Buffer Power Supply: HPSB 11A12C (9.5-13.8VDC, 11A)

  • Description
  • Specifications


  • Wide range of input voltage: 176÷264 VAC;
  • High efficiency (83%);
  • Output protection against short circuit (SCP), excessive voltage (OVP), overloading (OLP), tampering;
  • Battery charging circuit separated from the main output circuit;
  • Automatic protection against excessive discharge of the battery;
  • Battery charging current 1 A / 4 A (switchable with a jumper);
  • LED indicators.
HPSB 11A12C M1865 buffer power supply has been designed to ensure continuous supply for devices requiring 12 VDC or similar stabilized voltage (9.5…13.8 V). Its modern switch-mode converter shows 83% efficiency and provides stable low-noise DC voltage (the ripple and noise level below 120 mVp-p).
During normal operation, the output voltage is converted by the SMPS from AC power network, and the attached rechargeable battery is maintained in a charged state. In the case of a power network outage, the power is supplied by the rechargeable battery instead. There is a protection against battery deep discharge, which switches off the power supply when the voltage falls below 9.5 V.
The HPSB 11A12C M1865 power supply is sold without a rechargeable battery.
Name HPSB 11A12C
Code M1865
Input voltage 176-264 VAC 50 Hz
Output voltage 9.5-13.8 VDC
Rated power consumption 155 W
Rated efficiency 83%
Max output current (total) 11 A
Battery charging current 1 A or 4 A *
Number of outputs 1
Max output current (external load) 10 A or 7 A *
Backup rechargeable battery (not incl.) 17 Ah max.
Short-circuit protection automatic
Overload protection automatic
Overvoltage protection automatic
Operating temperature -10°C...40°C
Dimensions (WxHxD) 285x297x 88 mm
Weight 2.5 kg
Remarks Metal housing