Pulsar EN54M Series User Manual

www.pulsar.pl EN54M RED POWER plus
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3. Technical description.
3.1. General description.
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.
3.2. Block diagram.
The power supply modules has been manufactured based on a high-efficiency system of AC/DC
converter. Applied microprocessor circuit is responsible for the full diagnostics of the PSU parameters and
batteries. The figure below shows a flowchart of the power supply, along with selected functional blocks which
are essential for the proper functioning of the unit.
Fig. 1. Block diagram of the PSU module.

Pulsar EN54M Series Specifications

General

Brand	Pulsar
Model	EN54M Series
Category	Control Unit
Language	English