27.6Vdc Nominal 1A DC Switch Mode Power Supply with Remote Fault Signalling

Model No. 24VDC1A by: Detection Supplies.
£68.00 Ex. VAT
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High efficiency cost effective power supply range ideal for use in Intruder, Access Control and General Security applications. Featuring a regulated 13.8Vdc output supplying continuous full rated current to load and a universal mains voltage input. Standby battery recharging is achieved within 24h for an 18Ah battery. Maximum battery life is assured using deep discharge protection to prevent premature battery failure when operating in standby mode for extended periods. Two sets of volt free contacts are provided to signal (i) loss of mains and (ii) battery and loss of output faults. An optional integrated output module allows multiple circuits to be individually fused.
  • Continuous full rated current to load
  • 18Ah Standby battery recharged to 80% within 24 hours
  • Lid and removal from wall tamper detection
  • Full electronic short circuit and overload protection on load output under mains operation
  • Universal mains input voltage 90-264Vac
  • Mains transient protection circuit
  • High efficiency electronics for reduced running costs and lower operating temperatures
  • Green Mains present LED Red Fault LED 
  • Installer safe design with all high voltage electronics fully shrouded
  • Volt free contact signalling mains failure
  • Volt free contact signalling output and battery faults
  • Reverse battery connection protection 
Technical Specifications
  • Individually Fused Outputs
  • Input Specification: Voltage (rated) 100-240Vac, Voltage (operating) 90-264Vac, Frequency: 50-60Hz, Mains Input: Fuse, Max. standby power: 0.8W (No load and no battery connected) 
  • Output Specification: Voltage: 27.0 – 28.0Vdc (27.6Vdc nominal) on mains power, 21.0 – 24.7Vdc on battery standby, Ripple: 100 mV pk-pk max 
  • Overload Fuse Protection
  • Enclosure external dimensions: width 330mm, height 275mm, depth 80mm
  • Max Battery Capacity: 2 x NP7 (7Ah)
  • Weight excluding battery: 3.16kg
  • Temperature -10 to +40°C (operating) 75% RH non-condensing, -20 to +80°C (storage) 
  • Output Current: 1A
  • Battery Charge Current: 0.5A
  • Mains LED (Green): yes
  • Fault LED (Yellow): yes
  • Max Mains Input Current (at 90Vac): 1.0A
  • F1 - Mains Input Fuse (20mm HRC): T2.0A
  • F2 - Output Fuse (20mm): F1.0A
  • F3 - Battery Fuse (20mm): 630mA
This power supply unit meets the essential requirements of the following European Directives: Low Voltage 2006/95/EC EMC 2004/108/EC, WEEE 2002/96/EC RoHs 2011/65/EU 
Height 275mm
Width 330mm
Depth 80mm


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