Range
Product categories
Series
Our product series
All series (20)
What are current transformers?
Current transformers are inductive instrument transformers that convert high primary currents proportionally into small, easily measurable secondary currents. They provide galvanic isolation between power and measuring circuits.
Common designs are ring-type CTs for busbar mounting, wound-primary CTs for compact installations, split-core CTs for retrofits and protection CTs for fault detection.
Knowledge baseSelection guide
Find the right transformer
FAQ
FAQ about Current Transformers
Which types of current transformers does Stromwandler24 offer?
We supply plug-on current transformers, wound-primary current transformers, retrofit (split-core) current transformers as well as summation and protection transformers for various accuracy classes.
What should be considered when selecting a current transformer?
Key factors are the transformation ratio (primary and secondary current), the required power (burden in VA) and the accuracy class (e.g. class 0.5 or 0.2s).
Are our current transformers suitable for billing purposes?
Yes, we offer a wide range of current transformers approved for official calibration or conformity-assessed measurements.
Still have questions?
Tell us what you need to measure and we will suggest the right transformer. Usually answered the same working day.
Go deeper
Fundamentals, selection guides and calculators for current measurement.
To the knowledge base →