Three-phase DIN rail digital voltmeter – precise readings, rapid installation, and long-term reliability
Need to keep a constant eye on your industrial electrical panel without the hassle of manual multimeters or shutting down your power lines? This three-phase digital DIN rail voltmeter provides real-time, clear voltage monitoring 24/7. Whether you are working with single-phase or three-phase networks at 50 or 60 Hz, this device adapts seamlessly to your setup.
Note: This device is designed exclusively for alternating current (AC). It is not compatible with DC networks.
Why choose this model? (Key advantages):
- Compact 18mm width — occupies only a single module on a 35mm DIN rail, saving valuable space in your distribution board.
- 1% Accuracy — provides the precision required for continuous monitoring of industrial installations where voltage fluctuations matter.
- Single and three-phase compatible — a versatile unit that works in L+N or 3L+3N configurations without the need for extra adapters.
- High-visibility LED display — values are easy to read at a glance, even in poorly lit panels or from a distance.
- Electrical lifespan ≥ 15,000 hours — engineered for continuous operation in demanding industrial environments.
- Wide AC 80V – 500V range — covers both standard 230V single-phase and 400V three-phase industrial networks.
Performance and Specifications
The flexible terminals allow for quick wiring in any configuration — single-phase (L+N) or three-phase (3L+3N) — without needing to reconfigure your panel. With a refresh rate of 200 ms, any sudden voltage spikes or drops are captured and displayed instantly.
The IP20 rating ensures protection against accidental contact within enclosed electrical cabinets. The operating temperature range of 0°C – 40°C is perfectly suited for most industrial environments, from manufacturing floors to commercial distribution boards.
| Parameter | Value / Detail |
|---|---|
| Wiring Type | L+N (single-phase), 3L+3N (three-phase) |
| Measurement Range | AC 80V – 500V |
| Measurement Accuracy | 1% |
| Nominal Frequency | 50 / 60 Hz |
| Response Time | > 200 ms / measurement |
| Electrical Lifespan | ≥ 15,000 hours |
| Operating Temperature | 0°C – 40°C |
| Protection Rating | IP20 |
| Dimensions (L × W × H) | 81 mm × 18 mm × 66 mm |
| Weight | 75 g |
| Mounting Type | 35 mm DIN rail |
| Display Type | Digital LED display |
What’s in the box
- 1 × Three-phase digital DIN rail voltmeter
- 1 × Installation manual
Frequently Asked Questions
Can I use this voltmeter in a standard 230V single-phase installation?
Yes. It supports L+N (single-phase) configurations and handles standard 230V voltages perfectly. The same unit can also be used for three-phase setups if your requirements change later.
What happens if the voltage drops below 80V?
The measurement range begins at 80V. Below this threshold, the display will not provide accurate readings. It is not recommended for low-voltage network monitoring.
Does it fit a standard 35 mm DIN rail?
Yes, it mounts directly without adapters. Its 18mm width means it only takes up one module, which is ideal for panels with limited space.
Can I install this in an outdoor electrical panel?
Not directly. The IP20 rating is only suitable for indoor use within enclosed panels protected from moisture and dust. For outdoor applications, you must use an enclosure with an IP54 rating or higher.
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