EN54-27V6-5A – Battery Charger: 27V 5A 120W

The EN54 Series is a new generation / smart Power Supply that is designed to provide battery backed-up power in the event of either the PSU or the battery being disconnected or short circuited.

When the AC supply fails, the battery will automatically be connected and will provide power until the ac supply is restored.. If the battery has reached its disconnect voltage, it will automatically be disconnected to prevent deep discharge damage.

Designed for powering critical loads with battery back-up, in a wide range of Industrial applications and in particular Security installations and Access Control, with separate Load and Battery Charging circuits.

A wide range of Signals, Led’s and Alarms, all aimed at a providing the optimum solution for powering critical DC Loads.

An isolated Common Fault relay has been provided which will operate if any fault is found (This is a fail-safe signal so will signal a fault even if no power sources are on/connected.

 

SPECIFICATIONS TABLE

INPUT
Input voltage200 – 240 Vac +/-10%
Frequency Range50-60Hz
Temperature Range0 – 50ºC ambient (Convection cooled, cased)
Input fuseT2H 250V TR5
Input Current1.6Arms (200Vacin, full load)
Hold-up Time30mS (230Vacin, full load, no battery connected)
Power Factor0.45 (230Vacin, Full load)
No Load Power1.5W (230Vacin)
Start-upLess than 1.5 seconds
OUTPUT
Output Voltage27.6V (factory set for operation with thermistor)
Output Current4A
Power limit115% +/-10%
80-85% Typ.@ 230Vacin, Full load
OVP105-125% (latching and non dissipative) recycle input to restart
Short Circuit protectionHiccup mode
SignalsMains Fail, Battery O/C, Charger Loss, Battery Low- LED’s & open collector – 100mA sink, Status LED Green = Flashing = OK
Common Fault (Volt free) relay
2x Customer options – open collector – 30mA sink HiZ indication =0.6J
Battery Powerfail signal = 100mS
Current limitPrimary side power limit
Thermal protectionPrimary side thermal protection (non-latching)
Load regulation+/- 0.75%
Line regulation+/- 0.5%
Noise & ripple0.5% (230Vacin, Full load, BW = DC – 10MHz)
BATTERY
ChargerCurrent limited @ 1 A
Temp compensationConnector provided for user to add 100KΩ  thermistor (β=4400) Suitable for standby use
Deep discharge protection21V +/-0.25V