30A ACS712 Current Sensor
30A ACS712 Current Sensor
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Looking to buy 30A ACS712 Current Sensor at the best price in India? Tech Depot India offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
Specifications
| Sensor IC | ACS712ELCTR-30A-T (Allegro MicroSystems) |
| Current Measurement Range | -30A to +30A (AC or DC) |
| Sensitivity | 66 mV/A (typical at 5V supply) |
| Quiescent Output Voltage | ~2.5V (at zero current, VCC/2) |
| Operating Voltage | 5V DC |
| Output Type | Analog voltage (ratiometric to VCC) |
| Isolation Voltage | 2.1 kV RMS (min) between current path and signal pins |
| Internal Conductor Resistance | 1.2 mOhm (typical) - ultra-low power loss |
| Bandwidth | 80 kHz (typical) |
| Response Time | 5 us (typical) |
| Output Filter Capacitor | Onboard (1 nF typical, user-replaceable for bandwidth tuning) |
| Operating Temperature | -40 degreesC to +85 degreesC |
| Module Dimensions | ~31 mm x 13 mm |
| Mounting | Two screw terminals for current path + 3-pin header (VCC, GND, OUT) |
| Connector Pitch | 2.54 mm header - breadboard and jumper-wire compatible |
| ADC Compatibility | Direct connection to any microcontroller ADC (Arduino, ESP32, STM32, Raspberry Pi with external ADC) |
| Origin | Original ACS712 IC / Authentic Module |
Why Choose 30A ACS712 Current Sensor?
100% Authentic
GST Invoice - A GST invoice is included with every order.
Expert Support - Dedicated technical help on WhatsApp and email.
Pan-India Delivery - Shipped across Bengaluru, Delhi NCR, Hyderabad and all of India.
Trusted by Makers - Used by students, hobbyists and professionals nationwide.
Key Features of 30A ACS712 Current Sensor
- Bidirectional +/-30A Sensing: Measures both AC and DC current in either direction with a linear analog output centered at VCC/2.
- Hall-Effect Isolation: The ACS712 uses an internal Hall-effect element, providing galvanic isolation (2.1 kV RMS) between the high-current path and the low-voltage signal output - no optocouplers or transformers needed.
- Ultra-Low Insertion Loss: 1.2 mOhm internal conductor resistance means negligible voltage drop and minimal heat generation even at full 30A load.
- Analog Output - Easy to Read: Output voltage swings linearly around 2.5V; simply read with an ADC and apply the 66 mV/A sensitivity to calculate current.
- Fast Response: 5 us output response time and 80 kHz bandwidth enable real-time current waveform capture, fault detection, and power-quality analysis.
- Screw Terminal Current Path: Heavy-duty screw terminals accept thick wires for high-current connections - no soldering required for the power side.
- Breadboard-Friendly Header: 3-pin 2.54 mm header (VCC, GND, OUT) plugs directly into breadboards or connects via standard jumper wires.
- Onboard Power LED & Filter Cap: Power indicator LED confirms module is active; onboard filter capacitor smooths output noise.
- Wide Temperature Range: Rated -40 degreesC to +85 degreesC for reliable operation in industrial, automotive, and outdoor environments.
- Genuine ACS712 IC: Authentic Allegro MicroSystems ACS712ELCTR-30A-T - not a counterfeit or remarked chip
30A ACS712 Current Sensor Module
Measure AC and DC currents up to +/-30A with precision using the ACS712-based current sensor module from Tech Depot India, Bengaluru. This Hall-effect sensor provides isolated, low-noise analog output proportional to current flow - ideal for energy monitoring, motor control, overcurrent protection, and IoT power-tracking projects.
How It Works
- Principle: Current flowing through the internal copper conductor generates a magnetic field detected by the integrated Hall-effect sensor. The IC converts this field into a proportional analog voltage.
- Zero-Current Output: At 0A, the output sits at approximately 2.5V (VCC/2). Positive current increases the voltage; negative (reverse) current decreases it.
- Conversion Formula: Current (A) = (Analog Voltage 2.5V) / 0.066 V/A. For a 10-bit ADC on a 5V Arduino: Current = ((ADC_Value x 5.0 / 1024) 2.5) / 0.066.
- AC Measurement: For AC current, sample rapidly over one or more full cycles and compute the RMS value from the readings.
Frequently Asked Questions
Is technical support available?
Yes, responsive support via email and WhatsApp for setup, troubleshooting, and application guidance.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Customer Support
Email: techdepotindia@gmail.com
WhatsApp: Available for setup and troubleshooting help
Order your 30A ACS712 Current Sensor today and start building your next project.
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