Haydon HAY-PSUEN54-2A Fire Power Supply
Haydon
- LED indicators
- Battery Backup
- Overload Protection
The Haydon HAY-PSUEN54-2A is a fully certified EN54-4 compliant, 2A fire-rated power supply unit, designed for use in fire detection and alarm systems (Read more)
PRODUCT DETAILS
The Haydon HAY-PSUEN54-2A is a fully certified EN54-4 compliant, 2A fire-rated power supply unit, designed specifically for use in fire detection and alarm systems. Built to meet the stringent requirements of safety applications, this PSU ensures a reliable and continuous 24V DC power output, even in the event of a mains failure.
Ideal for powering fire alarm control panels, sounder circuits, and auxiliary fire devices, the HAY-PSUEN54-2A includes intelligent battery charging, fault monitoring, and status indication—all housed within a durable, wall-mountable metal enclosure.
Features:
- 2A regulated 27.6V DC output suitable for fire alarm system applications
- EN54-4 certified – meets mandatory standards for life safety power supplies
- Intelligent battery management system with automatic switchover on mains loss
- Built-in LED indicators for mains, battery, and fault conditions
- Battery deep discharge protection to extend battery life
- Supports 2 x 7Ah 12V SLA batteries (not included)
- Tamper-protected steel enclosure with hinged door and cable entry points
- Easy wall mounting and cable termination for fast, professional installation
| Mains Input |
|
| Rated Voltage/Frequency |
110~240V AC ,47～63Hz |
| Input Current |
0.5A |
| Fuse Ratings |
F3A |
| Low Voltage
Output |
|
| Voltage (Mains Power) |
22.0 ~ 27.6 Vdc |
| Voltage (Battery Standby) |
20.0 ~ 26.0Vdc |
| Ripple |
<100 mV |
| Output Fuse |
F2A |
| Battery Fuse |
F2A |
| Imax A (With Charging） |
2A |
| Imax B (No Charging) |
2.8A |
| Battery Capacity |
2 x 7Ah |
| Ri max |
The maximum internal resistance of the battery and its
associated circuitry is 5Ω |
| I min |
0.1 Amp |
| Battery Charging |
Two stage charging: Constant current bulkcharging to 80%
capacity within 24 hours. Float charging to 100% within 48
hours |
| Constant Current Charge |
0.8A |
| Temperature Compensation |
Coefficient for charging voltage: -30mV/ ºC (0~50
ºC) |
| Low Battery Voltage Trigger |
Threshold voltage – 23V |
| Deep Discharge Protection Cut Out |
Threshold voltage – 21V |
| Terminal
connections |
|
| L N |
Mains Input |
| +OP - |
Voltage output to load |
| + BATT - |
Connection to batteries using leads (supplied) |
| TEMP |
Connection to battery temperature sensor (supplied) |
| GEN |
GEN Fault output normally closed；0.50 A @ 60Vdc 0.9Ω solid
state relay contacts, volt free； Open if Mains failed and battery voltage < 23V or fault PSU fault condition (see below) |
| EPS |
EPS Fault output normally closed; 0.50 A @ 60V dc 0.9Ω solid
state relay contacts, volt free; Open if loss of mains for > 10 seconds |
| Environmental
Conditions |
|
| Operating Temperature |
- 20 to +45°C (operating), - 20%~90% RH
non-condensing |
| Storage Temperature |
-25 to +85°C (storage),10%~90% RH non-condensing |
| Enclosure |
|
| Material |
1.2 mm steel white powder coated |
| Enclosure Dimensions w*h*d (mm) |
275 x 330 x 80 |
| Weight excluding batteries (KG) |
3.1 |
| Videos |
|---|
| No videos available |
| Files |
|---|
| Haydon HAY-PSUEN54-2A Datasheet |
| Haydon HAY-PSUEN54-2A User Manual |
| Links* |
|---|
| Haydon website |
| Haydon support site |
* External websites provide additional content that supports the content on connectec.uk however the external Web site is subject to change and is beyond the control of Connectec Ltd. Connectec cannot guarantee the accuracy of content on external websites and does not endorse the information or products on any external websites. You will be subject to the external websites own privacy policy when you follow these links.
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