1. PSU features.
Built-in power supply module
In accordance with standards: EN 54-4,
EN12101-10
27,6 V DC uninterruptible power supply
available versions with 2 A/3 A/5 A/10 A current
efficiencies
available versions with space for 7 Ah – 65 Ah
batteries
independently protected outputs AUX1 and AUX2
DIN rail mounting using additional EN54M-DIN1
bracket (optional equipment)
cooperation with EN54C-LB4 and EN54C-LB8 fuse
modules (optional equipment)
cooperation with EN54C-LS4 and EN54C-LS8
sequential modules (optional equipment)
optical indication – LED panel EN54M-LED (option)
high efficiency (up to 89%)
low level of voltage ripple
microprocessor-based automation system
measurement of the resistance of the battery circuit
automatic temperature-compensated charging
automatic battery test
two-stage battery charging process
accelerated battery charging
monitoring of the continuity of the battery circuit
monitoring of the battery voltage
monitoring of charging and maintenance of the
batteries
deep discharge battery protection (UVP)
battery overcharge protection
the LoB low battery voltage indication
battery output protection against short-circuit and
reverse connection
output voltage control
fuse monitoring of AUX1 and AUX2 outputs
relay output of collective failure ALARM
EPS relay output indicating 230 V power loss
the EXTi input of external failure
protections:
SCP short-circuit protection
OLP overload protection
OVP overvoltage protection
Surge protection
convection cooling (forced only in the EN54M-
10Axx)
warranty - 3 years from the production date