Sanghvi Electronics

We are engaged in offering ES1000 Current Transducer to our clients. Our range of all products is widely appreciated by our clients.

The LF505‑S is a closed‑loop Hall‑effect current transducer designed for electronic measurement of DC, AC, and pulsed currents, providing galvanic isolation between the high‑power primary circuit and the low‑power secondary measurement circuit. It is well suited for applications in motor drives, power converters, battery systems, UPS units, welding power supplies, and other industrial power electronics.

Key Technical Specifications 

• Primary nominal RMS current (Ipn): 500 A — the rated continuous current capability.

• Primary current measuring range (Ip): 0 … ±800 A — operational bidirectional range.

• Sensing type: Closed‑loop compensated Hall effect — active flux compensation for high accuracy and linearity.

• Turns ratio (Kn): 1 : 5000 (primary to secondary).

Secondary & Output

• Secondary nominal RMS current (Isn): 100 mA — proportional current output.

• Output type: Current output that is typically converted to a measurable voltage across a burden resistor in the secondary circuit.

Supply & Performance

• Supply voltage (Vc): ±15 V to ±24 V DC (±5 %) bipolar supply.

• Accuracy: ~±0.6 % @ nominal current (Ta = 25 °C).

• Linearity error: < 0.1 %.

• Response time: Typically < 1 µs to 90 % of final value.

• Frequency bandwidth: DC … ~100 kHz (–1 dB point).

• di/dt capability: Can accurately follow fast current changes (e.g., > 100 A/µs).

Environmental & Safety Ratings

• Operating temperature range: –40 °C … +70 °C (typically).

• Storage temperature: –40 °C … +85 °C.

• Isolation & insulation: Galvanic isolation between primary and secondary circuits, insulated plastic case recognized to UL 94‑V0.

• Insulation test: Rated to standard AC insulation tests (e.g., 3 kV RMS @ 50 Hz, 1 min).

Functional Highlights

• Hall‑effect closed‑loop sensing ensures excellent accuracy and wide dynamic range.

• Low temperature drift and excellent linearity maintain reliable measurement across industrial conditions.

• Fast response and wide bandwidth support monitoring of dynamic and pulsed current profiles.

• High immunity to external interference and no insertion losses.

Typical Applications

• AC variable speed and servo motor drives.

• Static converters for DC motor drives.

• Battery‑powered systems and UPS units.

• Switched‑mode power supplies (SMPS) and welding power supplies.

• Industrial current monitoring and protection systems.

We are engaged in offering Csnk500M Current Transducer to our clients. Our range of all products is widely appreciated by our clients.

We are engaged in offering Dhab S/33 Current Transducer to our clients. Our range of all products is widely appreciated by our clients.

LEM current Transducer LAH100-P LEM CT  LEM SWISS We are engaged in offering Lah100-P Lem Current Transducer to our clients. Our range of all products is widely appreciated by our clients.

We are engaged in offering La200-P Lem Current Transducer to our clients. Our range of all products is widely appreciated by our clients.

We are engaged in offering HAS600-P LEM Current Transducer to our clients. Our range of all products is widely appreciated by our clients.

LEM current Transducer LT1005-T LEM CT Used for the electronics measurement of current DC AC pulsed with galvanic isolation between circuit

LT1005-S LEM current Transducer LT series LEM Current Transducer used for dc ac pulsed with galvanic isolation between circuit

The LF 1005‑S/SP36 is a closed‑loop Hall‑effect current transducer used for accurate electronic measurement of AC, DC, and pulsed currents. It features galvanic isolation between the high‑current primary circuit and the low‑power secondary measurement circuit, making it suitable for industrial power electronics, control, and protection systems.

We are engaged in offering Lf2010-S/Sp6 Current Transducer to our clients. Our range of all products is widely appreciated by our clients.

We are engaged in offering Esm2000-9983 Current Transducer to our clients. Our range of all products is widely appreciated by our clients.

We are engaged in offering Hta400-S Lem Current Transducer to our clients. Our range of all products is widely appreciated by our clients.

