HY50‑P / SP22 LEM Current Transducer
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HY50‑P / SP22 LEM Current Transducer
HY50-P / SP22 Current Transducer (LEM)
The HY50-P / SP22 is a compact Hall-effect current transducer by LEM, designed for precise measurement of DC, AC, and pulsed currents in demanding industrial environments. With a nominal primary range of 50 A RMS (extendable to ±150 A), this module provides galvanic isolation between the high-power primary side and sensitive electronic circuits—ensuring both safety and signal integrity.
Featuring a PCB-mount package with low power consumption, the transducer outputs an analog signal of up to ±4 V (with a dual ±15 V supply). Accuracy remains within ±1 %, with a frequency bandwidth up to 50 kHz and a quick response time under 3 µs.
Built with a UL 94-V0-rated insulating case, the HY50-P / SP22 is compact, interference resistant, and durable—suited for use in inverters, SMPS, motor speed controls, UPS units, battery-powered systems, and welding power supplies.Lempowertronics.com.tw
Key Specifications
| Specification | Details |
|---|---|
| Measurement Principle | Open-loop Hall-effect |
| Primary Current (RMS) | 50 A (nominal); up to ±150 A |
| Supply Voltage | ±15 V (dual) |
| Output Signal | ±4 V analog (at ±Iₚₙ, RL = 10 kΩ) |
| Accuracy | ±1 % at nominal current |
| Frequency Bandwidth | DC to 50 kHz |
| Response Time (t₉₀) | < 3 µs (for 50 A/µs di/dt) |
| Insulation Voltage (1 min AC) | 2.5 kV |
| Operating Temperature Range | −10 °C to +80 °C |
| Package Type | PCB-mount, UL 94-V0 plastic |
| Typical Applications | Inverters, SMPS, UPS, motor drives, welding equipment |
