HAZ 4000-SB

Current Sensors Overview

The HAZ 4000-SB is an open-loop Hall effect current transducer designed for high-current industrial applications. It features a nominal primary current of 4000 A and supports AC, DC, and pulsed measurements with a measuring accuracy of 1%. The device utilizes a dual bipolar power supply ranging from -15 V to +15 V and provides an instantaneous secondary signal output of 4-20 mA. Key electrical parameters include a response time of 10 µs, a maximum supply current of 30 mA, and an operating temperature range of -25 °C to 85 °C.

Current Sensors Feature Summary

• Open-loop Hall effect technology for precise AC, DC, and pulsed current measurement
• Compact chassis-mount design suitable for space-constrained industrial environments
• Instantaneous 4-20 mA analog output signal for direct integration into control systems

Current Sensors Applications

• Substation monitoring and protection systems
• Industrial automation drive controls
• High-power inverter and converter feedback loops

Current Sensors Procurement Notes

Verify the specific suffix (e.g., SB vs SBI) against the required connector type and output specification. Confirm that the application environment falls within the specified -25 °C to 85 °C operating temperature range. Ensure the power supply provides a stable bipolar voltage between -15 V and +15 V to maintain the stated 1% accuracy. Check mechanical mounting requirements for chassis installation compatibility.

Current Sensors Selection Notes

Select this model when a robust solution for measuring currents up to 4000 A is required. The open-loop architecture offers a fast 10 µs response time, making it suitable for dynamic load conditions. Consider the 4-20 mA output if isolation from the primary circuit is needed without complex signal conditioning. Evaluate the chassis mount form factor against available panel space in the target equipment.

Current Sensors Part Context

This component belongs to the LEM HAZ series, which specializes in high-current transducers for demanding industrial settings. The series covers nominal values from 4000 A to 20000 A, providing scalable solutions for heavy-duty power electronics. The HAZ 4000-SB represents the entry point for this high-capacity range, balancing performance with standard industrial interface protocols.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.