LF2000-S/SP5，LF 2000-S/SP5

‌LF2000-S/SP5 Product Description — The Analog Anchor for Mission-Critical Current Monitoring

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LF2000-S/SP5 ‌Core Advantage: Pure Analog Signal Integrity, Engineered for Uninterrupted Operation‌
The LF2000-S/SP5 is a high-precision, closed-loop Hall effect current sensor designed for applications where digital interference, firmware instability, or signal latency cannot be tolerated. Built on LEM’s industrial-grade analog architecture, it delivers ‌±0.3% accuracy‌ across its full operating range, with a ‌DC to 100 kHz frequency response‌ and a ‌-40°C to +85°C thermal tolerance‌. Unlike digital alternatives, the SP5 outputs a ‌linear 400 mA current signal‌ — no protocol, no clock, no software dependency. This ensures real-time, jitter-free feedback in systems where analog control loops are the foundation of safety and performance.

LF2000-S/SP5 ‌Key Features: Reliability Without Compromise‌

‌True Analog Output‌: Delivers a direct, noise-immune 400 mA current signal — fully compatible with analog PLCs, DCS, and legacy control systems without ADC conversion or signal conditioning.

‌Wide Thermal Range‌: Operates reliably from ‌-40°C to +85°C‌, making it ideal for unconditioned enclosures, outdoor substations, and high-heat industrial environments.

‌2000 A Rated, ±3700 A Measurement Range‌: Capable of handling continuous DC, AC, and transient pulse currents up to 1.85× rated value — capturing motor inrush, battery surge, and fault events without saturation.

‌DC to 100 kHz Bandwidth‌: Preserves waveform fidelity from fast-switching IGBTs and PWM inverters, enabling precise torque control and protection logic with minimal phase delay.

‌Molex SP5 Interface‌: Maintains mechanical and electrical compatibility with the LF2000-S family — enables direct field replacement of SP2, SP6, and SP9 variants without re-wiring or recalibration.

‌Robust Industrial Enclosure‌: No optical components, no moving parts, no digital circuitry — designed for high-vibration, high-humidity, and EMI-rich environments with proven long-term durability.

‌Dual-Polarity Supply‌: Operates on ‌±15 V to ±24 V‌ power rails, ensuring compatibility with standard industrial power systems.

‌RoHS & CE Certified‌: Compliant with international environmental and safety standards for global deployment in regulated industries.

LF2000-S/SP5 ‌Technical Specifications‌

‌Rated Current‌: 2000 A (RMS)

‌Measurement Range‌: ±3700 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%

‌Frequency Response‌: DC to 100 kHz

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

‌Storage Temperature‌: -40°C to +85°C

‌Secondary Resistance‌: 24 Ω (at 70°C), 25 Ω (at 85°C)

‌Magnetic Offset Current‌: ±0.5 mA (over full temperature range)

‌Certifications‌: RoHS, CE

‌Weight‌: 1.5 kg

‌Mounting‌: Panel mount, vertical or horizontal orientation

‌Connector‌: Molex SP5 (compatible with LF2000-S family)

LF2000-S/SP5 ‌Applications: Where Analog Fidelity Is Non-Negotiable‌

‌Rail Traction Control Systems‌: Monitors traction motor currents in locomotives and metro systems — delivers stable, real-time feedback to analog-based propulsion and braking controllers, immune to onboard digital network noise.

‌Grid-Scale Battery Energy Storage (BESS)‌: Tracks charge/discharge currents in large-format lithium-ion and flow battery arrays — enables precise state-of-charge estimation and thermal runaway detection without software-based diagnostics vulnerable to cyber threats.

‌High-Power Industrial Drives‌: Provides real-time current feedback for VFDs controlling compressors, extruders, and rolling mills — maintains control loop stability during voltage sags, harmonics, and load transients.

‌Electrolysis and Metal Processing‌: Ensures consistent current density in aluminum smelting and green hydrogen production — where 24/7 operation and thermal cycling demand sensor stability over digital complexity.

‌Uninterruptible Power Supplies (UPS)‌: Detects DC bus anomalies and inverter output deviations — prevents cascading failures in data centers and telecom facilities during grid transitions, without relying on software-based diagnostics.

‌Why Choose LF2000-S/SP5?‌

‌No Digital Compromises‌: No Ethernet, no Modbus, no firmware — just pure analog signal fidelity, immune to network congestion, cyber threats, or software bugs.

‌Proven Reliability in Harsh Conditions‌: Designed for environments where digital sensors fail due to EMI, temperature extremes, or power fluctuations — the SP5 simply works.

‌Seamless Integration‌: Drop-in replacement for SP2/SP6/SP9 — no re-wiring, no recalibration, no retraining. Reduces downtime and maintenance costs.