APC Back-UPS 500VA uninterruptible power supply (UPS) 0.5 kVA 300 W 4 AC outlet(s)

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

Status Indicator LED's
Provides a quick visual indication of your unit's status.

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

Boost Automatic Voltage Regulation (AVR)
Preserves battery life and maximizes runtime by correcting low voltages without discharging the battery.

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

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.

Lightning and Surge Protection
Protection from surges, spikes and even lightning is guaranteed!

Resettable circuit breaker
Instead of a hard to find fuse, there is a push-button circuit breaker for easy recovery from an overload or short circuit.

Audible alarms
Proactively notifies you of changing UPS and utility power conditions.

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

Transformer Block Spacing
Designed to allow the use of up to two transformer block plugs without blocking access to other receptacles.