UPS D48-12
UPS D48-12 is intended for providing of assured trouble-free feed of radio equipments on telephone exchanges by the DC-voltage 48V.
D48-12 provid the controlled from distance signaling of presence of input voltage 220V and control working capacity power supplies (“dry contacts”).
UPS is intended for operation in a temperate climate with temperature ambient air from minus 10 to plus 40 º C and relative humidity up to 80% at plus 25 º C.
Distinctive features of the product:
- UPS possibility to connect two batteries to the control of their working capacity;
- battery (AB) can automatic charge and subcharge;
- instantaneous switching of burden on the output voltage from a battery and in a reverse order accordingly at disappearance and appearance of input voltage;
- battery can switch off automatically with deep discharge;
- digital readout of output voltage, load current, the charging current (discharge) the battery;
- correction of charging voltage depending on the temperature of battery and monitoring their performance.
| Feature | Value |
| input voltage, V | 160…270 |
| input frequency, Hz | 40…60 |
| shape factor of input current, % | 96 |
| output DC voltage (depending on the temperature of battery and its degree of charge), V |
42…55.2 |
| set the manufacturer of the charging battery, A | 0.7…7 |
| output current (max), A | 12 |
| instability in voltage regulation, no more, % | 1 |
| instability in current regulation, no more, % | 1 |
| output voltage ripple in voltage regulation and current regulation: | |
| effective value, %, | not more 0.05 |
| peak value, % | not more 0.1 |
| psophometric noise in the range from 0,3 to 3,4 kHz, mV | not more 1 |
| efficiency, % | not less 90 |
| dimensions, mm | 482х210х90 |
| weight, kg | не більше 3.5 |
| warranty, years | 5 |
