LV25-P/SP6,LV 25-P/SP6

‌LV25-P/SP6 Product Description: High-Reliability Voltage Sensing for Industrial Applications

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LV25-P/SP6 ‌Key Features‌
Closed-loop Hall effect technology enables magnetic flux balancing for complete galvanic isolation between primary and secondary circuits, ensuring signal integrity and safety in high-voltage industrial environments;
Exceptional linearity with total error under ±0.9% and linear deviation below 0.2%, enabling precise reconstruction of DC, AC, and pulsed voltage waveforms critical for dynamic control systems;
Configurable input range via user-selected external resistor R1, supporting voltage measurements from 10 V to 1500 V — eliminating the need for multiple sensor models across voltage tiers;
High electromagnetic immunity achieved through differential amplification and dual-core magnetic compensation, suppressing common-mode noise and external interference in noisy environments such as inverters and welding systems;
PCB surface-mount SIP packaging with 0.635×0.635 mm Faston primary terminals and 3-pin secondary connector enables direct soldering onto control boards, reducing assembly complexity and enhancing resistance to vibration and thermal cycling;
Industrial-grade certification with UL94-V0 flame-retardant housing, ensuring compliance with safety standards in harsh operating conditions.

LV25-P/SP6 ‌Technical Specifications‌

‌Primary Rated Current‌: 8 mA RMS (defined by external R1 resistor for 10–1500 V range)

‌Secondary Rated Output Current‌: 25 mA RMS

‌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 (0–25°C), ±0.20 mA/°C (-25°C to +70°C)

‌Operating Temperature Range‌: -25°C to +70°C

‌Response Time‌: <40 μs

‌Enclosure Type‌: PCB surface-mount, primary: 0.635×0.635 mm Faston, secondary: 3-pin plug-in

‌Transformation Ratio‌: 3118:1000 (primary current : secondary current)

‌Flame Rating‌: UL94-V0 rated engineering plastic housing

LV25-P/SP6 ‌Applications‌
Seamlessly integrated into high-power electronic control loops for real-time voltage feedback:

‌Solar and battery energy storage inverters‌: Enables accurate 1000 V DC bus monitoring to optimize MPPT efficiency and grid synchronization;

‌Battery Management Systems (BMS)‌: Supports high-precision voltage sampling in medium-to-high voltage battery stacks, improving cell balancing and cycle-life prediction;

‌AC drives and servo systems‌: Provides stable DC bus voltage feedback during motor acceleration, braking, and load transients to prevent overvoltage damage;

‌Uninterruptible Power Supplies (UPS)‌: Delivers high-fidelity input/output voltage signals for intelligent bypass switching, battery charge/discharge control, and fault diagnostics;

‌High-current welding equipment‌: Maintains signal stability under intense electromagnetic interference and current spikes, ensuring consistent weld quality;

‌Railway auxiliary power units‌: Facilitates voltage feedback in onboard DC/DC converters and braking resistor control for enhanced system reliability.

‌Why Choose LV25-P/SP6 This Model‌
As a global leader in industrial sensing, LEM has embedded over four decades of closed-loop Hall technology expertise into the LV25-P/SP6, establishing it as the benchmark for precision voltage monitoring;
Unlike open-loop sensors, it delivers ‌zero long-term drift‌, ‌factory-calibrated accuracy‌, and ‌maintenance-free operation‌ — significantly reducing lifecycle costs and downtime;
A single sensor replaces multiple fixed-range models through configurable R1 resistance, simplifying inventory, procurement, and design processes