Product Images are shown for illustrative purposes only and may differ from actual product.

WCM3720A AC Current Sensing Module

  • Stock: Out Of Stock

    Availability: NotInStock priceValidUntil: 2026-03-13

  • Brand: Winsen
  • SKU: 731 | DAA453

Availability: NotInStock priceValidUntil: 2026-03-13

  • Rs. 1,150.50 (inc GST)
    Rs.975.00 + GST

    Qty :

GST Invoice: Available for all purchases — eligible for input tax credit.

Delivery: 2–8 days across India. No MOQ required.

Bulk Orders: Need more quantity or not in stock? Email: dnatechindia [at] gmail.com

Import Service: We import a wide range of electronic components on request.

WCM3720A AC Sensing Current Module


The Winson WCM3720A current Sensor Module provides economical and precise solution for AC current sensing in industrial, commercial and communications systems. The unique package allows for easy implementation without breaking original system and make current sensing possible. Typical applications include load detection and management, over-current fault detection and any intelligent power management system etc…

The WCM3720A module consists of a current sensor and a very high accuracy Analog to Digital converter, power on/off switch, digital signal of current and a setting current over control output and an internal regulator for sensor. The WCM3720A includes a current sensor with a diameter 9mm hole, users can just use system’s own electric wire by pass it through this hole to measure passing current without breaking original system, user’s MCU can get the real data from DATA pin.

We have Various sizes of Modules. Check out our complete collection of  Modules


If you are in Nashik you can buy this Electronic Component at our local shop at New CBS, Nashik or you can place order online and get it delivered at your doorstep anywhere in India.

Feature of WCM3720A

  • Operating Voltage: 4.0 V ~12.0 V for Vcc

  • Isolation Voltage 4KV

  • Digital current data output, easy interface with MCU (UART communication)

  • Baud Rate: 2.4K bps

  • Internal regulated voltage for sensor

  • Measurement range: 0A – 20A

  • Built-in LCD driver

  • Resolution: I < 10A: 1 mA I ≧  10A: 10 mA

  • Accuracy (0A ~ 20A): 80mA ~ ± 5%

  • Can setting 1~15A over-current protection control

  • Calibrated by 5V,could customize different voltage calibration

  • Provide 3.3V operating module


Applications of WCM3720A

  • AC Current meter

  • Current Protector

Extra Information
Country of Origin China
Imported By ElectroSource Private Limited

Reviews (1)

Write a review

Note: HTML is not translated!
    Bad           Good
CAPTCHA verification code

Frequently Asked Questions

Do you provide a GST bills?
Yes we provide GST Bill by the name of DNA Solutions. You will receive a GST compliant invoice for your records. You can take GST benefit.
What is your return / replacement policy?
Returns/replacements depend on the item type and condition. If there’s an issue, contact us with photos/videos and we’ll guide you as per policy.
Do you ship all over India?
Yes — we dispatch orders across India.
I forgot to add GST number at time of placing order, but I need GST Invoice in my firms name?
You can contact us via Contact us page and send your order details and GST number we will send you updated Invoice soft copy.
What details should I send for a bulk quote?
Send these details for an accurate bulk quote: - Part number(s) - Quantity required - Preferred brand (if any) - Product image (if possible) - Delivery address + PIN code - GST invoice needed (Yes/No) + GSTIN (if Yes)
Are components original / new?
We aim to supply genuine, new parts. For sourced items, we confirm availability and provide the best matching grade/brand possible.

NEW Products

Product Page : New Products

2N2222 Amplifier Transistor(TO-92)

2N2222 Amplifier Transistor2N2222 is NPN BJT normally used in low power amplifiers and also for swit..

Rs.2.36 (inc GST)
Rs.2.00 + GST

SKU: 821 | DAA284
Stock: 1

B1212S 2WR3 Mornsun DC To DC Fixed Input Converter

Mornsun B1212S 2WR3 DC-DC Fixed Input Converter B1212S-2WR3 Mornsun 12V to 12V DC-DC Converter, 2W,..

Rs.234.53 (inc GST)
Rs.198.75 + GST

SKU: 6065 | DAG894
Stock: 25

5 Pin Male Right Angle Header 3.81 mm pitch (Combicon Connector)

Combicon 5 Pin Right Angle Male Connector 5 Pin Combicon PCB Mount Right Angle Male Header with 3.8..

Rs.33.04 (inc GST)
Rs.28.00 + GST

SKU: 3014 | DAE742
Stock: 20

LM35 Temperature Sensor

LM35 Temperature SensorLM35 Precision Centigrade Temperature Sensors The LM35 series are precision i..

Rs.110.45 (inc GST)
Rs.93.60 + GST

SKU: 2 | DAA599
Stock: 30

Have You Seen

Product Page : Have You Seen

KA78R12 12V Low Dropout Voltage Regulator TO‑220 Package

KA78R12 12V Low Dropout Voltage RegulatorKA78R12: 12V Voltage Regulator with low dropout and built-i..

Rs.88.50 (inc GST)
Rs.75.00 + GST

SKU: 10017 | DAJ007
Stock: 20

MPX2010DP Pressure Sensor

MPX2010DP Differential Pressure Sensor with Dual Ports MPX2010DP Pressure Sensor provides accurate p..

Rs.1,156.40 (inc GST)
Rs.980.00 + GST

SKU: 1569 | DAA562
Stock: 1

74LS32 Quad 2-Input OR Gate DIP IC

74LS32 Quad 2-Input OR Gate DIP IC74LS32 Quad 2-Input OR Gate DIP ICThe 74LS32 Quad 2-Input OR is a ..

Rs.17.94 (inc GST)
Rs.15.20 + GST

SKU: 8869 | DAI209
Stock: 15

DB9 male PCB Mount with Internal thredding

DB9 male PCB Mount with Internal threddingDB9 Male Right Angle Connector with internal threading; de..

Rs.15.34 (inc GST)
Rs.13.00 + GST

SKU: 3805 | DAG105
Stock: 20

Related Products

ESP8266 ESP01 Serial Adaptor Module

ESP8266 ESP01 Serial Adaptor Module

ESP8266 ESP-01 Serial Adaptor Board for Wi-Fi Module ESP-01 Serial Adaptor Board for ESP8266 Wi-Fi ..

Rs.174.64 (inc GST)
Rs.148.00 + GST

SKU: 1285 | DAA765
Stock: 0
WCS37A50 Hall Effect Current Sensor

WCS37A50 Hall Effect Current Sensor

WCS37A50 Hall Effect Current Sensor WCS37A50 - Hall Effect Current Sensor for AC and DC sensing, fe..

Rs.413.00 (inc GST)
Rs.350.00 + GST

SKU: 2664 | DAE109
Stock: 6
Mornsun B0505LS-1WR3 DC-DC converter

Mornsun B0505LS-1WR3 DC-DC converter

Mornsun B0505LS-1WR3 DC-DC Converter - 5V 1W Mornsun B0505LS-1WR3 DC-DC converter, 5V 1W output, 85..

Rs.177.00 (inc GST)
Rs.150.00 + GST

SKU: 7139 | DAE478
Stock: 100
Hongfa HF46F/12-HS1T 12 Volt Relay

Hongfa HF46F/12-HS1T 12 Volt Relay

Hongfa HF46F/12-HS1T 12 Volt Electromagnetic RelayHongfa HF46F/12-HS1T Relay for general-purpose swi..

Rs.43.07 (inc GST)
Rs.36.50 + GST

SKU: 8626 | DAH895
Stock: 100