DESCRIPTION

A buffer PSU is intended for an uninterrupted supply to devices requiring stabilised voltage of 24V DC
(+/-15%). The PSU provides voltage of U=27,6 V DC. Current efficiency:
1. Output current 5A + 0,5A battery charge*
2. Output current 3,5A + 2A battery charge*

Total device current + battery: 5,5A max*.
In case of power decay, a battery back-up is activated immediately. The PSU is constructed based
on the switch mode PSU, with high energy efficiency. The PSU is housed in a metal enclosure (colour RAL
9003) which can accommodate two 17Ah/12V batteries. A micro switch indicates door opening (front
cover).

· DC 27,6V/5A uninterruptible power supply*
· fitting battery: 2x17Ah/12V
· wide range of mains supply: 176÷264V
· high efficiency 83%
· battery charging and maintenance control
· excessive discharging (UVP) protection
· jumper selectable battery charge current 0,5A/2A
· battery output full protection against short-circuit
and reverse polarity connection
· LED indication

Features:
· FAC technical output indicating AC power loss
– OC and relay type
· FPS technical output indicating PSU failure
– OC and relay type
· FLB technical output indicating battery low voltage
– OC and relay type
· protections:
· SCP short-circuit protection
· OVP overvoltage protection
· overvoltage protection
· against sabotage
· overload protection (OLP)