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Flexible rogowski coil – MRC Series – 100A to 600A
Price range: €38.00 through €45.00 excl. VAT
The MRC series is a new generation of flexible Rogowski coil (Rogowski® coil) current sensors, which are especially suitable for measuring in combination with portable devices. MRC coils have different sizes to cope with different conductors.
These coils can be easily installed, especially in areas with limited space, unlike large, cumbersome CTs (Current transformers)
It can be installed by opening up the coil, and without the need to switch off the electricity or disconnecting any wires.
The new generation of MRC coil strengthens the shielding layer and greatly reduces the influence of external magnetic fields; it can be directly connected to our rail-mounted and panel-type meters.
| Weight | n. a. |
|---|---|
| Available Sizes | MRC-24, MRC-36 |
| Connector Type | 2 Pin, BNC |
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Available sizes
| Model | MRC-16 | MRC-24 | MRC-36 |
|---|---|---|---|
| Window size | 16mm | 24mm | 36mm |
| Reference Rated current | 100A | 300A | 600A |
If you need to measure larger currents, then have a look at our NRC range of Rogowski coils…
Advantages of Rogowski coils:
- Easy to install in limited spaces, as is it soft and flexible
- Can be installed without having to switch off power or disconnect power supply
- Easy to install around large bus bars
- Excellent linearity
- Wide dynamic range
- Not damaged by large overloads
- Excellent degree of rejection to the external current conductor
- No danger from open-circuited secondary
- Zero power consumption
- Small position error
- Long-term stability
- Wide dynamic range
- IP67 protection level
Applications of Rogowski coils:
- Smart meters
- Rectifier current measurement
- Power quality analysis
- Motor overload/short circuit protection
- Current monitoring of power frequency and intermediate frequency welding machine
- Medium and high voltage switchgear protection system
- Remote Terminal Units (RTU)
Specifications:
At 25℃, RL = 100 kΩ
Product Downloads:
Frequently Asked Questions
Warranty
All measurement instruments sold by AmpX are covered by the manufacturer’s warranty (typically 24 months on the main instrument, 12 months on accessories such as test leads, clamps and batteries). Exact terms are stated on the warranty card supplied with the device.
What you get at AmpX:
- Warranty handled locally in Germany and South Africa — no overseas returns required
- 30-day no-questions-asked return policy
- Local spare parts and repair service for selected brands, like Meatrol.
- Direct technical contact by phone, email or WhatsApp for any warranty issue
Warranty issue? Email info at ampx.co or WhatsApp
Germany: +49 175 246 5195
South Africa: +27 82 940 1858
AmpX Management
Technical support
If you have any difficulty with the meter setup, installation, data analysis, or anything else, we will gladly support you.
Please contact our technical support department for technical support by Email info at ampx.co or WhatsApp:
Germany: +49 175 246 5195
South Africa: +27 82 940 1858
Free Demonstration
We can offer you a free demonstration of our energy meters at our premises or within 100 km. If further away, we will need to charge for our travel expenses.
Alternatively we can also do an online video consultation and demonstration.
Click here to request a demonstration if 100 km from our address.
Click here to schedule an online video call and demonstration.
What is a Rogowski coil?
Rogowski coils have been used for the detection and measurement of electric currents since 1912. They are based on a simple principle: an “air-cored” coil is placed around the conductor in a toroidal fashion and the magnetic field produced by the current induces a voltage in the coil. The voltage output is proportional to the rate of change of current. This voltage is integrated, thus producing an output proportional to the current. By using precision winding techniques, especially developed for the purpose, the coils are manufactured so that their output is not influenced by the position of the conductor within the toroid, and to reject interference from external magnetic fields caused, for example, from nearby conductors. Basically, a Rogowski coil current measuring system consists of a combination of a coil and conditioning electronics.
They can be used in similar circumstances to CTs (current transformers) but for many applications they have considerable advantages:
- Wide dynamic range.
- High linearity.
- Very useful with large size or awkward shaped conductors or in places with limited access.
- Thanks to the structure without hard core, the coil can be easily manufactured according to the application or to the available space.
- Unlike traditional current transducers, there is no danger from open-circuited secondaries.
- They cannot be damaged by large overloads.
- They are non-intrusive.
- They draw no power from the main circuit carrying the current to be measured.
- They are also light weight and in some applications are light enough to be suspended on the conductor being measured.
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