Flexible 600 A/6000 A AC Current Sensors in 3 Sizes
OVERVIEW


Hioki clamp sensors are best-in-class measuring devices incorporating Hioki’s expertise in current sensing technology. The CT7040 Series compromise of 600A/6000A AC flexible current sensors in three different loop sizes that pair with the detachable Display Unit to measure large currents in crowded wiring and confined spaces.
CAT IV 600 V, CAT III 1000 V
Key Features
- Thinner cables are easier to use in confined spaces and with complicated wiring
- Supports large current measurements up to 6000 A
- Wide 10 Hz to 50 kHz band with excellent frequency characteristics
- Choose from three conductor diameter sizes
- Ideal for site inspections by using detachable Display Unit
- Four output formats to output data to loggers or other devices (via Display Unit): WAVE, RMS, PEAK, Hz
CT7046 | AC Flexible Current Sensor, 6000 A, φ254 mm (10.00 in) |
CT7045 | AC Flexible Current Sensor, 6000 A, φ180 mm (7.09 in) |
CT7044 | AC Flexible Current Sensor, 6000 A, φ100 mm (3.94 in) |
Note: CT7040 series cannot be used alone. Use with the Display Unit CM7290, CM7291 to connect with Data Loggers and Memory HiCorders. When used in combination with CM7290 or CM7291, the frequency band of current display and waveform output becomes narrow. CT7046, CT7045, and CT7044 are a flexible current sensor for measuring large currents. It is not suitable for measuring minute current such as leakage current.
FEATURES
A comment of Good Design Award 2016
“I was impressed with the high level of functionality combined with a compact design and a dustproof and waterproof enclosure as well as the high level of technical skill evident in the integration of multiple types of plastic and two cables. These appealing products also exhibit beautiful finish quality.”
Connect to Recorders, Data loggers, and Oscilloscopes
Must be paired with the Display Unit CM7290 or CM7291 to operate as a standalone unit. Add an output cord to deliver signals to a data logger or Memory HiCorder for the following types of output:
• A DC or AC (up to 5 kHz/10 kHz) current waveform as-is (using WAVE mode for waveform output)
• An analog signal generated by converting the input waveform to a series of RMS values (using RMS mode for RMS output)
• An analog signal generated by detecting the current waveform’s peak value (using PEAK mode for peak output
• An analog waveform generated by detecting the frequency of the current waveform (using FREQ mode for frequency output)

Broad temperature range
A wide operating temperature range of -25°C to 65°C (-13°F to 149°F) lets you use the sensor even in sub-freezing temperatures and on hot summer days.

Transfer data wirelessly using Bluetooth(R) to GENNECT Cross mobile app
Pair with the CM7291 Display Unit to send measurement data to a smartphone or tablet using Bluetooth® wireless technology. Use the GENNECT Cross dedicated app to display and review measured values and waveforms in real time.
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SPECIFICATIONS
Basic specifications
Accuracy guaranteed: 1 year
Waterproof characteristics intended to maintain measurement function; measuring energized parts while instrument is wet will increase risk of electric shock.
¡¡ | CT7046 | CT7045 | CT7044 | |||
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Rated measurement current | 6000 A AC | |||||
Internal Measurement range | 600A AC/ 6000A AC (Range is controlled by main device) | |||||
Max. allowable input | 10000 A continuous (at 6000 A range, 45 to 66 Hz, requires derating ) | |||||
Bandwidth | 10 Hz to 50 kHz (±3dB) (When used in combination with CM7290 or CM7291: 10 Hz to 1 kHz) |
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Amplitude and phase accuracy | ±1.5 % rdg. ±0.25 % f.s. (f.s. is internal range, 45 to 66 Hz) ±1 deg | |||||
Output rate | 1 mV/A (600 A*), 0.1 mV/A (6000 A) *Selectable only when used with CM7290, CM7291, PQ3100 |
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Max. rated voltage to earth | AC 600 V (CAT IV), AC 1000 V (CAT III) | |||||
Loop diameter | φ 254 mm (10.00 in) or less | φ 180 mm (7.09 in) or less | φ 100 mm (3.94 in) or less | |||
Dust and water resistance * | IP54 (when connected to a supported instrument, Do not make measurements when wet.) | |||||
Output connectors | HIOKI PL 14 | |||||
Operating temperature range | -25 °C to 65 °C (-13 °F to 149 °F) | |||||
Dimensions | Flexible loop cable diameter: φ7.4 mm (0.29 in), Cable length: Between flexible loop and battery box: 2.3 m (7.55 ft), Output cable: 20 cm (0.66 ft), Battery box25 mm (0.98 in)W × 72 mm (2.83 in)H × 20 mm (0.79 in)D | |||||
Mass | 186 g (6.6 oz) | 174 g (6.1 oz) | 160 g (5.6 oz) | |||
Included accessories | Instruction manual ×1 |
OPTIONS
Display, Output (1)

DISPLAY UNIT CM7290
• Pair with CT7000 series
• DCA, ACA, (DC+AC)A, frequency
• WAVE, RMS, PEAK, Hz output
Output cord (2)

OUTPUT CORD L9095
Connect to BNC terminal, 1.5 m (4.92 ft) length

OUTPUT CORD L9096
Connect to terminal block, 1.5 m (4.92 ft) length