KNX POWER SUPPLY, 1280 mA

rail mounting device, 6 rail units
ETS product family: System components
Product type: Power supply

Intended use

  • Supplying KNX devices with bus voltage
  • Supplying devices with DC voltage
  • Mounting on DIN rail according to EN 60715 in distribution boxes

21280 REG

Product characteristics

  • Output with integrated choke for supplying KNX bus lines
  • Output DC 30 V for supplying additional devices
  • Nominal current can be subdivided to outputs as desired
  • Reset button
  • Short-circuit proof
  • Overvoltage proof
  • No-load protection
  • Suitable for operation in systems with emergency power supply
  • Floating signal contact for operating and diagnostic message

Technical data

Rated voltage: AC 200 … 240 V ~
Mains frequency: 50/60 Hz
Power loss (max. load on all outputs): max. 1.5 W
Efficiency: approx. 76 %
Rated voltage: DC 240 … 250 V
KNX
    KNX medium: TP 256
    Bus output voltage: DC 28 … 31 V SELV
    Output current: 160 mA (all outputs)
    Short-circuit current: max. 1 A
    Parallel operation with identical power supply: yes
Signal output
    Switching voltage AC: AC 12 … 230 V ~
    Switching voltage DC: DC 2 … 30 V
    Switching current: 5 mA … 2 A
Ambient temperature: −5 … +45 °C
Storage/transport temperature: −25 … +75 °C
Relative humidity: max. 93 % (no condensation)
Mounting width: 72 mm (4 rail units)
Connection mode: screw terminals
    stranded with ferrule: 1 x 0.5 … 2.5 mm²

Product documentation

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Product data sheet

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Database ETS4 + ETS5

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EC Declaration of Conformity

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Operating instructions

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SKU: 21280 REG Categories: ,