
LV100-600/SP6 Closed-Loop Voltage Sensor — The Precision Choice for High-Reliability Industrial Measurement
LV100-600/SP6 Core Features
Leveraging closed-loop magnetic compensation Hall technology, it achieves high linearity and zero-flux detection, eliminating temperature drift and nonlinear errors to deliver stable, delay-free, high-fidelity voltage signals even in complex electromagnetic environments.
Wide temperature operation: Fully functional from -40°C to +75°C, eliminating the need for external thermal compensation in extreme industrial conditions.
Primary electrical isolation: Achieves up to 3 kV isolation voltage at 600 V rated voltage, ensuring operator safety and superior system noise immunity.
Low-power design: Optimized quiescent current enables compatibility with energy-efficient power systems and reduces overall energy consumption.
High overload tolerance: Withstands transient overvoltage surges, effectively protecting against grid fluctuations and load transients.
LV100-600/SP6 Technical Specifications
Sensor Type: Closed-loop voltage sensor (Hall effect)
Rated Voltage: 600 V DC/AC
Supply Voltage: 15 V to 24 V AC+DC
Output Signal: Linear proportional current output (typical 10 mA)
Response Time: ≤ 30 μs
Bandwidth: DC ~ 100 kHz
Accuracy Class: ±0.8% F.S. (over full temperature range)
Temperature Drift: ≤ 150 ppm/°C
Isolation Voltage: 3 kV DC / 1 min (primary-secondary isolation)
Operating Temperature: -40°C to +75°C
Protection Rating: Complies with UL94-V0 flammability standard, suitable for harsh industrial environments
LV100-600/SP6 Typical Applications
Bus voltage closed-loop feedback in variable frequency drives
DC-side monitoring in renewable energy inverters and PV energy storage systems
Precise voltage regulation in uninterruptible power supplies (UPS)
High-voltage sampling in electric vehicle charging modules
Energy recovery control in rail transit traction systems
Voltage acquisition units in industrial battery management systems (BMS)
Why Choose LV100-600/SP6?
As the flagship model in LEM’s LV series SP6 variant, it not only inherits the exceptional stability of closed-loop technology but also breaks new ground in temperature resilience and industrial compatibility. Compared to open-loop alternatives, its closed-loop architecture reduces long-term drift by over 80%, significantly lowering calibration frequency and maintenance costs.
The SP6 version is specifically engineered for demanding industrial sites, with its -40°C cold-start capability delivering superior performance in cold-region wind farms and outdoor substations. Standardized mounting interfaces and industrial-grade signal output enable seamless integration with mainstream PLCs, DCS, and intelligent control systems — making it the ideal choice for high-end power electronics seeking precision, reliability, and minimal maintenance.
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