The Kentec KD2525003 is a boxed 2.5A, 24V fire alarm power supply and battery charger 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 12Ah. 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
- Microcontroller-managed, temperature-compensated battery charging to maximise battery life
- Status indicators and monitored fault outputs
- 230V or 110V AC input (link selectable)
- Dual output board fitted for two independent supply paths to the control panel
- Enclosure finished in matching livery with power on and power fault indications
Technical specifications
- Maximum load current: 2.5A continuous, with a maximum battery charge output of 1.0A
- Battery capacity: up to 12Ah
- Mains input: 230V AC 50/60Hz or 110V AC 50/60Hz (link selectable)
- Mains fuse: 250V 3A SB, 5 x 20mm
- 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)
- Deep discharge prevention: battery disconnects at 19V
- Common fault output: normally energised volt-free changeover relay, 30V DC 1A
- Individual fault outputs (battery disconnected, battery low, charger fault, earth fault, mains failed): open collector, 50mA
- Indicators: Power On (green LED), Fault (yellow LED)
- Dimensions: 500 x 355 x 117mm
- 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
