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CR Magnetics General Purpose Wire Lead Current Transformer

Available in multiple versions

Price: $7.99 - $17.86
Product Specifications
Brand Name CR Magnetics
UNSPSC Code 39121002

This CR Magnetics CR8400 series current transformer is suitable for use in ... Read full product description

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1.5 Vmax RMS, 10 A Maximum Input Current B005CWO20A
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10.2 Vmax RMS, 50 A Maximum Input Current B005CWO5FC
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12.8 Vmax RMS, 75 A Maximum Input Current B005CWO76E
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14.6 Vmax RMS, 200 A Maximum Input Current B005CWO8GI
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2.1 Vmax RMS, 20 A Maximum Input Current B005CWO2W8
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3.8 Vmax RMS, 50 A Maximum Input Current B005CWO3U4
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6.8 Vmax RMS, 50 A Maximum Input Current B005CWO70A
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Product Features

  • Alternating current sensing
  • Epoxy-encapsulated with polypropylene resin case
  • Wire lead connection
  • UL Recognized and CE certified for quality assurance

Product Details

  • Shipping Information: View shipping rates and policies
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B006K3N5YY
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (1 customer review)
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Product Description

This CR Magnetics CR8400 series current transformer is suitable for use in industrial automation systems. The transformer is epoxy-encapsulated with a polypropylene resin case, and has two wire leads for connection. This current transformer is Underwriters Laboratories (UR) Recognized and Conformité Européenne (CE) certified for quality assurance, and is suitable for sensing alternating current (AC) loads.

Frequency Range20-1,000 Hz
Insulation Voltage3,500 VAC
Operating Temperature-40 C to 85 C

CR Magnetics manufactures electrical sensors, indicators, and displays. The company, founded in 2004, is headquartered in Saint Louis, MO.

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Most Helpful Customer Reviews

2 of 3 people found the following review helpful By J. Berting on June 2, 2014
Size Name: 6.8 Vmax RMS, 50 A Maximum Input Current Verified Purchase
It would be kind of unusual for anyone to buy these who doesn't know how to use them... My application was as a current monitor for a household AC generator hookup. For those who don't know, current transformers require a load resistor that is not part of this purchased coil part. The load resistor is placed across the output of the coil, and the AC voltage across the resistor is proportional to the current flowing through the wire at the center of the coil. The value of the load resistor and the design of the coil will determine the range of current that can be measured. I've scaled mine using the CR8449-1000 coil so that 1 Volt RMS output means that 10 Amps of current is flowing through the wire. (If anyone cares, I used a 101.6 Ohm, 1 Watt resistor to measure a 30 Amp circuit. Over-design the power handling of the load resistor, you don't want it getting hot!) This works well, and does exactly what I need it to.
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