VBT300-3NND1B4 is a three-phase voltage sensor produced by LEM company. The product features are highly isolated between the primary and secondary sides, the measurement range is 120%V, and the output voltage is 0.5VDC. It is suitable for automation control, measuring instruments, monitoring and other fields.
The VBT300-3NND1B4 is a three‑phase voltage sensor designed for measuring AC voltages up to 2.5 kV at 50 Hz. It operates from a 12 V DC supply (±5 %) and provides isolated 0‑20 mA DC outputs for each phase and a reference output.
Mechanical dimensions, weight (≈150 g), and operating temperature range (‑10 °C to +70 °C) are listed, along with accuracy, temperature drift and other performance parameters. The sensor complies with DIN‑35 mm mounting standards. This manual is written in Chinese.
| Accuracy (‑25 °C to +24 °C) | 0.5 % |
|---|---|
| Supply Voltage | 12 V DC ±5 % |
| Output Current | 0–20 mA DC per phase |
| Operating Temperature Range | ‑10 °C to +70 °C |
| Storage Temperature Range | ‑20 °C to +80 °C |
| Temperature Drift | 160 ppm/°C |
| Mechanical Tolerance | ±0.5 mm |
| Mounting Size (DIN 35 mm) | 35 mm |
The sensor offers an accuracy of 0.5 % within the temperature range of –25 °C to +24 °C.
A 12 V DC supply with a tolerance of ±5 % is required.
Each phase output provides a current range of 0 to 20 mA DC.