AC Single Phase Voltage Transformer Sensor

Precision Voltage Transformer Isolation: Built with an ZMPT101B micro precision voltage transformer to safely sample and isolate high-voltage AC mains signals from delicate microcontroller electronics.

Onboard Operational Amplifier Conditioning: Integrates an onboard high-accuracy op-amp circuit that amplifies and conditions the AC sine wave signal into a smooth analog output.

Onboard Gain Adjustment Potentiometer: Outfitted with a multi-turn trimmer potentiometer allowing easy gain calibration and peak signal scaling to match your microcontroller's ADC voltage range.

Wide AC Mains Voltage Sensing Range: Accurately measures single-phase AC voltages up to 250V AC (50Hz / 60Hz), making it suitable for residential grid and industrial line monitoring.

Analog Waveform Signal Output: Delivers a proportional analog sine wave output for real-time AC voltage wave sampling, peak detection, and RMS calculation algorithms.

Housing & Board Material: High-grade FR-4 glass-epoxy PCB with blue ZMPT101B transformer enclosure, terminal block, blue potentiometer, and tinned header pins.

Technical Specifications:

Operating Supply Voltage: 5.0V - 30.0V DC (Logic/Op-Amp VCC).

Target AC Voltage Input: Up to 250V AC.

Output Signal Type: Analog Voltage Waveform.

Color: Blue PCB with Blue Transformer Enclosure and Black Terminal Block.

Usage Advice: Connect AC mains lines securely to the high-voltage screw terminal block; supply VCC (5V) and GND to the header pins, and connect the OUT pin to an analog pin on your Arduino, ESP32, or STM32.

Maintenance: Ensure AC high-voltage terminal screws are firmly tightened before powering on; keep the PCB clean, dry, and protected from static charges and moisture.

Essential Mains AC Voltage Sampling Module: Position as a key diagnostic module for smart energy meters, AC line voltage monitors, home automation grid protection, and solar inverter monitoring.

Highlight Safe Galvanic Transformer Isolation: Emphasize how the built-in ZMPT101B voltage transformer provides complete galvanic isolation, allowing safe sampling of high-voltage AC lines without frying downstream microcontrollers.

Recommended Cross-Sell Add-ons: Pair with INA3221 Power Supply Voltage Monitor Board, TXS0108E Bi-directional Voltage Module, Voltage Sensor Module, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Voltage Sensor collection page as your high-accuracy AC mains voltage transformer sensor module.