External power supply DB2


Approval: VdS

The external power supply unit DB-2, built into a powder-coated metal housing, offers space for up to two 12 V / 45 Ah batteries. A connection to the fire alarm control panels IQ8Control and FlexES Control can be made directly via the optional adapter board (part no. HLSPS-ADPTR) with an esserbus® alarm tranponder (part no. 808623). Alternatively, a relay output with floating changeover contact is available for the transmission of faults (mains, battery and collective faults as well as earth fault). DB-2 offers external LED display for operation and collective fault in the lockable front door, internal LEDs for detailed detection of emergency power operation, individual monitoring of battery failure, ground fault, deep battery discharge as well as system errors and mains failure. The settings for battery capacities and combinations are made via DIP switches on the base board of the DB-2.

  • Modular structure for stand-alone or esserbus operation
  • 2 inputs for monitoring external facilities
  • Selection of the batteries to be monitored using DIP switches
  • Optional connection in the esserbus via adapter board with alarm transponder
  • Simple status analysis via LED displays on the base board
Rated voltage
230 V AC
Rated frequency
50 Hz ... 60 Hz
Output voltage 20 ... 29 V DC
Output current max. 4,0 A
Battery capacity
7 Ah,12 Ah,17 Ah, 26 Ah,38 Ah,45 Ah
Contact load relay
1A / 125 V AC, 60 V DC
Ambient temperature
-5 °C ... 40 °C
Type of protection IP30
Color grey, similar to RAL 7035
Weight approx. 9 kg (without batteries)
Dimensions W: 417 mm H: 490 mm D: 206 mm
Declaration of Performance
  • 808623 esserbus alarm transponder, 4 IN/2 OUT with isolator
  • 018011 Battery 12 V DC/12 Ah capacity
  • 018006 Battery 12 V DC / 24 Ah capacity
  • 018009 Battery 12 V DC/38 Ah capacity

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Data sheet_Power Supply HLSPS-DB2-Fire_EN_Version: 07.2020 414 KB