This listing is for a Powervar UPM UPS Power Supply . The unit is in full working condition and is ready for immediate release. The Powervar UPM UPS is a power conditioned, sine-wave uninterruptible power supply designed to provide clean, conditioned power free from noise, voltage spikes, and common-mode disturbances. Key Features: Power Rating: The Powervar UPM UPS has a power rating of 1440VA/1296 Watts. Inverter Waveform: The UPS produces a low distortion sine wave output. Transfer Time: The transfer time is 4 ms. Frequency: The typical frequency is 60 Hz. Efficiency: The online efficiency (without charger) is 91%. BTU/Hr: The UPS has a BTU/Hr rating of 459. THD: The total harmonic distortion (THD) with 100% resistive load is not specified. Protection Features: Surge Diverter: The UPS is equipped with a surge diverter to protect against high-voltage surges. Noise Filter: The UPS has a built-in noise filter to reduce electromagnetic interference (EMI). Low-Impedance Isolation Transformer: The UPS features a low-impedance isolation transformer to provide fully conditioned isolated power. Ground Guard Technology: The UPS is designed with Ground Guard technology to prevent ground loops and eliminate the need for special dedicated-isolated electrical circuits.