The BMT AC CURRENT SENSOR CLAMP-30A is a compact, non-invasive AC current sensing solution designed for safe and accurate measurement of alternating current without the need to cut or disconnect wires. Based on current transformer (CT) technology, this sensor converts high AC current flowing through a conductor into a small, measurable voltage signal that can be easily read by microcontrollers and data acquisition systems.
With a 0-30A AC input range and a 0-1V analog voltage output, this current clamp is ideal for energy monitoring, power measurement, load detection, and home or building automation projects. The built-in burden resistor eliminates the need for additional external components, allowing direct connection to analog input pins on platforms such as Arduino, ESP32, Raspberry Pi (with ADC), STM32, and other embedded controllers.
The split-core clamp design allows the sensor to be installed around an existing live wire without electrical contact, ensuring high safety and ease of installation. Its 13×13mm jaw opening makes it suitable for most household and light industrial conductors, while the robust insulation provides reliable operation in demanding environments.
Thanks to its low non-linearity, wide operating temperature range, and strong dielectric isolation, the BMT AC CURRENT SENSOR CLAMP-30A is well suited for long-term monitoring applications in residential, commercial, and DIY energy projects.
Features
- Non-invasive split-core design - no need to cut wires
- Measures AC current from 0 to 30A
- 0-1V analog voltage output for easy MCU interfacing
- Built-in burden resistor for direct voltage measurement
- High electrical isolation for safe operation
- Compact 13×13mm clamp jaw for easy installation
- Low non-linearity for accurate current measurement
- Compatible with Arduino, ESP32, STM32, PLCs, and other controllers
- Ideal for energy monitoring and power analysis projects
Specifications
Electrical Characteristics
- Input Current Range: 0 ~ 30A AC
- Output Mode: 0 ~ 1V Analog Voltage
- Non-Linearity: 1%
- Turn Ratio: 1800 : 1
- Built-in Sample Resistance: 62
- Resistance Grade: Grade B
Environmental
- Operating Temperature: -25 C to +70 C
- Dielectric Strength (Shell to Output): 1000V AC / 1 minute @ 5mA
Mechanical
- Clamp Jaw Size: 13 × 13 mm
- Lead Length: 1 meter
- Sensor Type: Split-core current transformer
- Installation: Clip-on (non-invasive)
Applications
- Home and building energy monitoring
- Smart power meters and energy loggers
- Load detection and current sensing
- Solar and inverter monitoring systems
- Industrial automation and diagnostics
- DIY electronics and IoT power projects
What's in the box
1 x BMT AC CURRENT SENSOR CLAMP-30A - Non-Invasive AC Current Sensor Clamp (13×13mm Jaw)
