Digital Over and Under Voltage Protector, 63A/80A/100A

Digital over and under voltage protection device for sale online, available with 63A/80A/100A rated current, flame retardant housing, DIN rail installation,and optional 2 pole or 4 pole. ATO under voltage protector with a flame-retardant material shell, can be installed in a standard distribution box. 

Specifications (2 Pole)

• Model: ATO-FB-118
• Pole: 2 Pole
• Supply Terminals: N, L
• Rated Supply Voltage: AC 220V; DC 85-300V
• Rated Frequency: 40/50/60/70Hz
• > V Setting Range: AC130-300V; DC130-300V
• < V Setting Range: AC80-210V; DC85-210V
• Voltage Hysteresis: 5V
• Overvoltage Trip Delay: 0.5s
• Voltage Accuracy: <1%
• Max. Operating Phase Voltage: 350V
• Max. Operating Current: 63A/80A
• Altitude: ≤2000m
• Function: Lightning Protection
• Permissible Relative Humidity: ≤50% at 40℃ (Without Condensation)
• Ambient Temperature: -25℃~+55℃
• Net Weight: 63A: 201g; 80A: 213g
• Size: 83x54x66mm

Specifications (4 Pole)

• Model: ATO-FB-168
• Pole: 4 Pole
• Rated Supply Voltage: AC 230V
• Operating Voltage Range: AC 230-300V
• Rated Frequency: 40-70Hz
• Lag: Overvoltage and Asymmetry: 5V; Undervoltage: 5V
• Measurement Accuracy: 0.5 class
• Rated Insulation Voltage: 450V
• Output Contact: 3NO
• Electrical Life: 10⁵
• Mechanical Life: 10⁵
• Protection Class: p20
• Pollution Degree: 3
• Altitude: <2000m
• Operating Temperature: -5℃~40℃
• Humidity: ≤50%or40℃(Condensation Free)
• Storage Temperature: -10℃~55℃
• Size: 110x108x70mm

Dimensions and Wiring Diagrams (Unit: mm)

2 Pole

4 Pole

Tips: Advantages of Digital Overvoltage and Undervoltage Protector

The digital overvoltage and undervoltage protector offers accurate and stable monitoring of the power supply, while allowing flexible adjustment of thresholds and delay settings. It reacts quickly to abnormal voltage changes to safeguard equipment and often combines multiple protection functions in a single unit. With a clear digital display for real-time voltage information and a durable electronic design, it ensures reliable performance and a longer service life.