Small Wireless Current Transducer SCT-125W by Magnelab

70-800 Aac input : 333 mVac output. 1.25″ opening

Product Description

Magnelab’s Small Wireless Current Transducer SCT-125W split-core current sensors transform an AC input current up to 800 Amps to an output of 0.333V RMS or 1.0V RMS. Split-core transformers are ideal for installation on existing electrical wiring by snapping around the conductor. The SCT series have a self-locking mechanism.

Each CT contains a radio frequency link powered by the measured current which will link up with the Controller (PT Unit) for any current above 5A.

Contents include 3 AC Wireless split-core current sensors and one Controller (PT unit). The controller provides three outputs that correspond to the three remote CTs in both amplitude and phase.

The controller can be DIN rail mounted.

Frequent Applications

  • Data logging
  • Recording
  • Power monitoring
  • Energy management
  • Cost allocation

You can view all of our current sensors here.


  • Rated input up to 800 Amps
  • Output of 0.333 Volt at rated current Linearity accuracy +/- 1%
  • Accuracy from 5A to 130% rated current
  • Phase angle < 1 degree at rated current
  • Operates from 50 Hz to 400 Hz
  • Wireless with a 10 meter range
  • Controller is powered by 120 VAC or 240 VAC
  • Maximum Voltage: 600 V (on bare conductor)
  • Temperature: -30°C to +60°C
  • UL recognized, CE, and RoHS compliant
  • 7-Year Warranty

Data Sheets

Technical Specs
Installation Guide


UL Registered


Made in USA

ISO 9001

rohs compliant


Additional information

Weight3.2 lbs
Dimensions12 x 9 x 3 in
AC Voltage Output

333mV, 1V