SCT-1250 Current Sensor

Current Sensor, 0.333 Voltage Output

1.25 inch Opening up to 800 Amp Vac Output


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Current Sensor Features

·Rated input from 70 Amp to 800 Amp
·Output 0.333 Volt AC at rated current
·Operates from 50 Hz to 400 Hz
·Phase angle < 2 degrees measured at 50% rated current
·Linearity accuracy ± 1%
·8 ft. twisted-pair lead
·UL recognized
·Accuracy at 10% to 130% of rated current
·Custom output and other parameters are available


The Magnelab SCT-1250 series is a popular and frequently used split core current sensing transformer. Designed to transform up to 800 amperes of AC input current into a 0.333 volt output, this AC current sensor is ideal in existing electrical wiring installations. In addition, it may simply and safely be snapped around a conductor that is already installed. At the same time, the SCT-1250 series comes with a self locking mechanism for added safety. It is most commonly used in recording, data logging, energy management, power monitoring and cost allocation.

As a split core current transformer manufacturer, Magnelab created a number of transformers, including the SCT-075H split core current transformer, which is similar to the SCT-1250 but has a rated current up to 200 amperes. Furthermore, the SCT-1250 has a maximum of 800 Amps rated input and a 0.333 Volt output. At the same time, its linearity accuracy is impressive at 1% either way and this accuracy is at 10 percent to 130 percent of the rated current. The phase angle is less than 2 degrees. It operates within the frequency range of 50 Hz and 400 Hz and comes with a twisted pair lead measuring 8 foot in length. On a bare conductor, maximum voltage is 600 volts. In fact, the device is fully UL recognized and compliant with CE and RoHS standards. Finally, it comes with a 10 year warranty as standard to guarantee its quality.


SCT-1250-000 No Burden Resistor
SCT-1250-070 70 Amp
SCT-1250-100 100 Amp
SCT-1250-150 150 Amp
SCT-1250-200 200 Amp
SCT1250-250 250 Amp
SCT-1250-300 300 Amp
SCT-1250-400 400 Amp
SCT-1250-600 600 Amp
SCT-1250-800 800 Amp
All Dimensions in Inches
A 3.250
B 3.350
C 1.000
D 1.250
E 1.250