C-TEC 5 Series 24V 1.5A EN54-4 Plastic Boxed PSU (2 x 12V 3.2Ah Max) (BF560-24)

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