CT103 – LoRaWAN Compact RMS Current Sensor with NTC Probe – Milesight | DistrIoT
Milesight
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CT103 – LoRaWAN Compact RMS Current Sensor with NTC Probe – Milesight

Capteur de courant CT103 LoRaWAN RMS 100 A, précision ±1 %, sonde NTC -20°C à 100°C, connecteur USB-C, IP30, montage par câble.

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Description détaillée

CT103 – LoRaWAN Compact RMS Current Sensor with NTC Probe – Milesight

General Description

Milesight 's CT103 is a smart current sensor that accurately measures RMS current up to 100 A. It is compact and features an SMA connector for the LoRaWAN® antenna, an NTC temperature sensor (-20°C to 100°C), a USB Type-C port for power and configuration, and an LED status indicator. Designed for industrial or commercial applications, it is easy to install on conductors via its integrated CT clamp.

Targeted Applications

  • Monitoring electricity consumption in buildings
  • Predictive maintenance in industrial installations
  • Monitoring electrical circuits in a constrained environment
  • Energy control with integrated temperature measurements

Highlights

  • RMS current measurement with ±1% accuracy
  • Built-in NTC temperature sensor (-20°C to 100°C)
  • LoRaWAN® technology with SMA antenna connector
  • USB Type-C port for power, console or sensor
  • Quick installation with clamp and cable tie
  • Compact, lightweight and durable housing (UL94 V0)
  • IP30 protection rating

Technical Specifications

Electrical Measurements
Measured parameter RMS current
Sampling frequency 3.3 kHz
Working frequency 50~60 Hz
Nominal current 100 Arms (primary) / 100 mArms (secondary)
Minimum current detected 6 Arms (1 min) / 4 Arms (10 min)
Precision ±1% (>5 Arms), ±3% (≤5 Arms)
Resolution 1 mA
Temperature Sensor
Kind NTC
Beach -20°C to 100°C
Precision ±1%
Wireless Transmission
Technology LoRaWAN®
Antenna connector 1 × SMA female (50 Ω)
Frequencies CN470 / IN865 / RU864 / EU868 / US915 / AU915 / KR920 / AS923-1/2/3/4
Transmit power 16 dBm (868 MHz), 22 dBm (915 MHz), 19 dBm (470 MHz)
Sensitivity -137 dBm
Fashion OTAA / ABP – Class A
Interfaces and Configuration
USB 1 × Type-C (power supply, console, temperature probe)
Button 1 × reboot
Indicator 1 × Status/Alarm LED
Configuration Via USB Type-C or Downlink
Physical Characteristics
Food By induction or USB Type-C (5 V)
Insulation voltage 2.5 kVac (1 mA / 1 min)
Operating temperature -20°C to 70°C
Storage temperature -25°C to 80°C
Relative humidity ≤ 95% (non-condensing)
Protection index IP30
Dimensions 86.5 × 31 × 37.4 mm
Weight 85.65 g
Cable passage F 16 mm
Facility Suspended CT clamp, transmitter in cable clamp mounting
Compliance
Certifications CE, FCC, UL508

Interfaces and Connectors

The CT103 features a multi-function USB Type-C port, an SMA connector for LoRaWAN antenna, and supports the addition of an NTC probe. It also has a reboot button and a built-in LED indicator.

Pack Contents

  • 1 × CT103 Current Sensor
  • 1 × User Guide
  • 1 × Fixing kit (clamps, screws)