LEM HAS Panel Mount Current Transducers provide a reliable solution for electronic measurement of DC, AC, and pulsed currents while ensuring galvanic isolation between the primary and secondary circuits. Utilizing open-loop Hall effect technology, the compact LEM HAS sensors support a wide measurement range from 50A to 600A, making these transducers suitable for various industrial applications. The HAS series features a voltage output proportional to the measured current, with excellent linearity and low offset drift over temperature. With an instantaneous voltage output of ±4V and a bipolar power supply requirement of ±15V, HAS sensors deliver accurate and efficient current sensing. Additionally, an extended bandwidth of up to 50kHz enables precise monitoring of fast-changing current signals.

The LF505‑S/SP13 is a closed‑loop Hall‑effect current transducer from LEM, engineered to measure high AC and DC currents with galvanic isolation between the primary power circuit and the secondary measurement circuitry. It’s commonly used in industrial power monitoring, drive systems, renewable energy converters, and similar applications.

Operating Principle

• Hall Effect Technology: Uses a closed‑loop compensated Hall effect sensor. The magnetic field generated by the primary current is sensed by the Hall element and converted into a proportional output signal via feedback control for high accuracy and linearity.

• Closed‑Loop Measurement: Ensures superior dynamic response, low offset, and reduced temperature drift compared to open‑loop designs.

🧠 Overview

The LF 510‑S series transducers are closed‑loop Hall‑effect current sensors that provide galvanically isolated current measurement with excellent accuracy and fast dynamic response. These sensors are designed for panel‑mount installation in industrial power systems and are suitable for a wide range of applications where precise current measurement is necessary.

🔌 Core Technical Specifications

Primary Characteristics

• Nominal Primary Current (I_PN): 500 A RMS — continuous rated primary current capacity.

• Measuring Range: Approximately ±800 A (DC/AC), allowing measurement of currents beyond the nominal rating.

• Output Type: Current output, typically 100 mA nominal for rated primary current.

• Technology: Closed‑loop Hall‑effect — provides high accuracy, linearity, and low offset drift over temperature.

• Accuracy: Approximately ±0.6 % of nominal current under specified conditions.

• Response Time: Fast response (~500 ns typical) for dynamic current measurement.

Electrical Supply & Interface

• Supply Voltage: External bipolar DC supply, typically ±14.25 V to ±25.2 V or similar range.

• Measured Signal: AC, DC, and pulsed current measurement with current output proportional to primary current.

🌡️ Environmental & Mechanical

• Operating Temperature Range: Typically –40 °C to +85 °C — suitable for industrial usage.

• Mounting: Designed for panel mounting; robust plastic housing with a current aperture for a conductor to pass through.

• Aperture: Typical sizes include 30 mm diameter or variations for primary conductor placement.

🔒 Isolation & Safety

• Galvanic Isolation: Provides reinforced electrical isolation between the primary current path and the secondary measurement circuit, enhancing safety and reducing interference.

• Compliance: Often meets major safety and isolation standards (e.g., IEC 61010‑1, UL 508), ensuring industrial safety.

🛠️ Functional Characteristics

Closed‑Loop Hall‑Effect Design

• Reduces offset errors and improves accuracy compared to open‑loop Hall designs.

• High immunity to external magnetic disturbances and noise.

Performance

• Excellent linearity over wide current ranges.

• Low temperature drift across operational range.

📌 Typical Applications

Ideal for precision current measurement in:

• Variable frequency drives (VFDs) and motor control inverters

• Uninterruptible power supplies (UPS) and battery‑powered systems

• Power supplies and welders

• Renewable energy inverters and chargers

• Industrial automation and monitoring equipment                                                                                                 

The LF 1005‑S/SP21 is a closed‑loop Hall‑effect current transducer from LEM’s LF1005 series, designed for accurate measurement of high AC, DC, or pulsed currents with galvanic isolation between the high‑current primary path and the low‑power measurement circuitry. It’s widely used in industrial power systems, motor control, inverters, power supplies, and energy monitoring applications.

• HTB300-P/SP11 is a Hall-effect current transducer manufactured by LEM.

• It is designed for accurate measurement of AC, DC, and pulsed currents.

• Provides galvanic isolation between:

  • Primary circuit (high power)

  • Secondary circuit (measurement/control electronics)

• Part of the HTB series, covering current ranges from 50 A to 400 A.

