4.9 Based on 1181 reviews 
Description
Protect Your System from Phase and Voltage Faults
The Niglon VMT4 3 Phase Failure and Rotation Monitor protects motors and machines from unsafe power. It checks for phase loss, wrong rotation, and voltage problems. If it finds a fault, it stops the power to keep your system safe.
Simple and Reliable DIN Rail Monitor – Phase Loss and Rotation Detection Relay
This relay fits easily on a DIN rail. It has clear LED lights to show system status. You can set how fast it reacts, from 0.1 to 10 seconds. It’s great for small panels where space is tight.
🔧 Key Features – DIN Rail Voltage Monitoring Relay
- Works on 3-phase power: 101–318V AC
- Detects missing phase, wrong rotation, and voltage errors
- Two 8A relay outputs (SPDT)
- Delay timer: 0.1 to 10 seconds
- LED indicators
- Compact 17.5 mm size
- Mounts to standard DIN rail
📏 Size – 3 Phase Voltage Protection Relay
- Width: 17.5 mm
- Height: 90 mm
- Depth: 64 mm
- Weight: 72g
Best Uses
- Pumps and motors
- HVAC units
- Industrial machines
- Lift and control panels
📝 Summary – 3 Phase Failure and Rotation Monitor
The Niglon VMT4 is a small but powerful tool. It spots phase problems and voltage faults fast. It’s easy to fit, easy to use, and helps protect your electrical system from damage.
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