This series of UPSs is the ideal emergency power supply solution for protecting critical equipment from power blackouts, brownouts and surges. A typical application is that during a power outage this UPS enable an elevator system to come to the nearest floor and door to open so that people would not get stuck in an elevator. Features  Wide input voltage range  Selectable LCD display, 3 LED display and 6 LED display  Microprocessor-based digital control  Intelligent battery management  Unattended function available  Support starting and running without battery  Superior protection and automatic system recovery  Wall / vertical mounting

A line-interactive UPS maintains the inverter in line and redirects the battery's DC current path from the normal charging mode to supplying current when power is lost. In this smart design, the battery-to-AC power inverter is always connected to the output of the UPS. When the input AC power is normal, the inverter of the UPS is in reverse operation and provides battery charging. Once the input power fails, the transfer switch will open and the power will flow from the battery to the UPS output. This design offers additional filtering and yields reduced switching transients since the inverter is always on and connected to the output.

EA900RT 1-10KVA

Advanced dual-core DSP control technology and 3-level technology Output power factor 1.0 Active Power Factor Correction Technology, input power factor up to 0.99 System efficiency improved to 94%, energy saving rate is doubled Working efficiency up to 98% in ECO mode Dual input design, supporting independent bypass Advanced digital and parallel technology, providing higher reliability than single system Wide input voltage range, 50 / 60 Hz auto-sensing frequency 50 Hz / 60 Hz frequency conversion mode Compact internal layout, small footprint Fan speed varies intelligently with temperature, reducing noise and extending its service life Features strong fault tolerance, one fan damaged takes 50% of the load, two fans damaged take 30% of the load Conformal coating technology to make UPS operate in harsh environment for a long time Effective hardware and software protection, robust self-diagnosis function, abundant event log for future check Linear downgrading in low voltage input reducing battery discharging times Flexible battery configuration setting, selectable battery numbers: 16 ~ 24 pcs Digitally controlled charger (Max. 48 A ) Ability to switch on the UPS by battery in the absence of mains power (Cold start) Zero switching time for UPS power supply mode when the mains power is unstable, ensuring the output is uninterrupted Settable delayed start time when mains power is restored 5 inches LCD colorful touch screen, friendly human & machine interface Powerful background software for parameters configuration and online upgrade Advanced multi-platform communication for UPS monitoring: RS232, USB, RS485, RJ45, dry contacts, SNMP card, Wi-Fi card and GPRS card Intelligent battery management, automatic equalized and float charging control, charger dormancy control, improving the reliability of charger and extending the battery life Options and accessories: RS232, USB, RS485, RJ45, parallel, dry contacts, EPO and battery temperature compensation interfaces supplied; optional SNMP card, Wi-Fi card, GPRS card, battery temperature sensor, EMD detector and SMS alarms