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DC Current Transducers – Split Core / Bus Bar – DT-BB Series – NK Technologies


DT-BB DC Current Transducers feature an innovative design that allows a split-core transducer to be installed over existing bus bars or wire. These transducers are rated to measure DC current working voltage to 1500 VDC. The power supply and output signal wires are connected to the sensor with a terminal block, which plugs into the header on the top of the sensor. Four ranges are available from 0–100 to 0–400 amps; three output types: unipolar, bipolar and bidirectional; and three industry-standard outputs: 4–20 mA, 0–5 and 0–10 VDC. The Innovative design puts the current sensing components in one housing with the signal conditioning, reducing installation time and improving both accuracy and safety.

  • Fits over bus bar or wire
  • Ranges up to 400A
  • 5V, 10V or 4-20mA output
  • 24V AC or DC powered
  • 1500V working voltage
  • Bus bar, panel or DIN rail mount


  • 4–20 mA unipolar or 4–12–20 mA bipolar output
  • 0–5/10 VDC unipolar or 0–2.5–5 VDC or 0–5–10 VDC bipolar output
  • +/-5 or +/-10 VDC bidirectional output also available
  • Externally Powered: Low voltage 24 VAC/DC is safe and readily available
  • Split-Core Case: Sensing window provides ample space for bus bar (0.33″x1.33″), single or multiple conductors (up to 1″ Dia)
  • DIN-Rail or Panel Mount: Attach to a bus assembly, snap onto DIN rail (using available adapters) or attach with screws to a panel for secure mounting
DC Current Transducers Specs

Catalog Page 099d         DT-BB-Data-Sheet

DT-BB-Uni-Bi-Polar       DT-BD-BB-Bidirectional

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Output Type
4-20mA output is not available for Bidirectional output type
Power Supply
Output Polarity
Case Style
Aperture Size: Cable (1") or Bus Bar (0.33" x 1.33")
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