LF2005-S/SP24，LF 2005-S/SP24

‌LF2005-S/SP24 Product Description — Precision Current Sensing Engineered for Industrial Efficiency

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LF2005-S/SP24 ‌Core Advantage: High Accuracy, Streamlined for Standardization‌
The LF2005-S/SP24 is a closed-loop Hall current sensor from LEM’s industry-leading LF2005-S family — engineered to deliver ‌±0.3% accuracy‌ under dynamic load conditions, with a robust design optimized for high-volume industrial deployments. Unlike higher-end variants that add IO-Link or advanced connectors, the SP24 focuses on core performance: uncompromised precision, thermal stability, and seamless integration into existing control architectures — making it the preferred choice for systems where reliability, repeatability, and cost-efficiency converge.

LF2005-S/SP24 ‌Key Features: Built for Demanding Industrial Environments‌

‌Closed-Loop Hall Technology‌: Utilizes active magnetic feedback to eliminate drift, hysteresis, and EMI interference — ensuring ‌±0.3% accuracy‌ even under rapid current transients from VFDs, inverters, and pulse-width modulated systems.

‌Split-Core Mechanical Design‌: Enables clamp-on installation on live conductors — ideal for retrofits, maintenance cycles, and continuous-operation lines where system shutdowns are cost-prohibitive.

‌Wide Dual-Polarity Supply Range‌: Operates reliably across ‌±15 V to ±24 V‌, compatible with industrial DC buses, UPS systems, and mixed-voltage control panels — no external power conditioning required.

‌Industrial-Grade Construction‌: Housed in ‌UL 94-V0‌ flame-retardant material with ‌IP54‌ ingress protection — fully operational from ‌-40°C to +85°C‌, ensuring consistent performance in unheated enclosures, outdoor substations, and high-vibration manufacturing zones.

‌Galvanic Isolation‌: Provides ‌6 kV RMS‌ isolation, certified to ‌EN 50178‌, protecting control systems and personnel in high-voltage applications such as traction drives, battery arrays, and DC distribution networks.

‌Optimized Output Signal‌: Delivers a clean ‌400 mA‌ current output — directly compatible with PLCs, DCS, and SCADA inputs, eliminating the need for signal conditioning modules and reducing system complexity.

LF2005-S/SP24 ‌Technical Specifications‌

‌Rated Current‌: 2000 A (RMS)

‌Measurement Range‌: ±3000 A (DC, AC, Pulse)

‌Output Type‌: Current output (400 mA nominal)

‌Supply Voltage‌: ±15 V to ±24 V (dual polarity)

‌Accuracy‌: ±0.3% at 25°C

‌Linearity‌: ±0.1%

‌Response Time‌: <1 µs

‌Isolation Voltage‌: 6 kV RMS

‌Operating Temperature‌: -40°C to +85°C

‌Installation‌: Split-core clamp, compatible with Molex and JST industrial connectors

‌Protection Rating‌: IP54

‌Certifications‌: CE, RoHS, EN 50178

‌Warranty‌: Global 5-year warranty

‌Applications: Enabling Intelligent Power Control Across Critical Sectors‌

‌Rail Traction Systems‌: Monitors DC link and motor currents in metro, tram, and locomotive propulsion — enabling real-time fault detection, regenerative braking control, and predictive maintenance without interrupting service.

‌Battery Energy Storage (BESS)‌: Tracks charge/discharge currents in lithium-ion and flow battery stacks — supporting cell balancing algorithms, thermal runaway prevention, and grid compliance in utility-scale installations.

‌Industrial Automation & Robotics‌: Integrates into servo drives and PLCs for closed-loop current regulation — improving motion precision, reducing motor wear, and minimizing unplanned downtime in high-speed production lines.

‌Renewable Energy Inverters‌: Measures DC input and AC output in solar and wind systems — enabling maximum power point tracking (MPPT), grid synchronization, and fault isolation under fluctuating environmental conditions.

‌High-Power Industrial Converters‌: Used in rectifiers, choppers, and DC-DC converters — ensuring stable feedback for precise power delivery in electroplating, electrolysis, and heavy-duty motor drives.

‌Uninterruptible Power Supplies (UPS)‌: Monitors DC bus and inverter output currents in data centers and telecom facilities — preventing cascading failures and ensuring seamless transition during grid disturbances.

‌Why Choose LF2005-S/SP24?‌

‌Plug-and-Play Integration‌: The standardized 400 mA output connects directly to industrial controllers — reducing commissioning time by up to 35% and eliminating external signal conditioning hardware.

‌Zero-Downtime Installation‌: Install or replace without de-energizing circuits — preserving production schedules and minimizing operational disruption in mission-critical environments.

‌Thermal Stability Without Derating‌: Maintains ±0.3% accuracy across the full -40°C to +85°C range — no performance degradation in unconditioned enclosures or outdoor installations.

‌Platform Consistency‌: Shares identical mechanical footprint, pinout, and documentation with SP27, SP28, and other LF2005-S variants — simplifying inventory, training, and future upgrades to smart monitoring systems.

‌Proven Long-Term Reliability‌: Built on decades of closed-loop Hall technology — engineered for continuous operation under stress, delivering maximum service life and minimal field failures.