The Kentec KD2540015 is a boxed 5.25A, 24V fire alarm power supply from Kentec's Syncro Power range, certified to EN54-4 and finished to match Kentec's Syncro styling. The enclosure has space for batteries up to 26Ah. The KD version is fitted with a dual output board, which provides two independent supply paths between the power supply and a remote fire alarm control panel, in line with EN54-4 clause 6.4 and BS 5839-1 clause 12.2.2.m.
Key features
- Certified to EN54-4
- Stable, fully regulated, true 24V output under all power conditions, including when running on standby batteries
- Dual fused output for powering fire alarm control panels remotely
- Microcontroller-managed, temperature-compensated battery charging to maximise battery life
- Deep discharge protection: batteries disconnect at 19V
- Monitored fault outputs for mains failure, battery disconnected, battery low, charger fault and earth fault, plus a common fault relay
- Power On (green) and Fault (yellow) indicators on the front panel
- 230V or 110V AC input (link selectable)
Technical specifications
- Maximum load current: 5.25A continuous, with a maximum battery charge output of 1.25A
- Load output voltage: 19-30V DC ±1%
- Maximum ripple: 200mA
- Load fuse: 5A self-resetting polyfuse
- Maximum current draw from batteries: 5A
- Battery charge voltage: 27.4V DC nominal at 20°C (temperature compensated from -5°C to 45°C)
- Battery charge current: two stage, constant voltage, 1.25A max
- Battery capacity: up to 26Ah
- Mains input: 230V AC 50/60Hz or 110V AC 50/60Hz
- Mains fuse: 250V 3A SB, 5 x 20mm
- Common fault output: normally energised volt-free changeover relay, 30V DC 1A
- Individual fault outputs: open collector, 50mA
- Dimensions: 500 x 460 x 190mm
- Construction: 1.2mm mild steel, epoxy powder coated, BS 00 A 05 grey fine texture
- IP rating: IP30
- Operating temperature: -5°C to 45°C
