CT105 – 500A LoRaWAN High Current Sensor with NTC Probe – Milesight
General Description
Milesight 's CT105 is an industrial current sensor that accurately measures AC currents up to 500 A RMS. It combines an NTC temperature sensor, LoRaWAN® connectivity, a multi-function USB-C port, and an integrated LED indicator. Designed for demanding electrical environments, it's ideal for energy monitoring and predictive maintenance.
Targeted Applications
- Monitoring of high-power industrial equipment
- Energy consumption analysis in constrained environments
- Predictive maintenance in electrical installations
- Combined current and temperature measurement
Highlights
- RMS measurement up to 500 A with ±1% accuracy
- Built-in NTC probe (-20°C to 100°C)
- LoRaWAN® connection with SMA antenna
- USB-C port for power, configuration and probe
- Compact, lightweight and easy to install on cable
- IP30 rating, UL94 V0 flame retardant materials
Technical Specifications
Electrical Measurements |
Measured parameter |
RMS current |
Sampling frequency |
3.3 kHz |
Working frequency |
50~60 Hz |
Nominal current |
500 Arms (primary) / 150 mArms (secondary) |
Minimum current detected |
30 Arms (1 min) / 10 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, NTC sensor) |
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 |
Transmitter: 38 × 34.5 × 16 mm, CT Clamp: 68 × 86 × 41.8 mm |
Weight |
Transmitter: 13.05 g, CT Clamp: 276.75 g |
Cable passage |
F 36.6 mm |
Facility |
Suspended CT clamp, transmitter in cable clamp mounting |
Compliance |
Certifications |
CE, FCC, UL508 |
Interfaces and Connectors
The CT105 includes a USB Type-C port for power and configuration, an SMA antenna connector, an integrated LED, and a robust CT clamp. It easily mounts to conductors via a cable clamp.
Pack Contents
- 1 × CT105 Current Sensor
- 1 × User Guide
- 1 × Mounting Kit