Product description:
Impulse buffer power supply with 35W power and 27V output voltage with installation cabinet that allows to place two 5Ah / 7Ah 12V batteries outside the devices. (no batteries included). Cabinet buffer power supply designed for uninterrupted supply to teletechnical devices such as base stations or wireless access points based on the MikroTik RouterBoard platform (RB411, RB433, RB493, RB450, RB600). This type of solution is especially recommended in critical network points ensuring uninterrupted operation of devices. During a power outage from the AC power grid, power is supplied from the supplied batteries. After the power returns, the batteries are recharged from the network. The buffer PSU can also be used to power devices such as: control panels, access control panels, sensors, electromagnetic jumpers, CCTV cameras. The nominal operating voltage of the power supply is 27V. (range 22.5-27.6V). The power supply uses a modern pulse converter with an efficiency of 84% produces direct voltage with very good parameters (output voltage tolerance +/- 1% at the level of ripple and noise not exceeding 120m Vp-p). The use of such a modern transducer leaves behind the heavy linear converters, which were used until recently, not long ago.
The most important features:- Wide supply voltage range (88-264VAC; 124-370VDC)
- Output protections: against short circuit, overload, overvoltage
- Battery protection against deep discharge
- High efficiency
- Small dimensions and weight
- High reliability c
| Electrical specification | |
| Supply voltage | Alternating: 88-264V - 47-63Hz fixed: 124-370V |
| PSU power | 35W |
| Output voltage | 27,6V |
| Output current | 1.2A |
| Number of exits | 1 |
| Battery charging current | 0.2 - 0.75A |
| Processing efficiency | 74% |
| Output voltage tolerance | +/- 1% |
| Impact of voltage changes on voltage output | +/- 0.5% |
| Impact of 0 ... 2A load changes on the output voltage | +/- 0.5% |
| Noise and noise | 100m Vp-p |
| Security | |
| Overvoltage protection | 14.5 V |
| Short circuit protection | Yes |
| Overload protection | 105 -150% of the nominal output power |
| Overload protection type | Output voltage cut-off - automatic return to normal operation after loss of overload |
| Mechanical specification | |
| Housing | wall cabinet white |
| Level of security | IP20 |
| dimensions | 220 x 200 x 130 mm (L / W / D) |
| Weight | 1,8kg |
| Place for the battery | 5Ah or 7Ah (2 pieces) |
| Tamper protection | None - can be installed on request |
| Optical signaling of work | AC signaling diodes - OK. and DC - OK. |
| Certificates | CE, ROHS |
| Working temperature | -10 ... + 60ºC |
| Humidity | 20 ... 90% without condensation |
| The effect of temperature on the output voltage | +/- 0.03% / ºC (0-50ºC) on CH1 output |
| Estimated time of MTBF trouble-free operation | 589 thousand hours |