
EMC Applications

High AC Current

Power Electronics Diagnostics

Small AC on Large DC Current
Clip-around Rogowski current probe with 20MHz bandwidth, extended LF performance and superior form factor
A wide-band AC current probe with a small coil enabling measurement in even the most difficult to reach parts of a circuit.

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Extended low-frequency performance.

High-frequency operation up to MHz range.

Slim coil cross-section diameters: 3.5mm (for 2kV peak isolation) and 4.5mm (for 5kV peak isolation).

Coils longer than the standard 100mm and 200mm are available, with ultra-long coils >1000mm also customizable.

Low droop distortion characteristics, suited for long-pulse measurements.

Current rating from 60A peak to 300 kA peak.




| Model | Sensitivity (mV/A) | Peak Current (A) | Noise (mVp-p) | Droop (%/ms) | LF (-3dB) (Hz) | Peak di/dt (kA/µs) | HF (-3dB) Bandwidth (MHz) | |
|---|---|---|---|---|---|---|---|---|
| 100mm | 200mm | |||||||
| CWTmini/03 | 100 | 60 | 15 | 6.6 | 7.0 | 1.0 | 10 | 5 |
| CWTmini/06 | 50 | 120 | 15 | 4.8 | 5.0 | 2.0 | 10 | 5 |
| CWTmini/1 | 20 | 300 | 12 | 3.6 | 4.0 | 2.5 | 20 | 15 |
| CWTmini/3 | 10 | 600 | 10 | 1.8 | 2.0 | 5.0 | 20 | 15 |
| CWTmini/6 | 5.0 | 1,200 | 10 | 0.8 | 0.9 | 25 | 20 | 15 |
| CWTmini/15 | 2.0 | 3,000 | 8.0 | 0.4 | 0.5 | 25 | 20 | 15 |
| CWTmini/30 | 1.0 | 6,000 | 7.0 | 0.25 | 0.3 | 40 | 20 | 15 |
| CWTmini/60 | 0.5 | 12,000 | 5.0 | 0.2 | 0.2 | 40 | 20 | 15 |
| CWTmini/150 | 0.2 | 30,000 | 5.0 | 0.1 | 0.1 | 40 | 20 | 15 |
| CWTmini/300 | 0.1 | 60,000 | 5.0 | 0.05 | 0.05 | 40 | 20 | 15 |
| CWTmini/600 | 0.05 | 120,000 | 5.0 | 0.03 | 0.02 | 40 | 20 | 15 |
| CWTmini/1500 | 0.02 | 300,000 | 5.0 | 0.03 | 0.02 | 40 | 20 | 15 |
Peak - Higher peak currents above 300kA available upon request.
Noise - "Noise" refers to the noise generated internally by the integrator, with its primary frequency being the same as the low-frequency (-3dB) bandwidth.
High-Frequency (-3dB) Bandwidth - The indicated high-frequency (-3dB) bandwidth values are measured based on a 2.5-meter cable length.

Version: 202504

Version: 202504

Version: 202504

Version: 202504