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High Performance Current Sensing for Automation Application
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Current Transducers

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AC Current Transducer

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AC Current Transducer Application Notes
Monitoring AC Current Powering Heating Elements
Application Note - Pump Monitoring and Protection
AC Current Transducer Specific Solutions to Your Industry
AC Current Transducer Supplemental Applications

ATH Series

AC Current Transducer with Time Integration
Agency Listings, Certifications & International Registrations

ATH Series (patented) AC Current Transducers are the latest innovation from NK Technologies. Monitoring the current or power controlled by silicon-controlled rectifiers (SCRs) can be a challenge, especially the current used by heaters. When used to monitor zero-crossing (burst) fired SCRs, the ATH AC Current Transducer will provide an output signal directly proportional to the RMS amperage. Zero-crossing fired controls allow current to flow to the circuit for as short of a time period as one cycle, and off for several cycles. Most current sensors will not work well when there is no current present. This capability is important in case a heating element fails but the process continues operating, which could result in scrapped material.

Industry Standard Outputs
  • 4–20 mA, 0–5 or 0–10 VDC
  • Compatible with most automation systems
External Powered
  • Split-core models available powered with 24 VAC or DC
  • Solid-core models powered with 24 VAC or DC or 120 VAC
Factory Calibrated
  • No need for zero and span adjustment potentiometers
RMS Output
  • Accurate measurement of sinusoidal, or pulsed current wave shapes
Built-in Mounting Feet
  • Simple, two-screw panel mount or attach with optional DIN rail brackets
Designed for UL, CUL and CE Approval
  • Accepted worldwide