LAH Series

DC, AC pulse currents' measurements of 8, 12, 25, 50, 100 & 125 ARMS nominal with galvanic isolation

LAH - Current sensors

The LAH product family is designed to facilitate the measurement of DC, AC, and pulse currents with nominal values of 8, 12, 25, 50, 100, and 125 ARMS, providing galvanic isolation.

LAH current sensors offer impressive features, including excellent accuracy, rapid response times, a compact design, and an integrated primary conductor. These transducers are specifically designed for PCB mounting, both for the primary and secondary circuits.

The LAH 25-NP part introduces additional versatility with its ability to manage multi-ranges.

The LAH current sensor family operates on closed-loop Hall effect technology, ensuring reliable and accurate current measurements in industrial applications.

LAH – Features and benefits

Main characteristics

Closed loop (compensated) current transducer using the Hall effect
Printed circuit board mounting
Insulating plastic case recognized according to UL 94-V0 (excepted on LAH 125-P)

Benefits

Excellent accuracy
Very good linearity
Low temperature drift
Optimized delay time
Wide frequency bandwidth
No insertion losses
High immunity to external interference
Current overload capability

Typical applications

LAH sensors, with their capability to measure DC, AC, and pulse currents, find common usage in various industrial applications. Some examples of these applications include:

AC variable speed drives and servo motor drives
Static converters for DC motor drives
Battery supplied applications
Uninterruptible Power Supplies (UPS)
Switched Mode Power Supplies (SMPS)
Power supplies for welding applications

LEM LAH – Download & Technical Characteristic

Product	Document	Primary nominal RMS voltage	Supply Voltage range	Op. Temperature
LAH 25-NP	Datasheet 3D	8 A, 12 A, 25 A	12 to 15	-25 to 85°C
LAH 50-P	Datasheet 3D	50 A	12 to 15	-25 to 85°C
LAH 50-P/SP1	Datasheet	50 A	12 to 15	-25 to 85°C
LAH 100-P	Datasheet 3D	100 A	12 to 15	-25 to 85°C
LAH 125-P	Datasheet 3D	125 A	12 to 15	-40 to 85°C

LAH Sensors – ASK FOR SAMPLES / QUOTATIONS

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