Product enquiry for 9657-10 CLAMP ON LEAK SENSOR

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Hioki current sensors are best-in-class devices for accurately capturing a wide range of current levels. The 9657-10 is a voltage output clamp sensor for measuring leak current. The high-permeability magnetic material of the sensor’s core and magnetic shield enables high-precision measurement of very weak currents.

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

Rated primary current AC 10 A (for leak current measurement, 50/60 Hz)
Max. allowable input (45-66 Hz) Max. 30 A of continuous input
Rated output current AC 100 mV/A
Amplitude accuracy (45-66 Hz) ±1.0 % rdg. ±0.05 % f.s.
Phase accuracy ±3 ° (at 50 Hz or 60 Hz)
Frequency characteristics 40 Hz to 5 kHz: ± 3%
(Add to amplitude accuracy)
Max. rated voltage to earth AC 300 V rms (Insulated conductor, CAT III)
Core diameter φ 40 mm (1.57 in)
Dimensions and mass 74 mm (2.91 in)W × 145 mm (5.71 in)H × 42 mm (1.65 in)D, 380 g (13.4 oz), Cord length: 3 m (9.84 ft)
Accessories Instruction manual ×1

Key Features

• For general purpose leak current testing

• Also supports load current testing

• Check for insulation faults

Application Notes



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