DP-PSUEN EN54-4 Fire Alarm Power Supply Series
– INSTALLATION & OPERATION MANUAL
DP-PSUEN Series Installation & Operation Manual Rev 11.1 220323.docx
E&OE
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1
GENERAL
1.1
PRODUCT RANGE
The DP-PSUEN series of product consists of the following products:
▪
DP-PSUEN1.5
EN54 24(27.6)VDC 1.5 Amp PSU, Space for 2x 7Ah batteries
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DP-PSUEN3-L
EN54 24(27.6)VDC 3.0 Amp PSU, Space for 2x 17Ah batteries
▪
DP-PSUEN3-S
EN54 24(27.6)VDC 3.0 Amp PSU, Space for 2x 7Ah batteries
▪
DP-PSUEN5
EN54 24(27.6)VDC 5.0 Amp PSU, Space for 2x 17Ah batteries
The power supplies can be supplied in either a medium or large box which can house 7Ah or 17AH batteries
respectively.
1.2
FEATURES
The DP-PSUEN series of power supplies are designed to be used for fire alarm control and indicating equipment
complying with EN54-2 and EN54-4.
The power supply range consist of a 5 amp, 3 amp and 1.5 amp devices, providing a nominal 27V with two 12V
lead acid batteries for standby operation without AC power. The power supplies share the following features:
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Microprocessor controlled operation and protection
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On-demand battery charging and load output current sharing
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Automatic output reconnection after short circuit fault
▪
No user serviceable fuses, outputs protected by electronic E-fuses
▪
Two independent switched outputs with programmable (jumper selectable) control inputs
▪
On board or remote temperature sensing (jumper selectable) with optional remote sensor
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Separate AC healthy, battery fault and power supply fault outputs
▪
Three fault outputs, AC Power Fail, Battery Fault, PSU Fault
▪
Form A, normally closed floating relay fault outputs
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Four LED status display
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Over-voltage output protection
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Battery-free option selected by a jumper
The on-demand load sharing capability gives the power supply range exceptional flexibility. This allows rapid large
capacity battery charging with either extended standby hold-up duration at light loads, or short high current peak
loads where spare output capacity is diverted to battery charging.
2
ELECTRICAL AND OPERATIONAL SPECIFICATIONS
SPECIFICATIONS
AC Input Voltage
230VAC ±10%, 50Hz.
Maximum Input Continuous
Current
DP-PSUEN5, 1.5A
DP-PSUEN3, 0.9A
DP-PSUEN1.5, 0.45A
Peak inrush current limit
20A maximum.
Recommended Switched Spur
Input Fuses
DP-PSUEN5, 250V T3.15A
DP-PSUEN3, 250V T3.15A
DP-PSUEN1.5, 250V T1A
Voltage Output AC Present
Minimum 25.0Vdc, Maximum 28.5Vdc.
Voltage Output Standby
Minimum 20Vdc, 24 V Nominal
Total Continuous Output Current
(Imax.b)
DP-PSUEN5, 5A
DP-PSUEN3, 3A
DP-PSUEN1.5, 1.5A
Current output with battery
charging (Imax.a)
DP-PSUEN5, 4.3A
DP-PSUEN3, 2.3A
DP-PSUEN1.5, 1.2A
