The AD-55B buffer power supply unit is an electrical device that converts 230 V mains voltage to DC voltage. Its specificity is that we can connect an external battery to it, from which energy will be drawn in case of a 230 V power outage, ensuring the continuity of the receiving device.
The perforated metal casing facilitates airflow, which results in more efficient cooling of the unit. The screw terminals are marked accordingly and are used to connect the cable entries in accordance with electrical principles. The installer can adjust the output voltage in a given range with a potentiometer.
| Features / filters | |
| AC input frequency | 50/60 |
| AC input voltage | 100 - 240 |
| Batteries included | No |
| DC output current | 2 |
| DC output voltage | 27.6 |
| Depth | 97 |
| Height | 38 |
| Housing material | Metal |
| Operating relative humidity (H-H) | 20 - 90 |
| Operating temperature (T-T) | -10 - 60 |
| Package depth | 170 |
| Package height | 140 |
| Package type | Box |
| Package weight | 2.8 |
| Package width | 220 |
| Product colour | Grey |
| Storage relative humidity (H-H) | 10 - 95 |
| Storage temperature (T-T) | -20 - 85 |
| Weight | 466 |
| Width | 159 |
| Basic technical parameters | |
| Output voltage CH1 | 27.6 V (24 V) |
| Output voltage CH2 | 26.5 V (24 V) |
| Output current CH1 | 1.8 A |
| Output current CH2 | 0.16 A |
| Output voltage range | CH1:24~29 V |
| Mains voltage | 88~264 V AC 47~63Hz; 124~370 V DC |
| Input current | 1.6 A/115 V AC 1 A/230 V AC |
| Efficiency | 74% |
| Overload protection | CH1:105 ~ 150% Type of AC protection: cut-off when the critical value is exceeded, automatic resumption after returning to normal operation. UPS circuit: internal fuse |
| Overvoltage protection | CH1:31.74~37.26 V |
| Min. battery voltage | 20~22 V |
| Working temp. | -10℃~60℃ |
| Humidity | 20~90% RH |
| Storage conditions | -20℃~85℃,10~95% Y/Y |
| Dimensions | 159 x 97 x 38 mm (D x S x W) |
| Weight | 0.5 kg |
