This PDF document is the detailed parameter manual of LEM's 500-2000A current transformer, which introduces the product's features and characteristics, including current measurement, T-RMS output, bus bar or panel mounting, insertion loss, application range, etc.
The AHR‑B5 is an AC/DC current transducer that delivers a 0‑5 V analog output proportional to the measured current. It offers complete electrical isolation between primary and secondary circuits, no insertion loss, and easy mounting, making it suitable for monitoring motor and power‑supply currents with high accuracy.
The manual includes detailed electrical data, performance characteristics, safety and warning notes, isolation and transfer specifications, mechanical dimensions, and recommended installation procedures. It also lists the environmental limits, protection rating (IP20), and recommended torque for mounting screws. This manual is written in Japanese.
| Load resistance | 10 kΩ |
|---|---|
| Supply voltage | 20 – 50 VDC |
| Supply current | 35 mA |
| Output voltage limit | < 7 V |
| Over‑current capacity | 30000 A·turn |
| Operating temperature range | -40 °C to +70 °C |
| Storage temperature range | -40 °C to +85 °C |
| IP protection rating | IP20 |
| Frequency bandwidth | 20 Hz – 6000 Hz (1 dB) |
It operates from a supply voltage of 20 V to 50 VDC.