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UB40.241 – DC-UPS control unit

24V, 40A for battery sizes from 12Ah to 200Ah

Technical data

  • DC Input voltage: DC 24V (± 25%)
  • Int. current consumption (incl. charging current): 3.2 / 6.2A
  • Nominal voltage: 24Vdc
  • Output current: 40A
  • Output power: 960W
  • Derating: 24W/°C for +50 to +70°C
  • Storage element: External lead acid battery
  • Allowed battery size: 12Ah – 200Ah
  • Temperature tracking of the end-of-charge voltage: automatically with temp. sensor
  • Dimensions (WxHxD): 46mm x 124mm x 127mm
  • Weight per unit (excl. packaging): 530g
  • Mounting method: DIN rail
  • Operating temperature range: -25°C to 70°C
  • Connection method: Screw terminals


  • 1-Battery-Concept – Each 12V battery is charged and monitored separately for longest battery life, matching of batteries not necessary
  • Output is decoupled from the input to separate load circuits into buffered and non-buffered sections
  • Allows VRLA battery sizes between 12Ah and 200Ah; “Battery Size” selector for various battery sizes
  • 50% Extra output power for up to 5s
  • Superior battery management for longest battery life
  • Comprehensive diagnostic and monitoring functions
  • “Replace Battery” signal included
  • “Battery-Low Prewarning” signal included
  • Selectable buffer time limiter
  • Temperature controlled battery charging


Highest performance. Numerous variants. Fully featured.

The DIMENSION family unites all the technological achievements PULS has made in the past 35 years. For our customers this means the highest efficiency, longest service life and – of course – the smallest dimensions in the market.

We are continously advancing the DIMENSION family with one goal in mind: To give you reliable and efficient power supplies for your applications. Install them in seconds and don’t worry about them for years.

The DIMENSION family includes the widest range of 12 to 48V DIN rail power supplies. The products are classified in three series: Q , C and X with 1-, 2- or 3-phase input and a power of 80 to 960W.

Each series assembles various power supply models. Helpful features like DC-OK relay contact, remote shut-down, spring clamps or DC wide-range input and important approvals are available for every series. This makes the DIMENSION family valuable for every high demanding application