Green mode
Patent-pending operating mode that bypasses unused electrical components in good power conditions to achieve very high operating efficiency without sacrificing any protection.

Battery failure notification
Provides early-warning fault analysis on batteries enabling timely preventive maintenance

Power-saving outlets
Automatically cuts power to idle equipment to conserve electricity.

Resettable circuit breaker
Easy recovery from overloads; no need to replace a fuse.

Extendable Run Time
Additional batteries can be added to provide power to the load for an extended period of time in the event of utility supply failure.

Battery-protected and surge-only outlets
Reserves power capacity and run time for connected equipment that require battery back-up while providing surge only protection for less critical equipment

Cold-start capable
Provides temporary battery power when the utility power is out.

Serial Connectivity
Use any Home Automation network to monitor and control the S20 through its RS-232 serial port. For information on how to communicate with the S20, see APC's Application Note #102. Crestron and AMX installers should visit their respective websites for information on how to integrate the S20 into those networks.

Hot-swappable batteries
Ensures clean, uninterrupted power to protected equipment while batteries are being replaced

Disconnected battery notification
Warns when a battery is not available to provide backup power.

Dataline Surge Protection
Provides protection of connected equipment from power surges on the data lines.

Automatic self-test
Periodic battery self-test ensures early detection of a battery that needs to be replaced.

Adjustable voltage-transfer points
Maximizes useful battery life by widening the input voltage window or tightening the output voltage regulation.