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.

Prostar UPS Uninterruptible Power Supply

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Three Phase Online UPS

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

3 Phase High Frequency Online UPS (Transformerless)

Modular UPS System

Single Phase Online UPS

Single Phase Transformer Based Low Frequency Online UPS

Single Phase High Frequency Online UPS (Transformerless)

Rackmount Online UPS

Transformer Based Line Interactive UPS

Standby UPS

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