HAS100-P Open-Loop Hall Effect Current Transducer

HAS100-P LEM – Global Leader in Electrical Measurement

The HAS100-P is designed and manufactured by LEM Holding SA, a Swiss company founded in Geneva in 1972 and listed on the SIX Swiss Exchange since 1986. With over 50 years of technological expertise, LEM has established four global production centers and obtained ISO 9001, ISO 14000, and TS 16949 certifications. Its products are widely used in drives & welding, renewable energy & power supplies, rail transportation, electric vehicles, smart grids, and Industry 4.0. Choosing LEM means choosing quality and reliability validated by demanding industrial markets worldwide.

HAS100-P Product Overview

The HAS100-P is a high-accuracy open-loop Hall effect current transducer designed for isolated measurement of DC, AC, pulsed, and irregular waveforms. Its compact PCB-mount design allows easy integration into power systems and control equipment, making it a key component for improving measurement precision and system reliability.

HAS100-P Key Highlights

±1% Full-Scale Accuracy
Maintains ±1% accuracy over the full operating temperature range, ensuring reliable current detection for precise system control.

3 µs Fast Response
Industry-leading response time (<3 µs) captures sudden current changes and dynamic load surges in real time, significantly enhancing the dynamic performance of your control system.

DC ~ 50 kHz Wide Bandwidth
From DC to 50 kHz, perfectly suited for applications ranging from standard variable frequency drives to high-frequency power switching.

High Accuracy, Low Thermal Drift
Output voltage temperature coefficient < ±0.1%/K. Excellent thermal stability from -10°C to +80°C guarantees accurate operation in varying ambient temperatures.

HAS100-P Technical Specifications

Why Choose the HAS100-P?

Swiss Precision Engineering

Every HAS100-P is produced under LEM's strict manufacturing system, ensuring long-term reliability in industrial environments. With decades of experience in electrical measurement, LEM sensors are widely used in inverters, servo drives, and power supplies around the globe.

3000 V High Isolation Protection

Provides 3000 V electrical isolation between primary and secondary circuits, effectively protecting downstream control circuits from high-voltage damage and significantly improving system safety.

3x Overload Capability

Rated at 100 A with a maximum peak current capability of ±300 A (3x rating). Handles inrush currents and transient overloads with ease, providing ample monitoring margin for system protection.

Low Power Consumption & Compact Size

Maximum current consumption of only ±15 mA reduces overall system energy usage. The compact modular package saves valuable PCB space, enabling smaller, higher-power-density designs.

Excellent Noise Immunity

The PBT polycarbonate housing combined with LEM's refined circuit design delivers high immunity to external interference, ensuring clean measurement signals even in harsh electromagnetic environments.

HAS100-P Broad Industrial Application

The HAS100-P has been successfully deployed in:

Motor drives: AC variable frequency drives, DC motor drives, servo drives

Power supplies: Switch-mode power supplies (SMPS), uninterruptible power supplies (UPS), welding power sources

Renewable energy: Photovoltaic inverters, fuel cell current control

Electric vehicles: Battery current monitoring, inverter drives, DC-DC converters

Industrial automation: Battery-powered equipment, static converters