Description
CT6872 AC/DC Current Sensor for High-Accuracy Measurement
The CT6872 AC/DC Current Sensor is a low-current, high-performance solution developed for precise measurement of AC and DC currents in advanced power electronics. With a rated current of 50 A and a wide frequency bandwidth extending from DC to 10 MHz, this sensor is well suited for applications that demand both accuracy and fast signal response.
Power Electronics and EV Testing
Modern EV systems, wireless charging circuits, and inverter-driven equipment rely on high-frequency switching technologies. The Sensor captures these fast-changing current waveforms with excellent fidelity, making it an ideal choice for research and development, quality evaluation, and production testing. Its wide bandwidth enables accurate measurement of harmonic-rich and low power factor signals that are difficult to capture with conventional sensors.
Zero Flux Technology
At the core of the CT6872 AC/DC Current Sensor is Hioki’s advanced zero flux method. This technology combines flux gate detection for DC and low-frequency currents with CT detection for high-frequency components. The result is outstanding linearity, minimal offset drift, and excellent temperature stability. These characteristics make the sensor especially valuable for long-duration measurements and efficiency analysis using power analyzers and power meters.
Analyzer Integration
When paired with compatible Hioki Power Analyzers such as the PW8001, the CT6872 AC/DC Current Sensor automatically communicates essential sensor data through its built-in memory. Rated current, phase correction values, model information, and serial numbers are instantly recognized, eliminating manual setup errors and improving confidence in measurement results. Automatic phase correction further enhances accuracy during high-frequency and low power factor measurements.
Harsh Environments
Designed for both laboratory and field use, the CT6872 AC/DC Current Sensor operates reliably across a wide temperature range from -40°C to 85°C. This durability allows consistent performance in automotive testing environments, renewable energy installations, and industrial production lines where environmental conditions can vary significantly.
Technical Specifications Table
| Specification | Details |
| Product Name | CT6872 AC/DC Current Sensor |
| Rated Current | 50 A |
| Frequency Bandwidth | DC to 10 MHz |
| Measurement Method | Zero flux method with flux gate detection |
| Accuracy Support | Guaranteed combined accuracy with Hioki analyzers |
| Operating Temperature | -40°C to 85°C |
| Compatible Instruments | Hioki Power Analyzers, Memory HiCorders, oscilloscopes, DMMs |
| Required Input Impedance | 1 MΩ or higher |
| Cable Length Options | 3 m (CT6872), 10 m (CT6872-01) |
| Typical Applications | EV systems, wireless charging, inverters, PV, fuel cells |
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