The Kentec K408 is an EN54-4 approved, universal-input switch mode power supply and battery charger for fire alarm systems. It delivers 10.25A (a full 290W of continuous power) at 24V DC. This is the chassis-only version, for fitting into a suitable enclosure. It fully monitors both the primary and secondary power sources.
Key features
- Approved to EN54-4 (LPCB ref. 360a)
- Continuous 8A load output while charging fully depleted batteries
- Charges sealed lead acid batteries from 7Ah up to 45Ah
- Universal 94V to 253V AC input
- Temperature-compensated battery charging and battery high impedance monitoring
- Monitoring with indication and outputs for mains fail, battery disconnection, low battery and earth fault
- Low battery cut-out
Technical specifications
- Input voltage: 94 to 253V AC 50/60Hz
- Output voltage: 24V DC
- Total output current: 10.25A
- Load current: 8.0A (with flat battery)
- Battery charge current: 2.25A max
- Battery capacity: 7Ah to 45Ah (sealed lead acid)
- Mains fuse: 5A 20mm HRC
- Load fuses: 10A self-resetting
- Warning outputs (switched -ve, 50mA max): mains failed, battery disconnected, battery low, battery overcharge, earth fault, common fault
- Chassis dimensions: 120 x 260 x 65mm
- Construction: 1.2mm mild sheet steel, epoxy powder coated, BS 00 A 05 grey
- Weight: 2kg (chassis only)
- Operating temperature: -5°C to +50°C
