ZMCT103C 10A AC Current Transformer Sensor | Compoden
ZMCT103C 10A AC Current Transformer Sensor
The ZMCT103C is a non-invasive AC current transformer capable of measuring up to 10A. It outputs a proportional AC voltage via a built-in burden resistor, making it easy to interface with microcontrollers. Ideal for energy monitoring, smart power meters, and overcurrent protection systems.
Key Specifications
| Specification | Value |
|---|---|
| Model | ZMCT103C |
| Input Current Range | 0–10A AC |
| Turns Ratio | 1000:1 |
| Output Type | AC voltage (proportional to current) |
| Burden Resistor | Built-in (typically 62Ω) |
| Operating Frequency | 50–60 Hz |
What You Can Build With This
- DIY home energy monitor with Arduino and an LCD display
- Overcurrent protection relay for appliances using an ESP32
- Smart plug that logs power consumption to the cloud via Wi-Fi
- Laboratory AC current meter with a microcontroller and OLED screen
Compatibility
The ZMCT103C works with any microcontroller that has an analog input, including Arduino Uno, Mega, ESP8266, ESP32, and STM32. Its output voltage is within 0–1V AC for the rated current, so an ADC with at least 10-bit resolution is recommended. For 3.3V boards, use a voltage divider or select a suitable burden resistor if adjustable.
Wiring Notes
Connect the output pin to an analog input; the transformer provides an AC signal centered around 0V. To measure with a single-ended ADC, bias the signal to mid-supply using a resistor divider or an op-amp circuit. No external power supply is needed for the sensor itself.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino Uno?
Yes, the ZMCT103C connects directly to any analog pin on the Arduino Uno. Use analogRead() and apply calibration to convert to current. Make sure to bias the signal for accurate RMS measurement if needed.
Can I measure DC current with this?
No, this is an AC current transformer and only works with alternating current. For DC current, consider a Hall effect sensor like the ACS712.
Does it require an external burden resistor?
No, the ZMCT103C module includes a built-in burden resistor (usually 62Ω), so you can connect it directly to your ADC. If you need a different output range, you can modify the onboard resistor.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
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Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items