Operating Principle

• Uses open-loop Hall Effect technology:

  • Magnetic field generated by primary current is sensed

  • Converted into a proportional voltage output

• No direct electrical connection between input and output → safe isolation

Key Features

• Nominal current (IPN): 300 A

• Measurement range: up to ±600 A

• Output signal: Analog voltage (±4 V at nominal current)

• High isolation voltage: 2.5 kV

• Wide supply voltage: ±12 V to ±15 V

• Low power consumption

• Fast response time (few microseconds range typical for HTB series)

• Compact PCB-mounted design

• High immunity to electromagnetic interference

Electrical Characteristics Primary Side

• Nominal current (IPN): 300 A

• Measuring range (IP): ±600 A

• Suitable for:

  • DC

  • AC

  • Pulsed currents

Secondary Side

• Output voltage (Vout): ±4 V at IPN

• Output resistance: ~100 Ω

• Supply voltage (Vc): ±12 V to ±15 V

• Current consumption: < ±15 mA

Accuracy & Performance

• Accuracy: ~±1%

• Linearity: very good (typical for Hall sensors)

• Bandwidth: suitable for dynamic current measurement (DC to tens of kHz range typical)

• Response time: ~3 µs (typical for HTB series)

5. Isolation & Safety

• Isolation test voltage: 2.5 kV RMS

• Isolation resistance: >500 MΩ @ 500 V DC

• Ensures safe operation in high-voltage power circuits

6. Thermal & Environmental Data

• Operating temperature:

  • Typically −40°C to +80°C

• Low temperature drift

• Stable performance in industrial environments

7. Mechanical Characteristics

• Mounting: PCB mounting

• Aperture (conductor hole): ~16 mm diameter

• Compact size: ~4.3 cm² footprint

• Optional busbar connection (depending on variant)

8. Applications

Widely used in power electronics systems such as:

• AC variable speed drives / motor drives

• UPS systems

• Switched Mode Power Supplies (SMPS)

• Solar inverters & renewable energy systems

• Welding equipment

• Battery-powered systems

The LF1010‑S/SP16 is part of the LEM LF1010 family of current transducers. It’s a closed‑loop Hall‑effect current sensor that allows accurate measurement of electrical current in power systems while maintaining galvanic isolation between the high‑current primary conductor and the low‑voltage measurement circuitry.

This type of transducer is widely used in power electronics, industrial drives, energy metering, renewable energy systems, and protection circuits.

Key Technical Specifications 

• Nominal Primary Current (I_PN): 1000 A RMS — continuous rated primary current.

• Measuring Range: Up to approximately 2100 A (primary rms) — allowing measurement of currents beyond the nominal rating.

• Output Type: Current output, proportional to the measured primary current.

• Secondary Nominal Signal: Instantaneous output around 200 mA (rms) for the rated primary current.

• Accuracy: ±0.4 % of rated primary current under specified conditions.

Electrical Characteristics

• Supply Voltage: External bipolar DC, typically ±15 V to ±24 V.

• Technology: Closed‑loop compensated — high linearity with minimal drift over temperature.

• Primary Signal Types: Suitable for AC, DC, and pulsed currents.

• Response Time / Bandwidth: Fast dynamic response and wide bandwidth (typical small‑signal bandwidth around ~200 kHz) to capture transient current changes accurately.

 
Environmental & Mechanical

• Operating Temperature Range: –40 °C to +85 °C — robust for industrial environments.

• Mounting: Designed for panel mounting configuration.

• Technology Benefits: Closed‑loop design provides excellent offset and linearity performance over temperature and long‑term use.

Isolation & Safety

• Provides galvanic isolation between the primary (high‑current) path and the secondary (measurement) circuit, which enhances safety and protects downstream electronics.

• Suitable for systems requiring IEC/EN compliance in industrial power measurement applications.

Typical Applications:

Ideal for use in:
• High‑power inverters and motor drives
• Renewable energy systems (e.g., solar and wind)
• UPS and power supply systems
• Energy metering and power monitoring
• Overcurrent detection, protection circuits, and diagnostic instrumentation                                                                                                                                                                                   

The HAT 1000‑S is an open‑loop Hall‑effect current transducer that converts a large primary current into a proportional analog voltage output, while providing galvanic isolation between the high‑current circuit and the measurement/control electronics. It’s built for industrial environments with rugged performance and stable output.

