HIOKI Releases "AC/DC Current Probe CT6847A" for High-Current Measurement in Large Electric Vehicles
HIOKI has launched the "AC/DC Current Probe CT6847A," a clamp-on current sensor designed for high-precision power measurement. This new product supports the demand for high-current measurement in certification tests for large electric commercial vehicles such as buses, trucks, and construction machinery, capable of measuring up to 2000 A DC and 1400 A AC rms. It offers high accuracy and stable measurement across a wide operating temperature range while maintaining a conventional sensor size for easy installation in confined vehicle spaces.
📋 Article Processing Timeline
- 📰 Published: April 9, 2026 at 22:00
- 🔍 Collected: April 9, 2026 at 13:30
- 🤖 AI Analyzed: April 18, 2026 at 13:14 (215h 43m after Collected)
HIOKI (HIOKI E.E. CORPORATION: Ueda City, Nagano Prefecture, President: Takahiro Okazawa) has released the "AC/DC Current Probe CT6847A," a clamp-on current sensor that supports high-precision power measurement. This product was developed to meet the demand for high-current measurement in certification tests for large electric commercial vehicles, including buses, trucks, and construction machinery.
■ Background of Development
Automotive certification tests require measurement of vehicle power consumption, and HIOKI's power measuring instruments (power analyzers) and clamp-on current sensors are globally adopted as measuring instruments that meet strict test accuracy requirements. Currently, electric vehicles (BEVs and HEVs) are becoming increasingly common in large vehicles such as trucks and construction machinery, and currents exceeding 1000 A can flow instantaneously during operation.
Development sites, where installation on finished vehicles is a prerequisite, require current sensors that can measure large currents while maintaining existing shapes and sizes. HIOKI has a track record of selling custom-spec current sensors to customers who requested expanded measurement ranges.
Against this background, a new model capable of measuring up to 2000 A DC has been officially added to the clamp-on current sensor lineup to respond to the recent trend of higher EV output.
■ Product Overview
The CT6847A is a clamp-on current sensor that supports measurement of 2000 A DC and 1400 A AC rms. Like conventional models, it features a wide operating temperature range and guarantees high measurement accuracy when combined with HIOKI's power measuring instruments. Additionally, considering installation in narrow vehicle interiors where wiring is dense, the sensor's shape maintains the conventional size.
■ Main Features
・Accurate measurement of large currents
Rated current DC 2000 A, AC 1400 A rms
・High accuracy suitable for vehicle certification tests
Basic accuracy ±0.15% reading ±0.01% full scale
・Stable measurement even with changes in ambient temperature
Operating temperature range -40℃ to +85℃
・Can be installed in narrow vehicle interiors
Clamp aperture Φ50mm
■ Main Applications
・Power consumption measurement for EV sports cars and EV trucks
・Design verification of high-output powertrains for electric construction machinery and electric aircraft
・Current measurement for high-power UPS and power conditioners
■ Product Lineup and Price
・AC/DC Current Probe CT6847A
Used by connecting to compatible measuring instruments such as HIOKI's power measuring instruments and Memory HiCorders. It can also be used in combination with other measuring instruments using a current sensor power supply.