C-Tec 24V 1.5A EN54-4 Switch Mode PSU
£97.96 (inc VAT: £117.55)
Summary
The C-TEC BF560-24 is a professional-grade 24V 1.5A switch mode power supply unit specifically designed for fire alarm and security applications. This powerful switch mode/digital hybrid PSU has been rigorously tested and certified to EN54-4/A2 standards by both the LPCB and VdS, ensuring compliance with the highest industry standards for fire safety equipment.
Engineered for reliability and safety, the BF560-24 features a protective plastic cover on the PSU PCB to guard against accidental contact with live parts. The unit can be fully customised using a BF423 configurator to suit exact application requirements, making it an ideal choice for powering beam detectors, auto-dial communicators, aspirating smoke detectors, auto-open vent systems, auxiliary sounder systems, and any other device performing mandatory functions within a fire alarm system.
Features
- Certified to EN54-4/A2 by the LPCB and VdS
- Powerful switch mode/digital hybrid PSU with customisation capability
- Plastic cover on PSU PCB guards against touching live parts
- Single-pole voltfree changeover relay that switches for any fault condition
- Multiple indicators including supply present, general fault, fault type and auxiliary equipment fault
- Two selectable battery charge currents
- Battery fault impedance limits can be optimised to suit load current
- Mains fail simulation mode
- Improved on-board temperature sensor with optional remote sensor
- Electronic functions comply with EN50131-6 grades 1-4 for security applications
- Available in caged (BF560-24/E) and PCB-only (BF560-24/C) versions
- Bi-directional data port for status monitoring
- Battery resistance monitoring as mandated by EN54-4/A2
FAQ
What applications is the BF560-24 suitable for?
The BF560-24 is ideal for powering beam detectors, auto-dial communicators, aspirating smoke detectors, auto-open vent systems, auxiliary sounder systems, or any other device performing a mandatory function of a fire alarm system.
Can the PSU be customised for specific requirements?
Yes, the BF560-24 can be customised using a BF423 configurator and PC. Configurable parameters include float voltage temperature compensation, battery charge rate, battery impedance, and configurable input/output settings. However, it’s important to note that changing the PSU’s parameters is outside the scope of EN54-4 and any changes must be tested by the responsible person for correct operation.
What do the LED status indicators mean?
The PSU status LED provides different flash patterns: 1 flash = Mains Failure, 2 flashes = Battery Voltage Low, 3 flashes = Battery Voltage Critical, 4 flashes = Charger Failure, 5 flashes = Charger OK, 6 flashes = No Batteries Fitted, 7 flashes = Battery Resistance Fault, 8 flashes = Output Over Voltage.
What certifications does the BF560-24 hold?
The BF560-24 is certified to EN54-4/A2 by both the LPCB (Loss Prevention Certification Board) and VdS, ensuring compliance with European standards for fire detection and alarm systems. It also complies with EN50131-6 grades 1-4 for security applications.
What battery types are compatible?
The PSU supports 2 x 12V VRLA batteries with a capacity range from 2Ah minimum up to 3.2Ah maximum (as determined by cabinet size). The battery charge capacity ranges from 2Ah up to 12Ah, with batteries charged to 80% capacity in 24 hours.
Specifications
- Approvals/Certifications: Certified to EN54-4/A2 by the LPCB & VdS
- Application/Operation: Boxed mains to regulated DC power supply providing 1.5A @ 24V DC with single pole volt-free changeover relay
- Mains Supply: 230V 50/60Hz
- Mains Rated Current: 400mA r.m.s.
- Total Output Current: Limited to 1.5A (Max. output current)
- Output Current Maximum A: 1.3A or 0.8A selectable
- Output Current Maximum B: 1.5A, charging turned off via CONN6
- Battery Charge Capacity: 2Ah up to 12Ah (battery charged to 80% capacity in 24 hrs)
- Maximum Battery Size And Type: 2 x 12V 3.2Ah VRLA (min. size is 2 x 12V 2Ah)
- Indicators: 3 external – Supply Present (green); General Fault (amber); Auxiliary Fault (amber) and 2 internal – Hazardous Voltages Present (red) and PSU Status (amber)
- Connections: Mains Input (CONN1); Supply Output (CONN3); Battery Input (CONN3); Fault Relay (CONN4); Charge Off Input (CONN5)
- Expansion Connections: Remote thermistor connection via PL3 terminals
- Product Dimensions: 380 W x 235 H x 96 D mm (hole required for flush mounting = 367 W x 220 H x 75 D mm)
- Construction And Finish: PVC lid and base; RAL7035 textured
- IP Rating: IP30 (designed for indoor use only)
- Weight: 1.55kg (without batteries)
- Operating Conditions/Temperature: -5ºC to +40ºC, Max relative humidity: 95%
Downloads
- Datasheet (Adobe PDF)
Additional information
| Weight | 1.55 kg |
|---|---|
| Device Type | |
| Battery Charging | Yes |
| Output | 1.5A |
| Maximum Batteries | 2x 3Ah |

