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PSBEN2024B
BLACK POWER
6
3. Technical description.
3.1 General description.
The buffer power supply is designed in accordance with the requirements of the EN 50131-6 standard,
grade 1÷3 and II environmental class. It is intended for an uninterrupted supply of alarm system devices requiring
stabilized voltage of 24 V DC (+/-15%).
Depending on a required protection level of the alarm system in the installation place, the PSU efficiency
and the battery charging current should be set as follows:
* Grade 1, 2 - standby time 12h
Output current 0,58 A + 1,5 A battery charge
** Grade 3 - standby time 30h if the faults of the main power source are reported to the Alarm Receiving
Centre - ARC (in accordance with 9.2
– EN 50131-1 standard).
Output current 0,23 A + 1,5 A battery charge
- standby time 60h if the faults of the main power source are reported to the Alarm Receiving
Centre - ARC (in accordance with 9.2
– EN 50131-1 standard).
Output current 0,116 A + 1,5 A battery charge
*** General use
– if the PSU is not mounted in an installation complaint with the EN-50131 standard, the
acceptable current efficiency amounts to:
1. Output current 2 A + 0,2 A battery charge
2. Output current 1,6 A + 0,6 A battery charge
3. Output current 1,2 A + 1 A battery charge
4. Output current 0,7 A + 1,5 A battery charge
Total current of the rec battery: 2,2 A max.
In case of power decay, a battery back-up is activated immediately. The PSU is housed in a metal
enclosure (color: RAL 9005 - black) with battery space for a 2x7 Ah/12 V battery. It is fitted with micro switches
indicating unwanted door opening (front panel) and detachment from the mounting surface.
DOPTIONAL POWER SUPPLY CONFIGURATIONS:
(visualization available at
1. Buffer power supply PSBEN 27,6 V/2x1 A/2x7 Ah/INTERFACE
- PSBEN 2024B + LB2 2x1 A (AWZ585, 2x7 Ah+INTERFACE
2. Buffer power supply PSBEN 27,6 V/4x0,5 A/2x7 Ah/INTERFACE
- PSBEN 2024B + LB4 4x0,5 A (AWZ574, 2x7 Ah+INTERFACE
3. Buffer power supply PSBEN 27,6 V/24 V/2 A/2x7 Ah/INTERFACE
- PSBEN 2024B + RN25024 (27,6 V/24 V)+ 2x7 Ah+INTERFACE
4. Buffer power supply PSBEN 27,6 V/24 V/2x1 A/2x7 Ah/INTERFACE
- PSBEN 2024B + RN25024 (27,6 V/24 V)+LB2 2x1 A (AWZ585, 2x7 Ah+INTERFACE
