CR Magnetics offers a complete line of products to monitor any group or individual power-using equipment.
From multi-function digital communication transducers to simple current transformers, our products enable the designer to choose the exact component that provides the maximum benefit to the system.
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CR3100 Series

The CR3100 Series Split Core Current Transformer is designed to provide a low cost method to monitoring electrical current. A unique hinge and locking snap allows attachment without interrupting the current-carrying wire. High secondary turn will develop signals up to 10.0 VAC across a burden resistor.

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  • Small size
  • Low cost
  • High secondary turns
  • Secure locking hinge


  • Maximum Continuous Primary Current: 75 AAC
  • Secondary turns: 3000
  • Wire leads: AWG #22
  • Frequency: 50/60 Hz
  • DC Resistance: 460 Ohms @ 20°C


  • Portable instruments
  • Sub-metering
  • Monitor motor loads
Item #: CR31
Our Price: Please select options below to see price
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Turns Ratio:  
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Other packages and ranges may be available.
Please contact factory for more information.