Delivering High Accuracy Performance Over a
Measurement Band 40 Times Broader than Legacy
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Hioki pull-through AC/DC current sensors are best-in-class devices for use with power analyzers, Memory HiCorders and high performance oscilloscopes. The CT6904 is a DC to 4 MHz/500A (up to 800 A special order available) sensor, ideal for capturing current signals from switching power supplies, inverters, power conditioners, etc.

The sensor uses flux gate detection within the zero flux method to deliver outstanding linear properties, enabling it to maintain high precision even at low current levels.

CAT III 1000 V

Key Features
• 500 A (rms) rated for measurement of large currents *
*Can be customized up to 800 A. Please contact your Hioki distributor or subsidiary for more information.
• DC to 4 MHz (±3 dB) wide measurement frequency range
• ±10 ppm excellent linearity
• 120 dB (100 kHz) high Common-Mode Rejection Ratio (CMRR)
• ±0.04 % power accuracy in combination with the Hioki PW6001 Power Analyzer

Model No. (Order Code)

CT6875 500 A AC/DC, ME15W terminal, 3 m (9.84 ft) cable length
CT6875-01 500 A AC/DC, ME15W terminal, 10 m (32.81 ft) cable length

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

Rated current 500 A AC/DC
Max. allowable input 550 A (requires derating at frequency, However, up to ±1000 A peak is allowable if within 20 ms (design value)
Frequency characteristics Amplitude: DC to 4 MHz
Phase: DC to 1 MHz
Linearity ±10 ppm Typical (23°C (73°F))
Offset voltage ±10 ppm Typical (23°C (73°F), no input)
Amplitude and Phase accuracy DC (±0.025 % rdg. ±0.007 % f.s.)
45 Hz ≤ f ≤ 65 Hz (±0.02 % rdg. ±0.007 % f.s., Phase: ±0.08°) Defined to 1 MHz
Output voltage rate 4 mV/ A (2 V / rated current value)
Core diameter φ 32 mm (1.26 in)
Operating temperature, humidity -10°C to 50°C (14°F to 122°F)
80% RH or less (with no condensation)
Power supply Power supplied from PW6001, PW3390, and CT9555
Power consumption 7 VA Max. (500 A/55 Hz measurement, with a power supply of ±12 V)
Dimensions and mass 139 mm (5.47 in)W × 120 mm (4.72 in)H × 52 mm (2.05 in)D, 1 kg (35.3 oz), cord length: 3 m (9.84 ft) (excluding protrusions and cables)
Accessories Instruction manual ×1, Carrying case ×1, Color labels (for channel identification) ×1
Catalog: AC/DC CURRENT SENSOR CT6904 Download PDF  [2MB] English

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