LEGRAND NUMERIC HP i 33 40 kVA Series User Manual page 11

Energy conservation and high efficiency
Adopts advanced PFC control technology. The input power factor is greater than 0.99, which greatly
improves the use ratio of electric energy and reduces the load of power grid, thus saving the cost of
power distribution. The size of the UPS is small, and the weight is light, calorific value is small, which
enhances the use ratio of environment and decreases the investment cost.
Smart fan speed control
The fan speed is adjusted automatically in accordance with the load status, which prolongs the life of the
fan and reduces the noise.
ECO energy conservation mode design
The UPS is designed with ECO energy conservation mode. When the UPS is operating in ECO mode and
the user power grid is good, the bypass prior to output and efficiency can be at 99%. When the bypass
voltage or frequency is out of normal range and cannot satisfy the user's power supply requirement, it
will switch to inverter output which guarantees the reliability of power supply and also saves energy.
Manual maintenance bypass design
The manual maintenance bypass channel ensures that UPS supply power to load during maintenance which
greatly improves the system operation reliability of power supply and also saves energy.
Reliable EMC performance
It has passed the professional test on EMC by the authority institution, including conducting disturbance,
radioactive disturbance, conducting anti-disturbance, radioactive anti-disturbance, power falling, mass
impulse, static discharging, surge, etc. The excellent EMC characteristics can completely filter each power
grid interference and also, decrease and eliminate the interference of UPS itself effectively.
Touch screen display
Touch screen display makes operating simple and convenient, to manage and maintain the UPS on
everyday basis. It displays the running parameters, running status of the UPS, each power unit, record
history and give alarm information. It can store a maximum of 9000 pieces of information.
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