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WSPF-DBZ Distributor (Current Loop Supply)

The plug-in distributor (Current loop supply) provides isolated signal output, which can be used in combination with a transmitter.
It supplies DC power to a field transmitter, and converts 4-20mA signal transmitted to the suitable signal for input of monitoring and control equipment.


  • Fine Zero & span adjustment by 15 turn trimmer
  • Zero & span adjustment ±10% full scale
  • Safe design by dielectric strength of 3000Vac
  • 5 years warranty, long life
  • CE approved
  • Can be used as Isolator

Common Specifications

Input Signal : 4-20mAdc (Transmitter signal)
  (Input resistance 250Ω)
Accuracy : ±0.1% FS (at 23°C)
Response time : Approx. 25ms ( 0 to 90%)
Allowable load : Current output
    15V or less of voltage drop between output
  Voltage output
    Load current 5mA or less
      *1μA or less if the output is less than 1V FS
Zero & span adjustment : ±10% FS (15 turn trimmer)
Transmitter power supply : Model code [A] : 24Vdc ±1V, max approx. 25mA
  Model code [C] : 30Vdc ±1V, max approx. 22mA
Operating temperature : -5 to +55°C
Operating relative humidity : 90% or less (Non-condensing)
Temperature coefficient : ±0.015% FS of span per °C
Isolation : Between input, output, and power supply
Insulation Resistance : 100MΩ or more with 500Vdc megger
  Between input, output, and power supply terminal
Dielectric Strength : 3000Vac for 1 minute between power supply and
  input/output terminal,
  2000Vac for 1 minute between input and output terminal
Power Consumption : 24V Transmitter power supply: Approx. 5.2VA (AC), Approx. 90mA (DC)
  30V Transmitter power supply: Approx. 5.4VA (AC), Approx. 95mA (DC)
Power supply variation : ±0.1% FS (within the range of rated voltage)
Dimensions : 84(H) X 29.5(W) X 106.5(D)mm
Weight : Approx. 150g
Structure : Plug-in (Body part and socket part)
Connection : M3 SEMS screw part of the base socket (Tightening torque 0.6N·m)
Mounting : DIN rail or wall surface
Case color and material : Ivory, ABS resin, flame retardant grade UL94V-0
EMC directive : EN61326-1, EN61010-1, EN50581
  Installation category : II, Pollution degree : 2
Rated altitude : 2000m or less

Download Data Sheet
Download Data Sheet