The C-TEC BF560-24 is a 24V 1.5A switch mode/digital hybrid power supply in a PVC enclosure, certified to EN54-4/A2 by the LPCB and VdS. It houses two 12V batteries of up to 3.2Ah and can be surface or flush mounted without a bezel. It 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.
Key features
- Certified to EN54-4/A2 by the LPCB and VdS
- Plastic cover on the PSU PCB guards against touching live parts
- Single-pole volt-free changeover relay that switches on any fault condition
- Supply present, general fault, fault type and auxiliary equipment fault indicators
- Two selectable battery charge currents
- Battery resistance monitoring to EN54-4/A2; fault impedance limits can be optimised to suit the load current
- Mains fail simulation mode
- On-board temperature sensor, with an optional BF322 remote battery temperature sensor
- Can be customised with a BF423 configurator and PC (changing parameters takes the PSU outside the scope of EN54-4)
- Electronic functions comply with EN50131-6 grades 1-4 for security applications
- BF560-24/E caged and BF560-24/C PCB-only versions available
Technical specifications
- Output: 24V DC, total output current limited to 1.5A
- I max.a: 1.3A or 0.8A selectable; I max.b: 1.5A (charging turned off)
- Mains supply: 230V 50/60Hz, rated current 400mA r.m.s.
- Battery charge capacity: 2Ah up to 12Ah (charged to 80% in 24 hours)
- Batteries (housed): 2 x 12V 3.2Ah VRLA max. (min. 2 x 12V 2Ah)
- Indicators: 3 external (Supply Present, General Fault, Auxiliary Fault) and 2 internal (Hazardous Voltages Present, PSU Status)
- Dimensions: 380mm (W) x 235mm (H) x 96mm (D)
- Flush mounting hole: 367mm (W) x 220mm (H) x 75mm (D); no bezel required
- Construction: PVC lid and base, RAL7035 textured finish
- IP rating: IP30 (indoor use only)
- Weight: 1.55kg (without batteries)
- Operating temperature: -5°C to +40°C, max. 95% relative humidity
