FRS1000-S,FRS 1000-S

‌FRS1000-S High-Precision DC Current Sensor — The Precision Eye of Industrial Smart Monitoring‌

FRS1000-S ‌Product Overview‌

The FRS1000-S is an open-loop Hall effect DC current sensor developed by LEM SA, engineered for industrial-grade high-precision current monitoring. It non-invasively converts DC currents up to 1000 A into a standardized 0–5 V voltage output, providing galvanic isolation between primary and secondary circuits to eliminate ground loops and high-voltage risks. With a single power supply of 12–24 V DC, it operates reliably without external modules, making it an ideal solution for precise current acquisition in photovoltaic inverters, battery test benches, high-power motor drives, and energy management systems. Its compact design and industrial durability simplify complex monitoring tasks—ensuring safety, efficiency, and ease of integration.

FRS1000-S ‌Core Features and Technical Advantages‌

‌High-Precision DC Measurement‌: Leveraging advanced open-loop Hall technology, it delivers ±0.5% accuracy across wide temperature ranges, ensuring every volt accurately reflects the true current state.

‌Zero Insertion Loss‌: No need to break the main circuit—preserves original impedance, eliminates resistive heating and energy loss inherent in shunt-based systems.

‌Strong Interference Immunity‌: Internal voltage regulation and filtering suppress electromagnetic noise and common-mode interference, preserving signal integrity over long-distance transmission.

‌Wide Supply Voltage Compatibility‌: Operates reliably on 12–24 V DC, compatible with industrial control cabinets, PLCs, and mobile power environments—no additional voltage regulators required.

‌Fast Dynamic Response‌: Response time under 10 μs enables precise capture of transient current fluctuations, ideal for pulsed loads, switching power supplies, and motor start-stop events.

‌Industrial Environmental Resilience‌: Rated for operation from -40°C to +85°C, it withstands extreme conditions—from freezing outdoor installations to high-temperature control cabinets—without performance drift.

FRS1000-S ‌Technical Specifications‌

‌Rated Current‌: 1000 A DC

‌Output Signal‌: 0–5 V analog voltage (linear proportionality)

‌Measurement Range‌: 0–1500 A (1.5× overload capability)

‌Supply Voltage‌: 12–24 V DC (unipolar)

‌Accuracy‌: ±0.5%

‌Response Time‌: <10 μs

‌Isolation Voltage‌: 5 kV AC (primary to secondary)

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

‌Protection Rating‌: IP20 (suitable for standard electrical control cabinets)

‌Mounting‌: DIN rail or bolt mounting, compatible with mainstream industrial distribution structures

‌Load Capacity‌: ≥10 kΩ (compatible with standard data acquisition cards and PLC analog input modules)

FRS1000-S ‌Market Positioning and Competitive Advantages‌

The FRS1000-S is engineered as a revolutionary alternative to traditional shunts and low-accuracy current transformers. Unlike shunts, it requires no circuit interruption, generates no heat, and eliminates grounding hazards. Compared to conventional voltage sensors, it offers inherent galvanic isolation, immunity to common-mode interference, and eliminates the need for external isolation amplifiers. In high-growth sectors such as renewable energy, smart manufacturing, and rail transportation, customers are shifting from “functional” to “reliable, safe, and easy-to-integrate” solutions. Backed by LEM’s 50+ years of sensing expertise, the FRS1000-S delivers industrial-grade precision, zero-maintenance design, and plug-and-play simplicity—making it a critical component for system integrators and equipment manufacturers seeking to enhance product competitiveness.

FRS1000-S ‌Typical Applications‌

‌Photovoltaic Inverters‌: Real-time monitoring of DC string currents to accurately detect panel degradation, shading, and faults—boosting energy yield and enabling predictive maintenance.

‌Battery Testing and BMS Systems‌: Delivers high-precision, low-noise current data during charge/discharge cycles, ensuring reliable battery safety evaluation and lifespan prediction.

‌High-Power DC Motor Drives‌: Enables current feedback loops in servo systems, electric forklifts, and rail traction control—enhancing control accuracy and dynamic response.

‌UPS and Energy Storage Converters‌: Accurately measures DC bus current to optimize energy dispatch strategies, improving system response speed and grid stability.

‌Industrial Power Supplies and Welding Equipment‌: Provides current feedback in high-frequency switching power supplies, stabilizing output waveforms, reducing harmonic distortion, and extending equipment life.

‌Energy Management Systems (EMS)‌: Forms the backbone of enterprise-wide current acquisition networks, delivering authentic data for energy analytics, carbon accounting, and time-of-use pricing strategies.

‌Why Choose the FRS1000-S?‌

‌Precise and Reliable‌: ±0.5% accuracy ensures every measurement is trustworthy.

‌Safe Isolation‌: 5 kV galvanic isolation eliminates electric shock and grounding risks—protecting personnel and equipment.

‌Plug-and-Play Integration‌: 0–5 V output connects directly to PLCs, data loggers, and HMIs—no additional signal conditioning needed, accelerating development cycles.

‌Low Power Consumption‌: Draws only microamp-level quiescent current—reducing overall system energy use and aligning with green manufacturing goals.

‌Industrial Durability‌: Stable operation from -40°C to +85°C—unaffected by harsh winters in northern China or scorching summers in the south.

‌Trusted Brand Heritage‌: Originating from LEM, Switzerland—global leader in current sensing with over two decades of proven industrial deployment.