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.

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.

Adjustable voltage sensitivity - Provides the ability to adapt the UPS for optimal performance in specific power environments or generator applications.

Audible alarms - Provides notification of changing utility power and UPS conditions.

User-replaceable batteries - Increases availability by allowing a trained user to perform upgrades and replacements of the batteries reducing Mean Time to Repair (MTTR)

USB connectivity - Provides management of the UPS via a USB port (not available on all models).

Serial Connectivity - Provides management of the UPS via a serial port.

Transformer-block spaced outlets - Protect equipment with input transformer blocks without blocking access to other receptacles.

Boost and Trim Automatic Voltage Regulation (AVR) - Gives higher application availability by correcting low and high voltage conditions without using the battery.

Intelligent battery management - Maximizes battery performance, life, and reliability through intelligent, precision charging.

Safety-agency approved - Ensures the product has been tested and approved to work safely with the connected service provider equipment and within the specified environment.

Building Wiring Fault Indicator - This LED informs users of potentially dangerous wiring problems in the wall circuit.

Adjustable voltage sensitivity - Provides the ability to adapt the Power Conditioner for optimal performance in specific power environments or generator applications.

Battery replacement without tools - Allows quick, easy battery replacement.

LCD graphics display - Text and mimic diagrams that display modes of operation, system parameters and alarms.

Protection

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

Safety-agency approved - Ensures the product has been tested and approved to work safely with the connected service provider equipment and within the specified environment.

Power conditioning - Protects connected loads from surges, spikes, lightning, and other power disturbances.

Convenience

Audible alarms - Provides notification of changing utility power and UPS conditions.

Automatic restart of loads after UPS shutdown - Automatically starts up the connected equipment upon the return of utility power.

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

Battery replacement without tools - Allows quick, easy battery replacement.

LED status indicators - Quickly understand unit and power status with visual indicators.

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

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

Resettable circuit breakers - Enables a quick recovery from overload events.

Transformer-block spaced outlets - Protect equipment with input transformer blocks without blocking access to other receptacles.

User-replaceable batteries - Increases availability by allowing a trained user to perform upgrades and replacements of the batteries reducing Mean Time to Repair (MTTR)

Manageability

Adjustable voltage sensitivity - Provides the ability to adapt the UPS for optimal performance in specific power environments or generator applications.

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

Intelligent battery management - Micro-processor controlled battery charging and diagnostic testing ensures maximum battery life.