An uninterruptible power supply or uninterruptible power source (UPS) is an electrical apparatus that provides emergency power to a load when the input power source or mains power fails.

A UPS differs from an auxiliary or emergency power system or standby generator in that it will provide near-instantaneous protection from input power interruptions, by supplying energy stored in batteries, supercapacitors, or flywheels. The on-battery run-time of most UPS systems is relatively short (only a few minutes) but sufficient to start a standby power source or properly shut down the protected equipment.

UPS uninterruptible power supply

Three Phase Online UPS

3 Phase Transformer Based Low Frequency Online UPS (Industrial Grade)

3 Phase 208V/220V Low Frequency Online UPS

3 Phase High Frequency Online UPS (Transformerless)

Modular UPS System

Single Phase Online UPS

Single Phase High Frequency Online UPS (Transformerless)

Rackmount Online UPS

Transformer Based Line Interactive UPS

Standby UPS

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