PSU DC+ | power supply 12-32VDC with 900mAh backup

Power supply unit with backup battery for mains operation

The compact power supply unit is compatible with all devices in the myDatalogEASY IoT family. This power supply unit is required for direct connection to an external 12…32VDC supply. The built-in backup battery enables the bridging of short-term power failures and, if necessary, the sending of a failure message.

Product features

  • Compact design
  • External power supply / mains operation with backup battery
  • Backup battery for bridging short-term power failures
  • Sending a failure message with backup battery possible
  • In control cabinets in combination with industrial power supplies
  • Integrated overvoltage protection for VIN

Compatible devices

The Power Supply Unit PSU DC+ is compatible with:

External supply

The integrated circuit for protection against interference and fluctuations in the supply voltage makes this power supply unit particularly suitable for use in control cabinets and industrial environments. The backup battery bridges short-term power failures. In addition, an alarm can be triggered in the event of a supply interruption.

Product configurator

With the help of the runtime calculator, you can estimate the autonomous runtime of the application as well as the costs incurred. The actual costs and energy consumption depend on the measurement conditions, such as the reception quality and ambient temperature. Detailed information on the tariffs can be found here.

Technical data

Power Supply Unit PSU DC+ with direct supply
Item no. 300798
Type DC protection circuit
Function DC protection circuit with power failure buffer
Chemistry Li-Ion
Rechargeable Yes
Capacity 900 mAh
3,33 Wh
Input voltage 12 ... 32 VDC
Nominal voltage 3,7 V
Charging voltage (max.) 4,2 V
Discharge current (max.) 900 mA
Operating temperature -20°C ... +60°C
Charging temperature 0°C ... 40°C
Storage temperature 0°C ... 35°C
UN number 3480
Weight 120 g
Name Hardware Version Document Category Revision
Fact Sheet PSU DC+ current Fact Sheet 03
3D View PSU DC from Hw 1.0 3D View Hw 1.0
General usage instructions Batteries and rechargeable batteries current Sales Documents
EU Declaration of ConformityPSU Charger from Hw 1.1 EU Declaration of Conformity 22.09.2023
Guideline for transport Batteries and rechargeable batteries current Sales Documents
Safety data sheet for rechargeable li-ion / li-po cells current Data Sheet 01
Safety data sheet for primary LiSOCl2 cells current Data Sheet 01

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Stefan Pfeffer

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