Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Input Current Range | 0-5A AC |
| Output Signal | 0-1V AC (proportional) |
| Operating Frequency | 50Hz / 60Hz |
| Accuracy Class | ±1% |
| Supply Voltage | Not Required (Passive Sensor) |
| Isolation Voltage | 2500V RMS |
| PCB Dimensions | 35mm x 20mm x 15mm |
| Mounting Type | Through-hole with screw terminals |
| Core Material | High-permeability Silicon Steel |
| Ideal Application | Student Electronics Competitions & Data Logging |
Anonymous
Mar 28, 2026
Rating: 5/5
Perfect for our university project
We used this module for our final year electrical engineering design competition. It was easy to interface with our Arduino and provided stable readings for our energy monitoring dashboard.
Anonymous
Mar 13, 2026
Rating: 4/5
Good value for hobbyists
Works as described for single-phase AC detection. The output signal is clean, though you do need to calibrate it against a known load for precise measurements. Great for learning.
Anonymous
Mar 12, 2026
Rating: 4/5
Solid performance for the price
I bought three of these for a multi-channel data acquisition system. They all performed consistently. Just remember that the output is AC, so you'll need a rectifier circuit for DC microcontrollers.
Anonymous
Mar 02, 2026
Rating: 5/5
Exceeded expectations for student use
As a mentor for a robotics club, I recommend this sensor. It's durable enough to handle student errors and accurate enough to teach proper signal conditioning techniques.
Anonymous
Mar 02, 2026
Rating: 5/5
Robust and safe isolation
Safety is key when dealing with mains electricity. This transformer provides excellent galvanic isolation, giving me peace of mind while prototyping my home energy meter.
Anonymous
Mar 01, 2026
Rating: 5/5
Compact and easy to mount
The form factor is small enough to fit into tight enclosures. The screw terminals make connecting the primary wire very secure without needing to solder high-voltage lines.
Q: Can this be used for DC current measurement?
A: No, this module is designed specifically for Single-Phase AC current (50/60Hz). It will not detect or measure Direct Current (DC).
Q: Are the screw terminals large enough for 12 AWG wire?
A: Yes, the screw terminals are designed to accommodate wires up to 12 AWG comfortably, making it suitable for standard household wiring tests often done in college labs.
Q: Does this module require an external power supply to operate?
A: No, this is a passive current transformer. It generates its own output signal based on the magnetic field from the current flowing through the primary wire, so no external power is needed for the sensor itself.
Q: Is the output voltage compatible directly with Arduino analog pins?
A: The output is an AC voltage centered around 0V. To read it safely with an Arduino (0-5V DC), you typically need to add a biasing circuit (shifting the signal to 2.5V) and potentially a rectifier or sample both halves of the wave in software.
Q: What is the maximum current this sensor can handle before saturating?
A: The module is optimized for 0-5A. While it can physically withstand higher currents briefly, accuracy will drop significantly above 5A due to core saturation. For higher currents, we recommend our 10A or 20A models.
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