4.9 Based on 1181 reviews 
Description
⚡ Reliable 3 Phase Under and Overvoltage Monitor for Power Protection
Niglon VMT3
The Niglon VMT3 3 Phase Under and Overvoltage Monitor protects motors and equipment from damage caused by voltage issues in three-phase systems. It detects if the voltage gets too high or too low and stops the load to prevent harm. It also checks for phase failure and rotation problems.
This compact device mounts easily to a DIN rail and includes LED indicators for supply and output status. It works with both AC and DC voltages from 110V to 240V.
🔧 Key Features
- Function: Under and overvoltage monitoring + phase loss and phase rotation
- System Type: 3-phase
- Voltage Range: 110–240V AC/DC
- Frequency: 45–65 Hz
- Output: 1 × changeover contact (10A)
- Contact Material: Silver-nickel (AgNi)
- LED Indicators: Show supply and output states
- DIN Rail Mount: Compact 17.5 mm wide housing
- Terminals: Screw clamp (up to 2.5 mm²), 0.7 Nm torque
- Standards: EN60255-1, EN60947-5-1
📏 Dimensions
- Width: 17.5 mm
- Height: 90 mm
- Depth: 64 mm
- Weight: 72 g
🏠 Best For
- Industrial power panels
- Three-phase motor systems
- Pumps, compressors, HVAC units
- Safety circuits in factories or warehouses
📝 Summary – Three-Phase Voltage Protection Relay
The Niglon VMT3 3 Phase Under and Overvoltage Monitor detects high/low voltage, missing phases, and rotation faults. It’s a compact, easy-to-install DIN relay designed for safe, long-lasting power monitoring in three-phase systems.
🔗 You May Also Need
Explore more options for 3-phase protection:
