LF2000-S/SP9，LF 2000-S/SP9

LF2000-S/SP9 Product Description — The Industrial Standard for High-Current Sensing

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LF2000-S/SP9 ‌Core Advantage: Proven Performance, Simplified Integration‌
The LF2000-S/SP9 is not a compromise — it’s the engineered baseline for industrial current measurement. As a direct descendant of LEM’s legendary LF series, it delivers ‌±0.3% accuracy‌ and ‌6 kV RMS galvanic isolation‌ using closed-loop Hall technology — without the complexity of digital interfaces or proprietary form factors. Designed for engineers who prioritize reliability over novelty, it offers a plug-and-play solution for systems demanding precision under extreme conditions. It doesn’t just sense current — it secures system integrity.

LF2000-S/SP9 ‌Key Features: Built for the Demands of Industrial Power‌

‌Closed-Loop Hall Effect Architecture‌: Actively cancels magnetic drift and hysteresis, maintaining ‌±0.3% accuracy‌ during rapid transients from VFDs, PWM inverters, and switching power stages — critical for stable motor control and energy conversion.

‌Dual-Polarity Power Supply‌: Operates reliably across ‌±15 V to ±24 V‌, eliminating the need for external regulators and enabling seamless integration into DC bus systems, UPS backplanes, and mixed-voltage industrial control panels.

‌400 mA Linear Current Output‌: Delivers a direct, noise-immune signal compatible with PLCs, DCS, and analog input modules — no external shunts, amplifiers, or signal conditioning needed. Reduces wiring errors and cuts commissioning time by up to 40%.

‌Industrial-Grade Enclosure‌: Constructed with ‌UL 94-V0 flame-retardant material‌, rated for ‌-40°C to +85°C‌ operation — performs flawlessly in unheated enclosures, outdoor substations, and high-vibration manufacturing environments.

‌Certified Galvanic Isolation‌: Compliant with ‌EN 50178‌, providing complete electrical separation between high-voltage primary circuits and low-voltage control systems — essential for safety in traction, battery arrays, and high-power DC networks.

‌Standardized SP9 Mounting Interface‌: Features Molex or JST industrial connectors — fully compatible with LF2005-S/SP2, SP8, SP10, and other SP-series variants — enabling direct replacement in legacy systems without redesign or retraining.

LF2000-S/SP9 ‌Technical Specifications‌

‌Rated Current‌: 2000 A (RMS)

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

‌Output Signal‌: 400 mA (linear, current-mode)

‌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

‌Frequency Response‌: 0 Hz to 100 kHz

‌Installation‌: Panel mount, vertical or horizontal orientation

‌Certifications‌: CE, RoHS, EN 50178

‌Warranty‌: Global 5-year limited warranty

LF2000-S/SP9 ‌Applications: Enabling Critical Power Systems Worldwide‌

‌Variable Frequency Drives (VFDs)‌: Monitors phase currents in real time — enabling precise torque control, overload protection, and predictive maintenance in industrial automation and conveyor systems.

‌Battery Energy Storage Systems (BESS)‌: Measures charge/discharge currents in lithium-ion and flow battery stacks — supporting cell balancing, state-of-health estimation, and thermal runaway prevention in grid-scale and commercial storage installations.

‌Renewable Energy Inverters‌: Tracks DC input and AC output in solar and wind farms — enabling MPPT optimization, grid synchronization, and fault isolation under fluctuating irradiance and wind conditions.

‌Industrial Rectifiers & Electrolysis‌: Ensures stable feedback for high-current processes in aluminum smelting, electroplating, and green hydrogen production — maintaining process consistency under continuous 24/7 operation.

‌Rail Traction Systems‌: Monitors traction motor and DC link currents in locomotives and metro systems — enabling regenerative braking control and real-time fault detection without service interruption.

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

‌Why Choose LF2000-S/SP9?‌

‌Universal Compatibility‌: Shares identical electrical characteristics and mechanical footprint with SP2, SP8, SP10, and other SP-series variants — enabling direct drop-in replacement in legacy systems without firmware or hardware redesign.

‌Zero-Downtime Installation‌: Panel-mount design allows for safe, live-circuit installation — critical for continuous production environments where shutdowns cost thousands per minute.

‌Thermal Stability Without Derating‌: Maintains full accuracy across the entire -40°C to +85°C range — no performance degradation in unconditioned enclosures, desert installations, or high-temperature zones.