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Dual Circuit Automatic Switching, Zero Interruption For Fire Devices: The unit supports main commercial power and built-in maintenance-free battery dual power supply. When mains power fails, it switches to battery power within 0.1s without power outage, ensuring smoke sensors, fire alarm panels and monitoring modules keep working continuously to capture fire signals in time.
Digital Display & Multi-channel Indicator Light Real-time Status Monitoring: Equipped with clear digital tube to display real-time output voltage, matched with 6 status indicator lights for main power, backup power, charging and fault prompts. It intuitively feeds back main power failure, battery failure and output short-circuit faults, helping maintenance staff locate problems at a glance without complex testing tools.
Complete Multi-layer Electrical Safety Protection, Avoid Fire Hidden Dangers: Integrated overcharge, over-discharge, overload, short-circuit and reverse connection protection circuits. When circuit overload or short circuit occurs, the power supply will automatically cut off output to prevent circuit burning. The built-in temperature control module avoids overheating aging of internal circuit boards during long-term operation.
Compact Wall-mounted Cabinet, Space-saving & Easy Installation: The cabinet adopts 1.2mm thick cold-rolled steel plate with anti-rust electrostatic spraying, small and lightweight for wall-mounted installation inside electrical shafts. Pre-reserved wiring holes and lockable security door design prevent irrelevant personnel from misoperation, suitable for small and medium-sized buildings with limited equipment room space.
Standard 24V DC Stable Output, Wide Matching Compatibility: Fixed 24V DC rated output, matched with most mainstream fire alarm detectors, fire monitoring modules and fire linkage equipment on the market. We support customized output current from 3A to 20A according to customer’s fire equipment load quantity, flexible for different project matching demands.
| Technical Parameters |
| Item | Technical Specification |
| Product Name | Fire Equipment Special Power Supply Box |
| Rated Input Voltage | AC220V 50Hz |
| Rated Output Voltage | DC24V |
| Optional Output Current | 3A / 5A / 10A / 15A / 20A |
| Power Switching Time | ≤0.1s Mains to Battery Switch |
| Display Mode | Digital Tube Real-time Voltage Display + Multi-status Indicator Lights |
| Built-in Battery | Maintenance-free Lead-acid Storage Battery |
| Protection Functions | Overcharge, Over-discharge, Overload, Short-circuit, Reverse Connection Protection |
| Alarm Function | Light Fault Alarm for Main Power, Backup Power, Output Circuit Abnormality |
| Installation Mode | Wall-mounted |
| Cabinet Material | 1.2mm Cold Rolled Steel Plate, Anti-corrosion Electrostatic Spraying |
| Cabinet Protection Grade | IP30 |
| Applicable Ambient Temperature | -10℃ ~ +50℃ |
| Standard Battery Service Life | 6 Years |
| Product Uses |
◉ Residential & Commercial Building Fire Alarm Systems: Installed in electrical shafts to supply steady 24V DC power for smoke detectors, temperature sensors and manual fire alarm buttons, guaranteeing fire signal transmission when mains power cuts off.
◉ Underground Garage & Tunnel Fire Monitoring: Compact wall-mounted design adapts to narrow underground electrical shafts, continuously powering fire smoke sensors and fire signal monitoring modules in damp enclosed underground spaces.
◉ School, Hotel & Office Building Fire Control Rooms: Used as secondary backup power for fire alarm control panels, cooperating with main EPS power supply to form dual-layer fire power guarantee system for dense crowd public buildings.
◉ Factory Workshop & Industrial Park Fire Systems: Matched with industrial fire detection sensors and fire linkage modules, multi-layer short-circuit protection avoids power supply breakdown caused by unstable factory power grid.
◉ Small Shopping Malls & Community Supporting Facilities: Small-current compact models for small-scale fire detection systems of small commercial venues, with low space occupation and simple wall-mounted construction.
| Product Operate Guide |
Check AC input wiring and battery terminals are tightly connected before power-on. Observe digital tube and indicator lights to confirm normal main power charging state. Cut off input power to simulate power failure and test automatic battery switching function. Download full English operation PDF for wiring and daily maintenance steps.
| FAQ |
Q: What fire equipment can this power supply drive?
A: It outputs standard DC24V, compatible with smoke detectors, temperature sensors, manual alarm buttons, fire monitoring modules and small fire alarm controllers. We can adjust output current according to your total equipment load.
Q: How long can the built-in battery sustain power supply after mains power failure?
A: Standard configuration can maintain continuous output for 90 minutes to meet fire acceptance standards. We can expand battery capacity to realize 120-minute backup power for large public building projects.
Q: Does the power box send out alarm signals when a circuit fault occurs?
A: Yes. Corresponding indicator light will light up to remind staff of main power loss, battery failure or output short circuit, realizing visual fault prompt without extra sound alarm device.
Q: Can this fire equipment power supply be used together with EPS emergency power supply?
A: Absolutely. This small wall-mounted power box supplies low-power fire detection sensors, while large EPS provides power for fire pumps and lighting, forming a complete hierarchical fire emergency power supply system for buildings.
Q: Is the cabinet suitable for damp underground electrical shaft environment?
A: The IP30 sealed cabinet with side heat dissipation holes can work normally in slightly damp environments. For heavy humidity underground garages, we can add internal dehumidification accessories to prevent circuit board condensation.