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AC Flexible Clamp Sensors in 3 Diameter Sizes



Hioki AC Flexible current sensor are best-in-class devices for use with power meters, PQAs and Memory HiCorders. The CT9667 series are flexible Rogowski type AC sensors comprising of 3 different models in various loop diameter sizes from 100 to 254 mm. The 100mm and 180mm diameter sensor also feature extra thin cables for easier looping around complicated wiring. All 3 sensors 500A/5000A ranges, making them ideal for measuring large load current.

CT9667-01 φ100 mm (0.30 in)
CT9667-02 φ180 mm (7.09 in)
CT9667-03 φ254 mm (10.00 in)

Note: These current sensors may also be used with HIOKI power quality analyzers, power meters or Memory HiCorders.


Key Features

• Thinner cables are easy to use in confined spaces and with complicated wiring

• Shaped so that it’s easy to route through complex wiring

• Easily supports large current measurements up to 5000 A

• Wide 10 Hz to 20 kHz band with excellent frequency characteristics

• Choose from three conductor diameter sizes

• Combine with Hioki power meters or Memory HiCorders

■ Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year) AC FLEXIBLE CURRENT SENSOR

CT9667-01 CT9667-02 CT9667-03
Rated input current 5000 A AC/ 500 A AC
Max. allowable input 10000 A continuous (45 to 66 Hz, requires derating at frequency)
Bandwidth 10 Hz to 20 kHz (±3dB)
Amplitude and phase accuracy ±2 % rdg. ±0.3 % f.s. (45 to 66 Hz, at center of flexible loop)
Phase: ±1 deg (45 to 66 Hz)
Output voltage 500 mV AC/f.s. (0.1 mV AC/A) at 5000 A range
500 mV AC/f.s. (1 mV AC/A) at 500 A range
Max. rated voltage to earth 1000 V AC (CAT III), 600 V AC (CAT IV)
Core diameter φ 100 mm (3.94 in) φ 180 mm (7.09 in) φ 254 mm (10.00 in)
Operating temperature -25 °C to +65 °C
(-13 °F to 149 °F)
-25 °C to +65 °C
(-13 °F to 149 °F)
-10 °C to +50 °C
(14 °F to 122 °F)
Power supply LR6 (AA) alkaline batteries ×2, Continuous use : 7 days (rated power 35 mVA), or AC adapter 9445-02/-03 (rated power 0.2 VA), or External power supply 5 to 15 V DC (rated power 0.2 VA)
Dust and water resistance Flexible loop only: IP54 N/A
Dimensions and mass Flexible loop cable diameter: φ7.4 mm (0.29 in),
Cable length: Between flexible loop and battery box: 2 m (6.56 ft),
Output cable: 1 m (3.28 ft), Battery box: 35 mm (1.38 in)W × 120.5 mm (4.74 in)H × 34 mm (1.34 in)D, 280 g (9.9 oz)
Flexible loop cable diameter: φ13 mm (0.51 in), Cable length: Between flexible loop and battery box: 2 m (6.56 ft), Output cable: 1 m (3.28 ft)
Battery box: 35 mm (1.38 in)W × 120.5 mm (4.74 in)H × 34 mm (1.34 in)D, 470 g (16.6 oz)
Accessories LR6 (AA) alkaline batteries ×2, Instruction manual ×1


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Contact ACA TMetrix Inc.


3585 Laird Road, Unit 15 & 16, Mississauga ON L5L 5Z8

Phone: 1-800-665-7301

Fax: 1-905-890-1959

Email: info@tmetrix.com

About ACA TMetrix Inc.

ACA TMetrix Inc. is a leading supplier of test instruments and design tools in Canada. For over 50 years we have provided services and support for products that are manufactured by the world's leading instrument suppliers.

TMetrix Ltd. is Part of the ACA Group of Companies. Allan Crawford Associates (ACA), is one of Canada's largest distributors of electronic components, test equipment, and scientific solutions.

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