Power Monitoring and Protection


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Kele AC Current Transducer 4CTV, 4CMA

Kele AC Current Transducer


Models 4CTV and 4CMA AC current transducers are AC amperage-to-analog DC transducers. Either current transducer can be used to directly monitor loads of up to 20A. For loads of 20-5000A, an external current transformer can be used. Developed for energy management and building automation systems, BAS, the Model 4CTV transducer converts an AC current to a 0-5 volt DC current. The Model 4CMA transducer converts an AC current to a 4-20 mA current that can be monitored by any processor that accepts analog DC voltage or current.


(Wholesale customers, log in for your special pricing)

QtyModelDescriptionIn StockList PriceInternet Price
4CMA 0-20 AMP CURRENT TRANS. 4-20MA In Stock95.7576.60
4CTV CURRENT TRANSDUCER 0-20/0-5V In Stock83.3066.64


No accessories found
  • 4CTV requires no external power supply
  • Rugged design to withstand momentary AC inrushes of 120A (6x rating)
  • Easy to install, only two connections
  • 50/60 Hz operation

Signal Output:

 :4CMA 4-20mA

 :4CTV 0-5 VDC

Sensor Power:

 :4CMA 15-30 VDC (loop powered)

 :4CTV Self-powered

Measurement Range:0-20 Amps

Max Input Current:120 Amps Continuous

Insulation Class:600V, insulated conductors

Frequency: 50/60 Hz

Response Time:

 :4CMA 200 ms Typical, 0-90%

 :4CTV 250 ms Typical, 0-90%

Output Load:

 :4CMA 1 MΩ Typical

 :4CTV 250Ω Typical

Accuracy: ±2% FSO (5-100% of range)

Operating Temperature:5 to 140℉ (-15 to 60℃)

Operating Humidity:5 to 90% RH non-condensing

Terminal Block:14 to 22 AWG

Enclosure Rating:NEMA 1

Dimensions:2.65″ x 2.7″ x 0.95″ (67 x 68.6 x 24.1mm)

Sensor Aperture:0.8″ (20.3 mm)

Enclosure Material:ABS/PC, UL94 V-0

Approvals:cULus Listed

Warranty:1 year


Download Additional Data

document   4CTV, 4CMA Catalog Page
document   4CMA_Install
document   4CTV_Install