Main Features
The rectifier uses the active Power Factor Compensation(PFC) technology and the power factor is up to 0.99.
The power system has wide AC input voltage: 85Vac～300Vac.
The rectifier uses soft switching technology, raising the efficiency above 95.5％.
The rectifier has Ultra-low radiation. With advanced EMC design, the rectifier meets international standards such
as CE、NEBS and YD/T983.Both the conducted and radiated interference reach Class B.
The rectifier safety design complies UL，CE and NEBS.
The rectifier is of high power density.
The rectifier is hot pluggable. It takes less than1 min to replace a rectifier.
The rectifier has two optional over-voltage protection methods: hardware protection and software protection. The
latter one also has two optional modes: lock-out at the first over-voltage and lock-out at the second
over-voltage.
The controller module has perfect battery management. The management functions includes BLVD,
temperature compensation, auto voltage regulation , stepless current limiting ,battery capacity calculation and
on-line battery test, etc.
History alarm records：M221S/M222S controller supports 200 history alarms and 1000 history data records,
M225S controller supports 200 history alarms and 512 history data records. And M820B/M830B supports
historical alarm record up to 3000 pcs and historical record up to 60000 pcs.
Battery test data: can record up to 10 sets of battery test data.
The power system is of network design. Providing multiple communication ports (such as RS232, modem and
dry contacts), which enables flexible networking and remote monitoring.
The power system has perfect lighting protection at both AC side and DC side.
The power system has complete fault protection and fault alarm functions.
The power system uses " controller power-losing " control mode . In the indoor or outdoor equipment room
without guard and maintenance, the " controller power- losing mode" can protect the battery from deep
discharge.
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