery Management System) technology for automated protection.

The BSS product selection includes manual disconnect switches, contactor-based remote switches, and integrated safety systems with monitoring capabilities. Current ratings range from residential applications to commercial installations requiring 500A or greater capacity. BSS devices install between battery banks and inverters, providing a clear disconnection point that meets NEC (National Electric Code) requirements for accessible disconnects.

Key features include high voltage isolation ratings, minimal contact resistance for efficient operation, and mechanical or solid-state switching appropriate for application requirements. Advanced BSS systems communicate with battery management systems to automatically disconnect during fault conditions, over-temperature events, or other protective scenarios. Proper BSS selection considers maximum system current, voltage ratings, switching frequency, and integration requirements.

BSS installations improve system safety by providing emergency disconnect capabilities and protecting equipment from battery-related faults.

Browse the BSS selection below to find battery safety switches for secure energy storage system protection.