Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | WCS1800 |
| Rated Current | 35A |
| Sensing Principle | Hall Effect |
| Output Type | Analog Voltage |
| Supply Voltage | 5V DC |
| Response Time | < 5µs |
| Isolation Voltage | 2.5kV |
| Operating Temperature | -40°C to +85°C |
| PCB Dimensions | 42mm x 20mm x 14mm |
| Application | Overcurrent Protection & Short Circuit Detection |
Anonymous
Mar 22, 2026
Rating: 4/5
Solid performance for the cost
Not industrial grade, but perfect for prototyping and hobbyist applications. The noise level is low enough for most analog reads. Would buy again for future projects.
Anonymous
Mar 16, 2026
Rating: 5/5
Perfect for my solar inverter project
This sensor works flawlessly with my Arduino setup. The output is stable and the isolation gives me peace of mind when dealing with higher currents. Highly recommended for DIY power monitoring.
Anonymous
Mar 14, 2026
Rating: 5/5
Easy to integrate
Very straightforward to use. The datasheet provided clear calibration instructions. It handles the 35A load without getting too hot. Great value for the price.
Anonymous
Mar 10, 2026
Rating: 5/5
Exceeded expectations
I was worried about the accuracy at lower currents, but it performs well even down to 1A. The galvanic isolation is a must-have feature that this module delivers perfectly.
Anonymous
Mar 03, 2026
Rating: 5/5
Reliable overcurrent detection
We used these in a batch of motor controllers. The response time is incredibly fast, triggering our protection circuit immediately during short circuit tests. No failures so far.
Anonymous
Mar 03, 2026
Rating: 4/5
Good accuracy, fast shipping
Measured values are very close to my multimeter readings. The only minor issue is that the pin headers were not included, so I had to solder my own. Otherwise, a solid module.
Q: Is the 5V supply strictly required or will 3.3V work?
A: While the sensor may function at 3.3V, it is designed and calibrated for a 5V supply. Using 5V ensures the full dynamic range and specified accuracy.
Q: Does the package include screw terminals for high current connections?
A: No, the module comes with bare PCB pads for the high-current path to allow for direct soldering of heavy gauge wires or custom busbars. Screw terminals are not included.
Q: What is the maximum safe current before damage occurs?
A: The rated continuous current is 35A. It can handle brief surges slightly above this, but for long-term reliability, we recommend staying within the 35A limit.
Q: Can this sensor measure AC current as well as DC?
A: Absolutely. Since it uses Hall Effect technology, it is capable of measuring both AC and DC current accurately within its rated range.
Q: Does this module output a linear voltage proportional to the current?
A: Yes, the WCS1800 provides a linear analog voltage output typically centered at VCC/2 when no current is flowing, increasing or decreasing based on current direction and magnitude.
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