Open-Loop Hall Current Sensor HKC-BS5/BR5 Series for AC Variable Speed Drives and DC Motor Drives

The HKC-BS5/BR5 series open-loop Hall effect current sensor is based on the Hall effect measurement principle, providing electrical isolation between the primary and secondary circuits. It accurately measures DC, AC, or pulse currents. The product features a detachable design for easy installation and offers high accuracy. It is widely used in welding power supplies, battery-powered applications, AC variable speed drives, servo motor drives, DC motor drive static converters, switching power supplies (SMPS), and UPS uninterruptible power supplies.

Features

• Measuring principle – open-loop Hall effect

• Measurement type – DC / AC / pulse

• Isolation – electrical isolation between primary and secondary

• Mounting method – detachable

• Accuracy – high accuracy

• Easy installation

Applications:

• Power supplies for welding applications
• Battery supplied applications
• AC variable speed drives and servo motor drives
• Static converters for DC motor drives
• Switched mode power supplies (SMPS)
• Uninterrupted power supplies (UPS)

Directions for use

• When the current will be measured goes through a sensor, the voltage will be measured at the output end.(Note: The false wiring may result in the damage of the sensor)
• Custom design in the different rated input current and the output voltage are available.

ELECTRICAL DATA:

Notes: Product specifications can be customized

FAQ

Q: What is the working principle of an open-loop Hall effect current sensor?

A: The open-loop Hall effect current sensor works based on the Hall effect principle. The magnetic field generated by the measured current is detected by the Hall element, which outputs a voltage signal proportional to the magnetic field strength. Electrical isolation between the primary and secondary is achieved through magnetic circuit coupling, requiring no direct electrical connection, ensuring safety and reliability.

Q: What is the difference between open-loop and closed-loop Hall current sensors?

A: Open-loop sensors directly amplify and output the Hall voltage. They offer simple structure, lower cost, and fast response, suitable for general industrial measurement. Closed-loop sensors use a compensation winding to generate an opposing magnetic field, offering higher accuracy and lower temperature drift. The HKC-BS5/BR5 series open-loop design offers better cost-performance, suitable for most industrial applications.

Q: What are the advantages of the detachable design?

A: The detachable design facilitates sensor installation, maintenance, and replacement. No complex tools are required for assembly and disassembly, improving on-site installation efficiency and maintenance convenience.