Rev Grade Current Sensor – LNxF by Sentran Corp

Product Description

The LNxF series by Sentran Corp is a rev grade current sensor family (0.2% accuracy) that is UL Listed.

The LNxF series is a rev grade current sensor that comes in these varieties:

  • LN2F – 0.4″ window opening measuring from 1A to 100A
  • LN3F – 0.7″ window opening measuring from 15A to 200A
  • LN4F – 1.25″ window opening measuring from 50A to 600A

The LNxF is UL Listed to UL 2808 and CSAC22.2 61010-1.   The family is of accuracy class 0.2 per Table 11, IEC60044-1.  It provides a wide bandwidth of operation.  The LNxF easily opens thanks to its shrouded hinge-snap top, allowing for one-hand installation.  The LNxF is CAT IV overvoltage tested to 7400VAC.

The LNxF has excellent low current sensitivity, making it a good option for individual circuits.

The LNxF series can be ordered with these voltage outputs: 33.3mV, 50mV, 100mV, 250mV, 333.3mV (stocked), 500mV and 1000mV.  Use the Size/Amperage drop-down to see stocked varieties.

Compatible power meters accept a voltage input.  Look for meters on our website that start with this symbol:


Our 0.2% class meters that are compatible with the LNxF revenue grade current sensor family include:

You can view all of our current sensors here.


  • AC Input, mV Output
  • Bandwidth: 40Hz to 4000Hz
  • Crest factor: 1.414 times full scale input current
  • Voltage Rating: 600Vac, CAT IV overvoltage tested to 7400VAC
  • Output voltage: 33.3, 50, 100, 250, 333.3 (stocked), 500 and 1000mV
  • Optional output current:  Up to 0.333mA using current ratio
  • Accuracy:  Class 0.2 per Table 11, IEC60044-1
  • Output resistance:  Depends on turns ratio, but is below 500 ohms
  • Interface resistance required:  >50,000 ohms
  • Operating temperature rating:  -40C to 70C
  • Altitude:  Up to 2000 meters, Pollution degree 2, Humidity 95% non-condensing
  • Construction:  High temperature, high impact engineering plastic, UL Recognized
  • Lead wires:  8 foot standard black and white twisted pair 18AWG MTW double insulated UL1015
  • Shorted leads:  Continuous short will not harm product
  • Shielded cable is an option

Data Sheet

 Technical Data Sheet


UL Listed


CSA Logo

Made in USA

ISO 9001

rohs compliant

Available Models



Additional information

Weight.66 lbs
Dimensions1.5 x 5 x 5 in
Size / Amperage

0.4", 1A (2-3 wks), 0.4", 5A (in stock), 0.4", 25A (2-3 wks), 0.4", 50A (2-3 wks), 0.7", 100A (in stock), 1.25", 200A (in stock), 1.25", 400A (in stock), 1.25", 600A (2-3 wks)