Operating Principle

• Hall Effect Technology (Open‑Loop): Measures the magnetic field around the conductor carrying current using a Hall sensor, then converts it into a proportional electrical signal.

• Enables measurement of DC, AC, and pulsed currents without direct electrical connection to the primary circuit.

• Galvanic Isolation: Primary (high current) and secondary (output/supply) circuits are electrically isolated, improving safety and noise immunity.

�� Product Overview

The HAX 1000‑S is a compact, open‑loop Hall effect current transducer that measures large currents (up to ~1000 A RMS nominal) and provides an isolated analogue voltage output proportional to the sensed current. It ensures galvanic isolation between the high‑power primary circuit and the low‑power measurement/control electronics, making it suitable for industrial environments.

�� Operating Principle

• Hall Effect (Open‑Loop): A Hall sensor detects the magnetic field produced by the primary current flowing through the aperture, converting it into an electrical signal.

• Bidirectional Measurement: Capable of measuring both positive and negative currents (AC and DC).

• Galvanic Isolation: Electrical isolation between the primary current path and the secondary output/supply circuitry enhances safety and noise immunity.

• Analogue Output: Produces a proportional voltage output that can be read by ADCs, controllers, or monitoring systems.

⚙️ Electrical Specifications �� Performance & Accuracy

• Accuracy: ±1 % of nominal current (typically measured at 25 °C, excluding offset)

• Linearity: ≤ ±1 % over ±IPN range

• Offset Voltage:

  • Electrical offset: < ±20 mV

  • Hysteresis offset: < ±30 mV after excursion

• Temperature Drift:

  • Offset drift: < ±1 mV/K

  • Gain temperature coefficient: < ±0.1 %/K |

��️ Mechanical & Environmental

• Operating Temperature: Typically –25 °C to +85 °C (some specifications extend to –40 °C)

• Mounting: Panel mount or chassis installation

• Number of Channels: Single channel transducer

• Construction: Plastic housing with UL 94‑V0 rated case (galvanically isolated aperture and electronics)

��️ Typical Applications

The HAX 1000‑S is ideal for use in industrial and power electronics systems including:
✔ Variable speed drives and servo drives
✔ Switched‑mode power supplies (SMPS)
✔ Uninterruptible power supplies (UPS)
✔ Battery‑powered systems and renewable energy inverters
✔ Welding power supplies and power converters
✔ Motor controllers and current monitoring systems

The HAX 2500‑S is a compact open‑loop Hall effect current transducer from LEM’s HAX series that provides an analogue voltage output proportional to the primary current while offering high galvanic isolation between the primary (power) and secondary (measurement) circuits. It’s designed for industrial environments where robust, accurate current sensing of AC, DC, and pulsed currents is required.

• Principle of operation: Hall‑effect open‑loop sensor detects magnetic field from current flowing through the aperture and produces an isolated electrical signal.

• Isolation: High isolation between primary and secondary circuits improves measurement safety and noise immunity.

• Output: Instantaneous analogue output voltage proportional to current.

The HAX 1500‑S is a compact Hall‑effect open‑loop current transducer that provides galvanic isolation between a primary current conductor and the measurement electronics. It converts high primary current into a proportional analogue voltage output suitable for control, monitoring, or data‑acquisition systems in industrial power conversion and motor control applications.

• Measuring principle: Hall effect with open‑loop architecture.

• Primary current type: AC, DC, and pulsed currents.

• Isolation: Electrical isolation between primary and secondary circuits.

The HAX 1000‑S is a compact, open‑loop Hall effect current transducer that measures large currents (up to ~1000 A RMS nominal) and provides an isolated analogue voltage output proportional to the sensed current. It ensures galvanic isolation between the high‑power primary circuit and the low‑power measurement/control electronics, making it suitable for industrial environments.

Operating Principle

• Hall Effect (Open‑Loop): A Hall sensor detects the magnetic field produced by the primary current flowing through the aperture, converting it into an electrical signal.

• Bidirectional Measurement: Capable of measuring both positive and negative currents (AC and DC).

• Galvanic Isolation: Electrical isolation between the primary current path and the secondary output/supply circuitry enhances safety and noise immunity.

• Analogue Output: Produces a proportional voltage output that can be read by ADCs, controllers, or monitoring systems.