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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.

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.” 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

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

CT7046 CT7045 CT7044
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)
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
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
Dustproof, waterproof IP54* (When sensor is connected to a compatible instrument.) * Do not use 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)
Accessories Instruction manual ×1

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Additional information