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ZM-PZ

 

The power supplies meet the requirements of the EN54-4 + A2 standard, thanks to which they can be used as power devices in fire alarm and fire signalization systems, e.g. in control panels of fire protection devices.

The power supplies have an additional packet that allows for direct supervision of rechargeable battery banks. The power supply equipped in such the way practically fulfills a role of a telecom power system or another voltage source (UPS DC) ensuring self-servicing of the connected battery.

In standard, the power supplies are equipped with the LED and relay signalization and in the so-called low voltage disconnect device (LVDD) protecting the connected batteries from excessive discharge. The temperature sensor allows for adjusting the output voltage (floating voltage) depending on the ambient temperature of the batteries. The use of these systems makes it possible to maintain the proper operating parameters of the connected batteries and extends their life.

Thanks to the use of a special, programmable battery charging current limitation circuit, the power supply can cooperate with batteries of various capacities, ensuring at the same time the appropriate current and charging time of the connected batteries.

  • single phase 230Vac or 220Vdc input voltage
  • optical signalization of correct operation and current limitation
  • relay indication of correct operation of power supply
  • continuous control of presence and condition of batteries
    • o low voltage level indication on battery terminals
    • o signalization of increase of internal resistance of battery circuit above a certain value - according to EN54-4 + A2
  • separate indication of faulty states of backup power source (relays + LED)
  • separate indication of emergency states of the main power source
  • separate output connectors for batteries
  • floating operation with temperature compensation of charging voltage
  • operation in automatic charging mode
  • optical signalization of charging, battery operation and low battery status
  • low voltage disconnect device (LVDD)
  • battery circuit fuse
  • battery charging current switch
  • floating voltage operation selection switch (V/cell)
  • input of external fault signal
  • possibility of selecting terminals on front panel
  • many product versions for various mounting possibilities
  Name Nominal output voltage Output current Additional data
ZM24V24A-600PZ-00
24V
24A
ZM24V12A-300PZ-000
24V
12A
ZM24V6A-151PZ-00
24V
6A

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