Current transformers convert "high" currents (< 5000 A) of a 1 or 3 phase network into "low" currents (1 A or 5 A).
Our energy measuring devices require these current transformers in order to record and convert the electrical parameters.
Weidmüller relies on the proven current transformers from MBS, which ideally round off the Weidmüller portfolio.
A Rogowski coil is a closed air coil without a ferromagnetic core used for floating potential measurement of AC and pulse currents. Measurement with the Ragowski coil is used widely in technology, as it can be retroactively integrated without separating the primary electric circuit in existing systems. Because this method shows no saturation effect, even the smallest currents and high-frequency harmonics can be measured without loss of accuracy.
The cable-type current transformer is primarily used in retrofitting to avoid splitting the primary conductors.
Thanks to its dimensions and ease of handling, the cable-type current transformer is particularly suitable for use in places that are difficult to access or in case of limited space
In combination with the securing clamps, the "click" system even enables "one-handed" installation.
The CMA-CTM 7 series mini current transformer is an inductive current transformer
designed according to the transformer principle for circular primary conductors.
The CMA-CTM 7 series current transformers are maintenance-free and is designed for
measuring primary currents in the range 32 A to 64 A.
This is converted into a current up to 1 A on the secondary side.
With its small dimensions, it perfectly suits applications in a 3-phase circuit breaker
with a phase separation of 17.5 mm.
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