100 w DC UPS  – No – Break ™ DC Uninterruptible Power Supply TECHNOLOGY

The New SR100Hi 100 W power supply is designed to provide DC power to lead-acid batteries for critical backup applications.All the functionality and durability has been retained with a more modern and easier to understand range of products being developed.Form factor and connectivity remains the same, so they will fit into the slots occupied by the old range – the legend continues!

No-Break ™ DC UPS systems maximise the integrity of standby battery installations, whilst optimising the life and availability of back up batteries.  They are available with Serial and Ethernet Communications options.

The No-Break ™ system is the ideal solution for:

  • Critical systems of 100W to 250W (and above using parallel operation)
  • Applications requiring continuous on-line monitoring of battery and charger status
  • Providing cost-effective management of your battery system investment

Other features include:

  • Ability to view power supply data remotely
  • Automatic or manually initiated battery condition testing to ensure availability of standby power
  • The battery condition test feature of the No-Break ™ DC system determines the condition of the back-up batteries and will provide an early warning of potential failure. This gives plant operators enough warning to replace the faulty batteries before they are required, like in the event of a mains power failure. Battery condition tests are mandatory on some fire alarm systems and are now commonly specified by consultants for critical industrial systems.


  • Security – Access Control
  • Industrial Processes Switching Protection
  • Radio Repeaters – Remote Sites
  • WiFi Broadband Transmitters


  • Separate outputs for load and battery.
  • Battery detection—regular battery presence and battery circuit integrity checks.
  • Battery deep discharge protection.
  • Power loss & battery system alarms
  • No transition switching to backup battery
  • Rugged design and construction for long life and challenging environments


  • American Input Voltage 110 VAC ( 88 – 135 VAC)
  • Communication Port ( RS232 ASCII – SR485 – MODBUS RTU – SNMP, webpages)
  • Digital Input/Outputs: Customizable 3 digital inputs & 1 digital output.
  • Battery Condition Test: Option auto test enabled on start-up
  • Mounting: DIN rail, Rack Mount 19″ with V/I meter available, Wall mount
  • N+1 redundancy
  • Boost Charger
  • Conformal Coating

SR100Hi - DC UPS - Power Supply Battery Charger 100 W remote sites


DC  Output
 Model Output (V) PSU Rated  (A) Charge Limit (A)* Recomm. Load  (A) Peak load on power fail (A)
SR100Hi12 13.8 7.5 7.5 6 11
SR100Hi24 27.6 3.7 3.7 3 5.5
SR100Hi30 34.5 2.9 2.9 2.3 4.3
SR100Hi36 41.4 2.4 2.4 1.9 3.6
SR100Hi48 55.2 1.9 1.9 1.5 2.8


Output power 100W
Input Voltage 180V – 264VAC 45-65Hz
Output Voltages 12V, 24V, 30V, 36V, 48 VDC
Voltage Adj. Range 85% – 105% of Vout
Frequency 45-65Hz
Overcurrent protection Constant current limit under overload and short circuit conditions
Isolation Input – earth – 2.5KVdc
Output – earth – 500Vdc
Efficiency > 85%
Operating temperature -20  to 50 °C ambient at full load
Humidity 0 – 95% relative humidity non – condensing
Cooling Natural convection


Optional Input Voltage 88 – 132 VAC
Communication Port RS232 (ASCII)
Modbus RTU
SNMP, Webpages
Digital Inputs/Outputs Customizable 3 Digital Inputs and 1 Digital Output
Battery Condition Test (BCT) Option auto test enabled on start-up
Mounting DIN Rail
19”Rack Mount. Optional V/I meter for subrack: SR-Meter
N+1 Redundancy Using 2 chargers each with its own battery.
Boost Charger Customizable feature on request.

Modbus & SNMP Downloads

SR Series – Comms Downloads


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