LTC1000-S/SP26;LTC 1000-S/SP26

LEM LTC1000-S/SP26 High-Precision Closed-Loop Hall Effect Current Sensor – Reliable Current Measurement for Your High-Power Applications

LTC1000-S/SP26 Product Overview

The LEM LTC1000-S/SP26 is a high-performance closed-loop Hall effect current sensor from the LTC1000 series by LEM (Switzerland), specifically designed for high-accuracy, high-current measurement. The sensor uses a non-contact measurement principle and can precisely measure DC, AC, and pulsed currents while providing galvanic isolation between the primary and secondary circuits. Ideal for industrial automation, renewable energy power generation, power electronics, rail transportation, and more, the LTC1000-S/SP26 leverages LEM’s 40+ years of sensor expertise to deliver outstanding stability and reliability. It has become the preferred choice for numerous benchmark projects and OEM manufacturers worldwide.

LTC1000-S/SP26 Key Features & Technical Highlights

High Accuracy, Exceptional Stability
The LTC1000-S/SP26 uses advanced fluxgate closed-loop Hall technology, achieving measurement accuracy as high as ±0.2% to ±0.5%. When monitoring 100A, the error is equivalent to only two small bottles of water. Over a wide temperature range from -40°C to +85°C, the sensor maintains excellent linearity and low temperature drift, ensuring long-term measurement stability. After replacing traditional Hall sensors with the LTC1000-S/SP26, a new energy vehicle manufacturer reduced SOC estimation error in its battery management system from 3% to just 0.8%.

Ultra-Fast Response, Capture Transient Signals Accurately
With a response time ≤1 µs, the sensor tracks rapid current changes and captures transient harmonics and anomalies. Its bandwidth covers DC to over 200 kHz, making it ideal for applications demanding high dynamic performance, such as variable frequency drives, servo drives, and photovoltaic inverters.

High Protection Class, Operates in Harsh Environments
The LTC1000-S/SP26 is rated IP67, providing excellent dust and water resistance. It offers 5kV galvanic isolation between primary and secondary circuits and meets 1200V insulation voltage requirements. It operates reliably in humid, dusty, salty, and high-EMI environments. Over a working temperature range of -40°C to +85°C, it maintains stable output, seamlessly adapting to bitter cold northern wind farms or hot, humid southern factories.

LTC1000-S/SP26 Robust Electrical Specifications

Rated measuring current: 1000A ARMS, maximum measuring range up to 2400A

Supply voltage: ±15V to 24V dual power supply

Output signal: Current output type, secondary rated output 200mA, compatible with various measurement and protection systems

Creepage distance and clearance: Compliant with high safety standards for high-voltage applications

Insulation test voltage: 12kV RMS / 50Hz / 1 minute, ensuring safe isolation in high-voltage systems

LTC1000-S/SP26 Easy Installation, Flexible Adaptation
The LTC1000-S/SP26 features a compact modular design and supports horizontal or vertical mounting. A busbar or base can be included or omitted as needed. The primary conductor aperture is 42mm circular or 42×12mm rectangular, accommodating high-current conductors or busbars. The secondary connection offers two fastening options: four M5 threaded rods or four Faston (6.3×0.8mm) quick-connect terminals, greatly improving assembly efficiency and wiring convenience.

LTC1000-S/SP26 Typical Applications

Industrial Automation & Motor Drives
In variable frequency drives, servo motors, welding robots, CNC machines, and more, the LTC1000-S/SP26 delivers precise phase current monitoring, significantly improving motor control system efficiency and reliability. After upgrading, a frequency drive manufacturer in East China reduced equipment downtime by 37% and saved nearly RMB 120,000 in annual maintenance costs.

New Energy Vehicles & Charging Infrastructure
Widely used in battery management systems (BMS), on-board chargers, and high-power charging piles, the sensor provides high-accuracy SOC estimation and overcurrent protection, significantly improving battery safety and charging efficiency.

Renewable Energy & Energy Storage
In photovoltaic inverters, wind turbine converters, and energy storage systems, the LTC1000-S/SP26 enables millisecond-level fault detection and real-time harmonic analysis, increasing system conversion efficiency and improving fault warning capabilities. It reduces system protection response time to 1/3 that of conventional solutions. One solar PV company deployed 1,200 sensors to build an energy IoT network, identifying 23 underperforming units within six months and saving over RMB 4 million annually in electricity costs.

Rail Transit & Smart Grids
As the core current monitoring component in the Beijing–Zhangjiakou high-speed railway’s intelligent power supply system, 128 LTC1000-S/SP26 sensors have operated reliably for over 20,000 hours, withstanding -25°C cold and lightning surge tests, achieving a failure rate as low as 0.03 failures per thousand hours.

Why Choose LTC1000-S/SP26?

Genuine Product Guarantee – All products are sourced from official LEM channels with complete serial numbers and traceable certifications.

Professional Technical Support – Our experienced engineering team provides full support from selection advice to on-site commissioning, helping you realize your solution quickly.

Stock Availability – We keep LTC1000-S/SP26 and other LTC series models in stock to meet your fast delivery requirements.

Comprehensive After-Sales Service – Free returns or replacements during the one-year warranty period, plus calibration and extended warranty options for worry-free purchasing.