Milesight Smart Current Transformer CT103-868M
The Milesight CT103-868M is a compact, high-accuracy LoRaWAN® smart current transformer designed for remote energy monitoring. With 250A rated input, 3.3 kHz sampling, and built-in NTC temperature sensor, it offers safe, wireless, and real-time measurement—ideal for energy management and predictive maintenance.
incl. VAT105,91 €excl. VAT89,00 €plusShipping Costs
3 in stock
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Product Description
Technical Details
The Milesight CT103-868M is an intelligent LoRaWAN® current transformer that enables real-time and accurate current measurement for smart buildings, electrical panels, and industrial energy systems. With a sampling frequency of 3.3 kHz, ±1% accuracy (above 5A), and a resolution of 1 mA, it ensures precise RMS current monitoring.
Its non-invasive clamp design makes it easy to install without disconnecting power, significantly reducing downtime and installation costs. The CT103 supports induced current power supply or USB-C power and integrates an NTC temperature sensor to monitor cable temperature, ensuring operational safety.
The device supports LoRaWAN® Class A connectivity and includes intelligent features like threshold alarms, overrange detection, and FUOTA (Firmware Update Over-The-Air). Configuration can be done via USB-C or downlink, and the device seamlessly integrates with Milesight gateways and cloud platforms for remote visualization and control.
Ideal for applications like:
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Industrial energy monitoring
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Machine health diagnostics
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Smart building infrastructure
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Power load detection
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Cable overheating alerts
| Milesight Smart Current Transformer CT103-868M – Technical Specifications | |
|---|---|
| Electrical Measurement | |
| Detection Parameter | RMS Current |
| Sampling Frequency | 3.3 kHz |
| Working Frequency | 50–60 Hz |
| Rated Primary Current | 250 Arms |
| Rated Secondary Current | 125 mArms |
| Minimum Reporting Current* | 12 Arms (1 min), 6 Arms (10 min) |
| Accuracy | ±1 % (>5 Arms), ±3 % (≤ 5 Arms) |
| Resolution | 1 mA |
| Temperature Sensor | NTC; Range: -20°C ~ 100°C; Accuracy: ±1 % |
| Wireless Transmission | |
| Protocol | LoRaWAN® |
| Antenna Connector | 1 × 50 Ω SMA (SMA Female Center PIN) |
| Frequency | CN470 / IN865 / RU864 / EU868 / US915 / AU915 / KR920 / AS923-1/2/3/4 |
| Tx Power | 16 dBm (868 MHz) / 22 dBm (915 MHz) / 19 dBm (470 MHz) |
| Sensitivity | -137 dBm |
| Mode | OTAA/ABP Class A |
| Interfaces & Indicators | |
| Button | 1 × Reboot Button |
| LED Indicator | 1 × Status/Alarm Indicator |
| Port | USB Type‑C (Power, Configuration, Console, Temp Sensor) |
| Software Features | |
| Configuration | USB Type-C, Downlink |
| Advanced Features | Threshold Alarm, Overrange Alarm, FUOTA |
| Physical Characteristics | |
| Power Supply | 1. Induced current power 2. 5V via USB-C |
| Insulation Voltage | 2.5 kVac (1 mA / 1 min) |
| Color / Material | Blue, PBT+PC (UL94 V0) |
| Extension Cable Length | 1 m |
| Operating Temperature | -20°C ~ 70°C |
| Storage Temperature | -25°C ~ 80°C |
| Relative Humidity | ≤ 95 % (non-condensing) |
| Ingress Protection | IP30 |
| Dimensions | Clamp: 86.5 × 31 × 37.4 mm Wire Hole: 16 mm |
| Weight | 85.65 g |
| Installation | |
| Mounting | Transceiver: Cable-tie Clamp: Suspended on Conductor |
| Certifications | |
| Regulatory | CE, FCC, UL508 |
