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H-FCT Ø8 Rogowski coil

  • Lonwow

Product description:

· High linearity from 1A to 500kA

· Wide dynamic range

· Very useful with large size or awkward shaped conductors or in places with limited access

· No danger from open-circuited secondary

· Not damaged by large overloads

· Non-intrusive, no power drawn from the main

· Measurement uniformity at any position of the conductor inside the coil

· Excellent degree of rejection to the external current conductor


H-FCT is a flexible current transducer based on Rogowski principle, particularly suitable for measurement in combination with portable devices. H-FCT coils are available in different sizes and can be supplied according to customer’s design, therefore they can be used in all those applications, in which traditional transducers are not fitting due to its size and/or weight.

Due to its specific features, flexible Rogowski coil is an extremely confortable solution for current measurement and can be used in a number of cases where traditional current transducer is not the adequate solution.

H-FCT coil is provided with a shield against the influence of external magnetic fields, therefore it grants a stable measurement from low currents to hundreds of kA. The Rogowski coils must be connected to an electronic integrator for 90° phase shift compensation and frequency equalization. Our DIN-RAIL and panel meters can interface Rogowski coils directly without the need of the external integrators. This is an advantage because there is no external boxes or any power supply with consequent ease of use. The particular features of the Rogowski coils combined with the extremely flexible input programming of our portable meters, allow to carry out measurement by all applications.

Common size:




Coil length



Window size




Rated current




Approx 100-120g

Output (di/dt)

6.8mV/kA@50z±5% 8.16mV/kA@60z±5% 1.2mV/kA@50z±5% 1.44mV/kA@60z±5%

Read Accuracy

Calibrated <0.5% (central position, 25℃)

     Uncalibrated < 5% tolerance (central position, 25℃)

Maximum current measurable


Coil Resistance

1A to 500kA

Coil Section


Lead length



Uncalibrated  200ppm/C

Calibrated  300ppm/C

Position Error

±1% maximum

            Output on 0A           (zero drift)


Phase error



±0.2% of reading


1Hz to 100kHz(-3dB)

Operating temperature

-30℃ to 80℃

Storage temperature

-40℃ to 90℃

Other requirements, please contact us to OEM.

Our company:

Lonwow Industry Co., Ltd. is a leading manufacturer of electrical metal conduits and fittings in Jiangsu Province, China. 

This factory is focused on Electrical Metallic conduits, fittings, C channels, and power bridge systems. Our main products are EMT, IMC, RSC steel conduits, aluminum conduits, stainless steel conduits, and fittings. C channel, Electrical junction box, flexible conduit, etc. We have UL certificates for our products of Electrical metal conduits and junction boxes. 
Our products widely exporting to many countries, such as the USA, Canada, Italy, Middle East, South Asian, etc. With our good quality and reputation. Warmly welcome all customers and friends to contact and cooperate with us.


Our service:

contact us-2

1. 24H at your service.

2. DIY, logo printing, carton designs are also accepted.

3. Free samples are ready for your reference.

4. Flexible terms of payment (T/T, L/C, DP and so on are all accepted).

Warmly welcome all customers and friends to contact and cooperate with us. Thank you for your interest in our products and service. 

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