HTA 1000-S/SP16 High-Precision Open-Loop Hall-Effect Current Sensor

HTA 1000-S/SP16 Product Overview

The HTA 1000-S/SP16 is a high-performance current sensor from LEM, a world-leading provider of current and voltage measurement solutions. It employs open-loop Hall-effect technology and is specifically designed for accurate measurement of AC and DC currents up to 1000 A.

Whether in industrial automation, renewable energy, rail transportation, or power supply management, the HTA 1000-S/SP16 delivers stable, precise, and reliable current measurement for your systems.

HTA 1000-S/SP16 Key Advantages

High Accuracy You Can Trust

The HTA 1000-S/SP16 offers an accuracy of 1%, capturing even the slightest current variations with confidence. Its instantaneous voltage output ranges from ±4 V to 10 V, ensuring real-time signal fidelity. For equipment such as machine tools, elevators, and robots that demand fast response to current changes, the more accurate and prompt the feedback, the smoother and more reliable the operation.

Wide Bandwidth for Excellent Dynamic Response

With a bandwidth of DC … 50 kHz, the sensor can accurately measure both DC and AC signals up to 50 kHz. Whether it is a stable DC-link current or fast-varying currents in high-frequency switching power supplies, the HTA 1000S/SP16 handles them with ease.

Mature Open-Loop Hall-Effect Technology

The proven open-loop Hall-effect design achieves high measurement accuracy while simplifying circuit architecture and enhancing reliability. This technology has been widely adopted in industrial, railway, energy/automation, and automotive applications.

Wide Temperature Range for Harsh Environments

The sensor operates over a temperature range of -25 °C to +85 °C, maintaining consistent performance in freezing winter conditions as well as in hot industrial workshops.

Compact Design, Flexible Mounting

The panel-mount package is compact and easy to integrate into various systems. The circular aperture allows convenient insertion of busbars or cables. Multiple mounting options are available, including contact-free, busbar, or clamping configurations to suit different installation needs.

HTA 1000-S/SP16 Technical Specifications

HTA 1000-S/SP16 Wide Range of Applications

Industrial Drives and Control

Ideal for elevators, escalators, cranes, robots, machine tools (printing, textile, plastics), pumps, and steel mills. The sensor measures varying currents in real time and feeds them back to the control unit, ensuring precise and smooth equipment operation.

Renewable Energy

In solar, wind, hydro, fuel-cell, and geothermal power systems, the HTA 1000-S/SP16 provides critical current feedback to power electronics, enabling more efficient energy conversion and management.

Power Supplies and UPS Systems

Suitable for uninterruptible power supplies (UPS), switch-mode power supplies (SMPS), telecom power supplies, battery chargers, and more. By measuring output current, the sensor helps ensure stable power delivery and assists in smooth switching during faults.

Rail Transportation

In railway applications, the sensor can be used for on-board energy metering and wayside equipment monitoring (point machines, platform doors, signalling systems, etc.). Its wide temperature range, high insulation voltage, and EMC design meet the requirements of various national railway standards.

Process Automation and Condition Monitoring

By monitoring load input current, the sensor enables equipment condition monitoring, parameter adjustment, and fault early warning, providing an efficient and reliable solution for process control.

Why Choose the HTA 1000-S/SP16?

 LEM brand assurance – A globally recognised expert in current and voltage measurement, with products widely used in industrial, railway, energy/automation, and automotive sectors

1000 A high current capability – Covers the vast majority of industrial current measurement needs

 AC and DC in one – Measures both AC and DC signals, versatile and cost-effective

Accuracy + bandwidth – The perfect combination of 1% accuracy and 50 kHz bandwidth

 Wide operating temperature – -25 °C to +85 °C for harsh environments

 Flexible installation – Panel-mount design with multiple mounting options