Data Sheet

· 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
PSU features
Tel. [phone], fax: [phone], www.pulsar.pl, e-mail: [e-mail]
The power supply modules are designed for mounting in an additional housing. In order to
meet the requirements of the EN54-4 + A1 + A2 and EN12101-10 + AC standards, the enclosure must
be of appropriate construction. IP30 protection class is required.
Buffer power supply modules has been designed for an uninterrupted supply of fire alarm systems,
smoke and heat control systems, fire protection equipment and fire automatics requiring stabilized voltage of
24 V DC (±15%). The power supplies are fitted with two independently protected AUX1 and AUX2 outputs,
which provide a voltage of 27,6 V DC and the total current efficiency depending on the version:
Built-in power supply
module model
Battery Continuous operation
Imax a
Instantaneous operation
Imax b
EN54M-2A7
EN54M-2A7-17
7,2 Ah 1,6 A
2 A
7÷20 Ah 1,2 A
EN54M-3A7-17
EN54M-3A17-40
7÷20 Ah 2,2 A
3 A
17÷45 Ah 1,2 A
EN54M-5A7-17
EN54M-5A17-40
EN54M-5A40-65
7÷20 Ah 4,2 A
5 A
17÷45 Ah 3,2 A
40÷65 Ah 2,4 A
EN54M-10A17-40
EN54M-10A40-65
17÷45 Ah 8,2 A
10 A
40÷65 Ah 7,4 A
In case of power loss, the PSU switches to battery power, providing uninterruptible power supply.
The power supply modules units works with maintenance-free lead acid batteries made with AGM
technology or gel technology.
EN54M series power supplies module
Power supplies for fire alarm systems 27,6 V DC
Pulsar
®