The ZMCT103C is a compact and reliable current transformer (CT) sensor designed for precise AC current measurement in electronic metering and monitoring applications. It is commonly used in energy meters, power monitors, and circuit protection systems. With its small size and high accuracy, this sensor provides an easy and safe way to sense AC currents while maintaining isolation between the primary circuit and measurement electronics.

The device features a built-in ferrite core with a through-hole design, allowing direct insertion of the AC line conductor. It outputs a proportional AC signal suitable for interfacing with ADCs of microcontrollers, making it ideal for IoT-based energy monitoring and smart metering projects.

Features of ZMCT103C Current Transformer Sensor:

1. High-precision AC current transformer sensor
2. Compact design with PCB mountable package
3. Provides galvanic isolation between primary and secondary circuits
4. Proportional AC signal output for current measurement
5. Wide application in energy meters, power monitoring, and smart devices
6. Easy integration with microcontrollers (Arduino, ESP32, STM32, etc.)

Specifications of ZMCT103C Current Transformer Sensor:

• Model: ZMCT103C
• Type: Current Transformer (CT)
• Input Current Range: 0–5A AC (typical use case)
• Output: Proportional AC signal (mV-level depending on burden resistor)
• Turns Ratio: 1000:1 (approx.)
• Dielectric Strength: 3kV AC (isolation)
• Frequency Range: 50Hz–1kHz
• Operating Temperature: –25°C to +70°C
  
• Mounting: Through-hole PCB mount

Package Includes:

1 × ZMCT103C 10A Single Phase AC Current Transformer Sensor