LV25-1000/SP2,LV 25-1000/SP2

‌LV25-1000/SP2 Product Description: A Reliable Solution for Industrial High-Voltage Sensing

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LV25-1000/SP2 ‌Key Features‌
Closed-loop Hall effect technology ensures complete electrical isolation between the primary high-voltage circuit and secondary output, guaranteeing operational safety and signal integrity;
High linearity with total error below ±0.8%, accurately reconstructing DC, AC, and pulsed voltage signals up to 1000 V for demanding control applications;
Wide operating temperature range from -30°C to +70°C, enabling stable performance in extreme industrial and rail transit environments;
Superior electromagnetic interference (EMI) rejection through dual-core compensation and dynamic feedback algorithms, effectively suppressing common-mode noise and external magnetic fields;
Ultra-fast dynamic response under 40 microseconds, enabling real-time detection of voltage transients, surges, and high-frequency fluctuations to enhance system protection;
Compact dual-mount design supports both PCB surface mounting and panel mounting, allowing seamless integration into control cabinets, inverters, and power distribution units without compromising space efficiency.

LV25-1000/SP2 ‌Technical Specifications‌

‌Rated Input Voltage‌: 1000 V RMS (DC/AC/Pulse), measurable range up to ±1500 V

‌Secondary Rated Output Current‌: 25 mA

‌Supply Voltage Range‌: ±12 V to ±15 V DC (bipolar)

‌Bandwidth‌: DC to 100 kHz

‌Isolation Voltage‌: 2.5 kV AC (compliant with EN50178 industrial safety standard)

‌Temperature Drift‌: ±0.06 mA/°C (within 0–25°C range)

‌Operating Temperature Range‌: -30°C to +70°C

‌Enclosure Type‌: PCB-mount and panel-mount compatible, with Faston 6.3×0.8 mm terminals for primary connection

‌Flame Rating‌: UL94-V0 rated plastic housing, meeting stringent fire safety requirements

LV25-1000/SP2 ‌Applications‌
Engineered for integration into high-power industrial and power electronics systems:

‌High-power inverters and servo drives‌: Real-time monitoring of DC bus voltage to ensure stable motor operation during dynamic load transitions;

‌Solar and energy storage inverters‌: Precise acquisition of 1000 V DC-side voltage to optimize MPPT efficiency and grid synchronization control;

‌Uninterruptible Power Supplies (UPS)‌: Accurate feedback of input/output voltage states to enable intelligent bypass switching and battery charge/discharge protection;

‌High-current welding power supplies‌: Delivers stable voltage feedback under intense electromagnetic noise and current surges;

‌Railway traction systems‌: Used in auxiliary converters, braking resistor control, and onboard high-voltage battery monitoring;

‌Battery Management Systems (BMS)‌: Enables accurate voltage sampling in medium-to-high voltage battery stacks, improving safety and cycle-life prediction accuracy.

‌Why Choose LV25-1000/SP2 This Model‌
As a global benchmark in current and voltage sensing, LEM has infused over four decades of industrial sensor expertise into the LV25-1000/SP2, establishing it as the de facto standard for 1000 V DC voltage measurement;
Unlike earlier models, this variant extends the measurement range to 1000 V while retaining the same 25 mA output and 40 μs response time—eliminating the need for external signal conditioning circuits;
Factory-calibrated with zero drift over time, it requires no field recalibration, significantly reducing maintenance costs and unplanned downtime;
Certified to UL94-V0 flame resistance and 2.5 kV reinforced isolation, it meets the compliance requirements of medical, energy, and rail industries where safety and reliability are non-negotiable;