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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