Open Loop Hall Effect Current Sensor, AC 50A to 1500A

SUCH open loop Hall effect current sensor, with a measuring range of 50–1500A and available in 20mm, 40mm, and 55mm aperture sizes, offers DC 4–20mA output and operates on 12/24V DC power. It is designed for isolated AC current conversion using Hall effect principles, ensuring compatibility with AD, DSP, PLC, and other data acquisition systems. Known for its fast response time, high accuracy, and excellent linearity, this sensor is widely used in applications such as battery monitoring, solar and inverter systems, DC motor drives, welding, UPS, and VFDs.

Feature

• Versatile Signal Compatibility: This open loop Hall effect current sensor supports the isolated conversion of AC, making it suitable for complex and dynamic signal environments.
• Hall Effect-Based Output Conversion: Utilizes the Hall effect principle to convert current signals into standard output formats that can be directly interfaced with AD converters, DSPs, PLCs, and secondary instrumentation.
• Broad Application Range: Ideal for current monitoring in battery systems, inverter power supplies, solar energy management, DC panels, motor drives, electroplating and welding systems, variable frequency drives (VFDs), UPS, and servo control applications.
• Fast Response Time: Delivers rapid signal response, ensuring real-time feedback and precise current control in dynamic load conditions.
• Wide Measurement Range with High Accuracy: Covers a broad current detection span from AC 50A to 1500A with excellent precision, enabling reliable performance across light and heavy loads.
• Strong Overload and Interference Resistance: AC current sensor engineered with robust overload tolerance and strong anti-interference capability, making it dependable in harsh electrical environments.
• Good Linearity and Signal Stability: Provides a linear output with minimal distortion, ensuring stable and accurate current signal acquisition and transmission.

Dimension (Unit:mm)

Wiring Diagram

High Current Voltage Monitoring Program

Caveat

1. When using Hall sensors, to achieve better dynamic characteristics and sensitivity, it is essential to ensure proper coupling between the primary and secondary coils. It is recommended to use a single wire that fully fills the wire passage holes in the Hall sensor module.
2. When using Hall sensors, the best measurement accuracy is achieved at the rated input current value. When the measured current is significantly below the rated value, to achieve the best accuracy, the primary side can use multiple turns, i.e., IPNP = rated ampere-turns. Additionally, the temperature of the primary feed line should not exceed 80°C.
3. The auxiliary power supply for the Hall current sensor during normal operation should not exceed ±20% of the rated value, and the ripple should not exceed ±1%.  
4. The Hall current sensor must not be dropped from a height exceeding 1 meter during installation and use.  
5. The zero point and full-scale adjustment potentiometers should not be adjusted.  
6. The auxiliary power supply must be configured separately, and the positive and negative terminals of the power supply must not be reversed.  
7. It is recommended to use shielded cables for the output signal lines.