ZMCT103C Current Transformer Sensor Module

The ZMCT103C Current Transformer (CT) Sensor Module is a compact, high-precision AC current sensing module designed for non-invasive current measurement. Built around the ZMCT103C toroidal core transformer mounted on a PCB breakout board, it is ideal for energy monitoring, smart metering, and power management applications.

• Type: Split-core current transformer
• Sensor IC: ZMCT103C
• Rated Input Current: 0–5A AC
• Output: Analog signal via onboard pins (L/C/S)
• PCB Breakout: Pre-soldered with through-hole connectors
• Mounting Holes: For easy panel or board mounting
• Compatible With: Arduino, ESP32, STM32, Raspberry Pi, and other microcontrollers
• Application: AC current monitoring, energy meters, smart home systems

Simply pass the AC wire through the toroidal core and read the proportional output signal from the sensor pins. No need to cut or modify the existing circuit.