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Picture a control panel where two clear digital displays show exactly what the incoming voltage is doing at every moment. No guesswork, no uncertainty, just immediate clarity. The Single Phase Dual Display Overvoltage And Undervoltage Protector transforms ordinary panels into intelligent safety systems, continuously monitoring voltage and acting the moment abnormalities occur.
This protector is designed to safeguard sensitive electronics, motors, and appliances from the harmful effects of both overvoltage and undervoltage. Equipped with a high-speed microprocessor, it detects voltage anomalies in milliseconds and disconnects the load before any damage can happen. When the voltage returns to a safe range, the device automatically restores power after a configurable delay, ensuring smooth operation without manual intervention.
More than just a safety device, it provides peace of mind. In homes, offices, or industrial settings, this protector acts as a silent guardian, preventing unexpected electrical stress from causing downtime, equipment wear, or costly repairs.
The dual digital displays offer:
Real-time visualization of incoming voltage and operational status
Immediate recognition of overvoltage or undervoltage events
Simplified troubleshooting without extra instruments
Advanced circuitry and processing logic allow:
Detection of harmful voltage dips and surges in milliseconds
Immediate disconnection to prevent equipment damage
Automatic reconnection once voltage stabilizes
Adjustable thresholds to suit various electrical environments
Users can customize protection parameters:
Set overvoltage and undervoltage trip points
Configure delay and reset times for specific equipment
Fine-tune performance to avoid unnecessary trips while maximizing protection
Compatible with DIN-Rail and panel mounting systems
Flame-retardant enclosure for long-term durability
Clear terminal labeling for straightforward wiring
Resilient against electrical noise, temperature changes, and vibration
While traditional circuit breakers protect against overcurrent, they cannot detect undervoltage or short-term surges that gradually damage motors or electronics. This protector fills that gap by monitoring voltage continuously and acting proactively to prevent damage.
Fluctuating voltage conditions are common due to grid instability, sudden load changes, or long cable runs. With this device:
Electronics operate safely without overheating
Motors maintain consistent performance
Systems recover smoothly from voltage dips or surges
Maintenance time is minimized thanks to clear real-time voltage feedback
This makes it easier to maintain operational stability and reduce unexpected failures.
| Rated voltage | AC 220V | Operating voltage range | AC 80-400V | |||
| Frequency | 50/60Hz | Rated current | 40A | |||
| Over-voltage setting range | 230-300V | Under-voltage setting range | 210-140V | |||
| >U&<U Trip delay | 0.1-30s | Reset/start delay | 1-500s | |||
| Voltage measurement accuracy | 2% | Protection level | IP 20 | |||
The high-speed monitoring ensures your system reacts only when necessary, preventing equipment damage while avoiding unnecessary trips.
Dual displays provide immediate insight into the system’s health, enabling rapid troubleshooting and informed decisions.
Protecting against voltage extremes reduces wear on electronics and motors, prolonging operational life and lowering maintenance costs.
Adjustable thresholds and delays allow the protector to adapt to a variety of environments, providing reliable protection tailored to your system.
Q: Can this protector prevent damage from voltage spikes?
A: Yes, it automatically disconnects power when voltage exceeds preset limits, protecting equipment from harm.
Q: Does it reset automatically after a trip?
A: Yes, once the voltage stabilizes and the configured delay elapses, power is restored automatically.
Q: Are the voltage ranges adjustable?
A: Absolutely. Overvoltage and undervoltage thresholds can be customized to match specific system requirements.
Q: Can it be installed in any standard panel?
A: Yes, it supports both DIN-Rail and panel mounting, ensuring flexible installation.
Q: Is it suitable for sensitive electronics and motors?
A: Yes. Rapid detection and intelligent disconnection safeguard sensitive equipment from voltage stress.
