Sanghvi Electronics

The LF1005‑S is a high-precision, closed-loop Hall-effect current transducer designed for AC, DC, and pulsed current measurement in industrial and power electronics applications.

Key Features:

• Galvanic isolation between primary and secondary circuits for safe monitoring of high currents.

• Closed-loop Hall-effect sensing ensures high accuracy, fast response, and excellent linearity.

• Suitable for motor drives, power converters, UPS systems, and renewable energy inverters.

Electrical Specifications:

Environmental & Safety Ratings:

• Operating Temperature: –40 °C to +85 °C

• Storage Temperature: –50 °C to +90 °C

• Isolation Voltage: Up to 12 kV RMS (primary-secondary) depending on model

• Creepage/Clearance: Designed for reinforced insulation and industrial safety standards (IEC 61010‑1 / EN 50178)

Mechanical / Mounting:

• Mounting Type: Through-hole / panel mount, primary conductor passes through central aperture.

• Housing: Insulated plastic, UL94-V0 rated

• Mass: ~500–700 g depending on model

• Secondary Connection: Cable or connector (SP16/SP36 differ in connector type)

Functional Highlights:

• High linearity and accuracy over wide current ranges

• Fast response suitable for dynamic current measurement

• Galvanic isolation ensures safe measurement in high-voltage circuits

• Can handle rapid current transients (high di/dt)

• Works with AC, DC, and pulsed currents

Typical Applications:

• Variable Frequency Drives (VFDs) and servo drives

• UPS and battery-based power systems

• Power converters, inverters, and welding equipment

• Renewable energy systems and traction applications

The LF 310‑S is a current transducer based on closed‑loop Hall‑effect (compensated) technology. It provides galvanically isolated measurement of AC, DC, and pulsed currents. The device is typically panel‑mounted with a through‑hole aperture for the primary conductor and produces a current output proportional to the measured current.

This type of transducer is widely used in industrial control systems, power supplies, motor drives, inverters, UPS units, and energy monitoring equipment.

Key Technical Specifications:
Operating Principle:

• Closed‑Loop Hall‑Effect: Uses an internal magnetic core and Hall sensor with a feedback compensation loop to provide high linearity, low offset drift, and stable measurement across temperature.

• Galvanic Isolation: Primary and secondary circuits are electrically isolated, improving safety and protecting measurement electronics from high voltages.

• Current Output: The sensor outputs a secondary current proportional to the primary current, suitable for direct interfacing with measurement systems that accept a current input (e.g., mA interface stages).

Performance Characteristics

Accuracy & Linearity:

• Tight overall accuracy (~0.2 % of I_PN) and very low offset drift over temperature provide precise measurements even in demanding environments.

Bandwidth:

• Typical frequency response up to ~100 kHz (–3 dB), allowing faithful tracking of fast current changes and high‑frequency components.

Fast Dynamic Response:

• Sub‑microsecond reaction time makes the LF 310‑S suitable for PWM‑driven systems and pulsed current applications.

Physical & Installation Notes:

• Aperture Size: Approximately 20 mm through‑hole to allow primary conductor/cable insertion.

• Panel Mounting: Rugged mechanical design intended for secure panel installation.

• Connectors: Versions may use standard connectors (Molex, JST), depending on suffix (e.g., SP10, SP16, SP20).

Typical Applications:

• Industrial Drives & Motor Controllers

• Power Supplies & UPS Systems

• Renewable Energy Inverters & Solar Power Systems

• Battery Management & DC‑DC Converters

• Test & Measurement Equipment

• Welding Power Sources

The HAT 500‑S is an open‑loop Hall‑effect current transducer designed for non‑contact measurement of AC, DC, and pulsed currents up to 500 A RMS. It provides a voltage output proportional to the primary current with galvanic isolation between the high‑power primary circuit and the secondary electronics, making it suitable for industrial power sensing and control applications.


 Key Technical Specifications:

Open‑loop Hall effect:

• A magnetic Hall sensor detects the magnetic field created by current through the primary conductor.

• The sensor produces a proportional voltage output without a closed compensation loop (simpler and lower cost than closed‑loop designs).

• Galvanic isolation separates the high‑power current path from the measurement side to protect downstream elec

• Operating Temperature: −40 °C to +105 °C allowing use in demanding industrial environments.

• Isolation & Insulation: High insulation resistance (>1000 MΩ at 500 V DC) improves safety against high‑voltage stress.

• Housing: Insulating plastic case recognized per UL 94‑V0, ensuring flame retardance.

• Standards Compliance: Designed to meet industrial safety standards such as EN 50178 and UL 508 (depending on region/version).

Typical Applications:

• DC and AC motor drives

• Switched‑mode power supplies (SMPS)

• Uninterruptible Power Supplies (UPS)

• Battery‑powered systems and chargers

• Industrial automation current monitoring

• Welding power supplies

• Variable‑frequency inverters and power converters