User Instructions

www.pulsar.pl EN54C RED POWER plus
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3. Technical description.
3.1. General description.
The buffer power supplies 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:
The power supply model
Battery
Continuous operation
Imax a
Instantaneous operation
Imax b
EN54C-2A7
EN54C-2A17
7 Ah
1,6 A
2 A
17 Ah
1,2 A
EN54C-3A7
EN54C-3A17
EN54C-3A28
7 Ah
2,6 A
3 A
17 Ah
2,2 A
28 Ah
1,8 A
EN54C-5A7
EN54C-5A17
EN54C-5A28
EN54C-5A40
EN54C-5A65
7 Ah
4,6 A
5 A
17 Ah
4,2 A
28 Ah
3,8 A
40 Ah
3,2 A
65 Ah
2,4 A
EN54C-10A17
EN54C-10A28
EN54C-10A40
EN54C-10A65
17 Ah
9,2 A
10 A
28 Ah
8,8 A
40 Ah
8,2 A
65 Ah
7,4 A
In case of power loss, the PSU switches to battery power, providing uninterruptible power supply.
The power supply unit is housed in a metal enclosure (color red RAL 3001) with space for battery.
Power supply units works with maintenance-free lead acid batteries made with AGM technology or gel
technology.