CT3xx
Sensors Milesight

CT3xx

Three-phase smart current transformer

The CT3xx series from Milesight is designed for three-phase energy monitoring (1 to 3 phases). Its innovative 'One-to-Three' design enables monitoring of up to three circuits with a single LoRaWAN module. Self-powered with a 3.3 kHz sampling rate, these sensors deliver real-time RMS measurements and cumulative amp-hours. They include threshold and overcurrent alerts for predictive maintenance. Non-invasive clip installation without cutting power.

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From 117,46 € excl. VAT
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Reference

Technical specifications

Measurement
3-phase RMS current + amp-hours
Sampling rate
3.3 kHz
Accuracy
±1%
Temperature sensor
NTC, -20°C to 100°C
Protocol
LoRaWAN (OTAA/ABP, Class A)
Radio frequency
EU868
Power
Self-powered + USB-C
Protection
IP30
Design
1 to 3 clamps per module, non-invasive