Hioki CT9667 AC Flexible Current Sensor 5000A — full unit overview showing yellow flexible loop, circuit box, and cables coiled on white background

Hioki CT9667 circuit box close-up showing POWER/OVER LEDs, 5000A/500A range selector switch, OFF position, and 500mV output label

Hioki CT9667 Flexible Clamp On Sensor connector head showing LOCK/UNLOCK mechanism, yellow loop connector, and green-yellow earth lead

Hioki CT9667 sensor head label showing 5000A rating, CAT IV 600V, CAT III 1000V safety categories, CE and KC marks

Hioki CT9667 rear of circuit box showing serial number 140832967, 2014 manufacture date, LR6x2 battery rating, Made in Japan label

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Hioki CT9667 AC Flexible Current Sensor 5000A

Name: Hioki CT9667 AC Flexible Current Sensor 5000A
Brand: Hioki
SKU: 3766 6C03 ER88
Price: 140.25 GBP
Availability: InStock

The Hioki CT9667 is a Rogowski-type AC flexible current sensor delivering non-intrusive measurement of large AC currents up to 5000 A, designed for use with Hioki power meters, PQAs, and Memory HiCorders.

• Dual range — switchable 500 A / 5000 A with 500 mV f.s. output and wide 10 Hz to 20 kHz bandwidth
• Flexible loop wraps around large, irregular, or tightly grouped conductors with ease
• CAT IV 600 V / CAT III 1000 V rated — safe for demanding industrial and utility environments

Manufacturer

Hioki

Model

CT9667

Condition

Used

In stock

SKU

3766 6C03

£140.25

Current Clamps
Electronic T&M

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Hioki CT9667 AC Flexible Current Sensor 5000A

£140.25

Condition: Used

Tested and fully functional. This Hioki CT9667 AC Flexible Current Sensor is manufactured in Japan and shows some cosmetic wear consistent with field use. The range selector switch is set to 500 A and the unit powers via 2× LR6 (AA) batteries or external DC supply.

Included in the sale:
• 1× Hioki CT9667 AC Flexible Current Sensor (with yellow flexible loop, circuit box, and output cable)

Product Overview

Condition: Used

Included in the sale:
• 1× Hioki CT9667 AC Flexible Current Sensor (with yellow flexible loop, circuit box, and output cable)

Manufacturer's Description

Hioki current sensors are best-in-class devices for use with power meters, power quality analysers (PQAs), and Memory HiCorders. The CT9667 series are flexible Rogowski-type AC sensors available in three models with loop diameter sizes from 100 mm to 254 mm. The 100 mm and 180 mm diameter models feature extra-thin cables for easier routing around complex or confined wiring. All three models offer dual 500 A / 5000 A ranges, making them ideal for measuring large load currents in industrial, commercial, and utility applications. The CT9667 features an improved sensor lock mechanism and retains its range setting during power outages compared to its predecessor.

Product: Hioki CT9667 Series — AC Flexible Current Sensor
Models: CT9667-01 | CT9667-02 | CT9667-03
Rated Input Current: 5000 A AC / 500 A AC
Maximum Allowable Input: 10,000 A continuous (45 to 66 Hz; derating required at higher frequencies)
Bandwidth: 10 Hz to 20 kHz (±3 dB)
Amplitude Accuracy: ±2% rdg. ±0.3% f.s. (45 to 66 Hz, at centre of flexible loop)
Phase Accuracy: ±1° (45 to 66 Hz)
Output Voltage (5000 A range): 500 mV AC f.s. (0.1 mV AC/A)
Output Voltage (500 A range): 500 mV AC f.s. (1 mV AC/A)
Output Terminal: BNC
Maximum Rated Voltage to Earth: 1000 V AC (CAT III) / 600 V AC (CAT IV)
Core Diameter — CT9667-01: ø100 mm (3.94 in)
Core Diameter — CT9667-02: ø180 mm (7.09 in)
Core Diameter — CT9667-03: ø254 mm (10.00 in)
Operating Temperature (CT9667-01/-02): -25°C to +65°C (-13°F to +149°F)
Operating Temperature (CT9667-03): -10°C to +50°C (+14°F to +122°F)
Dust & Water Resistance: IP54 (flexible loop only; CT9667-01 and CT9667-02)
Power Supply: 2× LR6 (AA) alkaline batteries (approx. 7 days continuous); AC adapter 9445-02/-03; or external 5–15 V DC (rated power 0.2 VA)
Battery Box Dimensions: 35 × 120.5 × 34 mm
Accuracy Guaranteed: 1 year
Origin: Made in Japan

Resources

Product brochure — AC Flexible Current Sensor CT9667 technical specifications and features: Download PDF

Instruction manual — CT9667-01, CT9667-02, CT9667-03 (English, latest edition): Download PDF

Hioki Technical Notes — CT9667 and CT7044/45/46 flexible current sensor technical deep-dive: Download PDF

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