What is the rated current and bandwidth?

Rated 20 A AC/DC with DC to 2 MHz amplitude bandwidth.

Which instruments can power and read the CT6841A?

Hioki PW8001, PW6001, PW3390 power analyzers and sensor units CT9555/CT9556/CT9557 or U8977. Use with Memory HiCorders via the appropriate unit/cable.

What is the output and conductor capacity?

It outputs 100 mV/A and clamps conductors up to Ø20 mm (0.79 in).

Can it handle high temperatures and noise?

Yes—operating range is −40…+85 °C and CMRR is ≥140 dB (DC–1 kHz), graded down to 80 dB at 100 kHz–1 MHz.

What’s included in the box?

CT6841A probe, carrying case, 6× mark bands and an instruction manual.

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Hioki CT6841A AC/DC Current Probe – 20 A, DC to 2 MHz, 100 mV/A

Name: Hioki CT6841A AC/DC Current Probe
Brand: Hioki
SKU: 111362

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Hioki CT6841A High-precision AC/DC current probe with 2 MHz bandwidth and 20 A capacity. Ideal for EV testing, power electronics, and high-speed measurements.

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In-stock items are delivered within 2 business days.
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For out-of-stock items, delivery may take 2 to 4 business weeks.

SKU: 111362 Categories: Current Accessories, Electrical

Brand:Hioki

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Estimated Delivery: 2–4 business weeks

Description

Hioki CT6841A – High-Precision AC/DC Current Probe

The Hioki CT6841A is a high-performance clamp-type current sensor designed for accurate AC and DC measurements up to 20 A, with a wide frequency bandwidth from DC to 2 MHz. Engineered for reliability in extreme temperature conditions, this probe is ideal for use in electric vehicle (EV) development, power electronics, renewable energy systems, and industrial testing environments.

Hioki CT6841A Current Probe Key Features:

Capture fast transients: DC–2 MHz amplitude bandwidth for wide-band power analysis.
High precision, low drift: 0.2% (DC) amplitude accuracy and typ. 20 ppm linearity.
Clean signals in noisy cabinets: CMRR ≥140 dB (DC–1 kHz), graded to 80 dB @ 100 kHz–1 MHz.
Works across systems: Power via PW8001/PW6001/PW3390 or CT9555/CT9556/CT9557/U8977 sensor units; 3 m cable for flexible routing.
Field-ready: One-hand clamp, robust lock, −40…+85 °C operation, Ø20 mm conductor.

Contents of the Hioki CT6841A Current Probe box

CT6841A probe, carrying case, markup bands ×6, instruction manual

Specifications

Parameter	Specification
Rated Current	20 A AC/DC
Frequency Bandwidth	DC to 2 MHz
Diameter of Measurable Conductors	Max. φ 20 mm (0.79 in.)
Max. Allowable Input	±60 A peak (within 20 ms at ≤40°C / 104°F)
Output Voltage	100 mV/A
Output Resistance	50 Ω ± 10 Ω
Accuracy (Amplitude)	DC: ±(0.2% of reading + 0.05% of full scale) DC < f ≤ 100 Hz: ±(0.2% + 0.01%)
Linearity	±20 ppm Typical
Common-Mode Voltage Rejection Ratio (CMRR)	DC to 1 kHz: ≥ 140 dB 1 kHz to 10 kHz: ≥ 125 dB 10 kHz to 100 kHz: ≥ 100 dB 100 kHz to 1 MHz: ≥ 80 dB
Automatic Phase Correction	Yes (when connected to PW8001)
Operating Temperature / Humidity	-40°C to +85°C (-40°F to +185°F), ≤ 80% RH
Withstand Voltage	AC 4260 V
Power Supply	Via PW8001, PW6001, PW3390, CT9555, CT9556, CT9557, or U8977
Max. Rated Power	5 VA or less (at 20 A / 55 Hz with ±12 V supply)
Dimensions (W × H × D)	Approx. 153 × 67 × 25 mm (6.02 × 2.64 × 0.98 in.)
Mass	Approx. 370 g (13.1 oz.)
Cable Length	Approx. 3 m (9.84 ft.)
Included Accessories	Markup bands ×6, Carrying Case, Instruction Manual