AC Current Transformer to Meet Applications Exceeding 1000A AC
Hioki clamp sensors are best-in-class measuring devices incorporating
Hioki’s expertise in current sensing technology. The 9290-10 is
a clamp-on adapter rated for 1500A AC, and features a 10:1 CT ratio.
In addition to the large clamp diameter, broad frequency characteristics
and good phase characteristics, the CT reliably provides Hioki clamp on
power meters with expanded range and large current measurements.

Model No. (Order Code)



Key Features

• Output large currents of 1,000 A AC continuously (1,500 A for 5 minutes) at a CT ratio of 10:1
• Expand the measurement range of normal clamp ammeters
• Excellent phase characteristics that can be used to expand power meter measurement ranges

Basic specifications (Accuracy guaranteed for 1 year)
Note: Cannot use with Model CT 9279

Rated primary currentAC 1000 A continued (Maximum 1500 A for 5 minutes or shorter)
Rated secondary currentAC 100 A (10 : 1 CT ratio)
Amplitude accuracy±1.5% rdg.
Phase accuracy±1.0 ° or less
Frequency characteristicAmplitude: 20 Hz to 5 kHz: ±2.0 % rdg. (deviation from accuracy)
Phase: 20 Hz to 5 kHz: ±1.0 ° or less (deviation from accuracy)
Max. rated voltage to earth600 V AC rms (insulated wire)
Core jaw dia.φ 55 mm (2.17 in) or 80 mm (3.15 in) × 20 mm (0.79 in) busbar
Dimensions and mass99.5 mm (3.92 in) W × 188 mm (7.40 in) H × 42 mm (1.65 in) D, 580 g (20.5 oz), cord length 3 m (9.84 ft)
AccessoriesInstruction manual ×1, Mark band ×6

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