LF2005-S/SP36，LF 2005-S/SP36

‌LF2005-S/SP36 Product Description — Engineered for Uninterrupted Power Control in Demanding Environments

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LF2005-S/SP36 ‌Core Advantage: The Standard-Bearer of Industrial Current Sensing‌
The LF2005-S/SP36 is a closed-loop Hall current sensor from LEM’s proven LF2005-S series, designed for mission-critical applications where precision, reliability, and zero-downtime installation are non-negotiable. As a direct sibling to the SP37 and SP21 models, it inherits the same industrial-grade architecture — delivering identical performance, thermal stability, and integration simplicity — making it the ideal choice for upgrades, replacements, or new deployments where consistency across sensor platforms is essential.

LF2005-S/SP36 ‌Key Features: Precision That Never Compromises‌

‌Closed-Loop Hall Technology‌: Delivers ‌±0.3%‌ measurement accuracy through active magnetic feedback, nullifying drift, hysteresis, and external electromagnetic interference — even in the noisiest environments generated by VFDs, inverters, and high-frequency switching systems.

‌Split-Core Design for Live Installation‌: Enables clamp-on mounting without disconnecting live conductors — eliminating costly production stoppages during maintenance, retrofitting, or system scaling.

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

‌Rugged Environmental Resilience‌: Encased in ‌UL 94-V0‌ flame-retardant polymer, rated for ‌IP54‌ protection against dust and water ingress — fully functional across the full industrial spectrum from ‌-40°C to +85°C‌, ideal for unheated enclosures, outdoor substations, and high-vibration manufacturing lines.

‌Galvanic Isolation Safety‌: Provides ‌>5 kV RMS‌ isolation, certified to ‌EN 50178‌, ensuring personnel safety and control system integrity in high-voltage applications such as traction drives, battery energy storage, and DC distribution networks.

LF2005-S/SP36 ‌Technical Specifications‌

‌Rated Current‌: 2000 A (RMS)

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

‌Output Type‌: Current output (typical 400 mA)

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

‌Accuracy‌: ±0.3%

‌Response Time‌: <1 µs

‌Isolation Voltage‌: >5 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

LF2005-S/SP36 ‌Applications: Enabling Intelligent Power Systems Across Industries‌

‌Energy Storage Systems‌: Enables real-time monitoring of PCS charge/discharge currents for precise battery balancing, extending cycle life and maximizing system efficiency in lithium-ion and flow battery arrays.

‌Rail Traction Control‌: Captures high-frequency current transients in subway, tram, and locomotive drive systems — enabling predictive fault detection and live sensor replacement without service interruption.

‌Industrial Automation‌: Integrates directly into servo drives, robotic controllers, and VFDs for closed-loop current regulation and overload protection — enhancing equipment OEE and reducing unplanned downtime.

‌High-Power Welding‌: Delivers microsecond-resolution feedback for pulsed arc, laser, and resistance welding processes — ensuring consistent weld quality, repeatability, and process control.

‌Critical Power Infrastructure‌: Monitors UPS output and DC distribution currents in data centers and telecom hubs — preventing cascading failures and ensuring continuous uptime under peak load conditions.

‌Switchgear Modernization‌: Replaces legacy current transformers with compact, non-contact sensing — simplifying retrofitting, improving safety, and reducing maintenance complexity in medium-voltage switchgear.

‌Why Choose LF2005-S/SP36?‌

‌Seamless System Integration‌: Standard 400 mA output connects directly to PLCs, DCS, and SCADA systems — eliminating the need for signal conditioning modules and reducing commissioning time by over 30%.

‌Zero-Downtime Deployment‌: Install or replace without shutting down live circuits — preserving production schedules and minimizing operational disruption.

‌Thermal Stability Without Derating‌: Maintains ±0.3% accuracy across the full operating temperature range — no performance degradation in extreme heat or cold, even in unconditioned enclosures.

‌Platform Consistency‌: Shares mechanical footprint, firmware interface, and documentation with SP21 and SP37 — simplifying inventory management, technician training, and future expansion to IO-Link or wireless monitoring.