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Visualize a control panel with six bright, crisp digital displays, each representing a phase’s voltage status in real time. No uncertainty. No guesswork. Just instant clarity. The Three Phase 100A Six Display Overvoltage And Undervoltage Protector transforms ordinary panels into intelligent guardians, continuously monitoring voltage for each phase and intervening the moment anomalies are detected.
This protector is engineered to protect sensitive machinery and industrial equipment from both overvoltage surges and undervoltage dips that can degrade motors, electronic devices, and control systems. Its fast-response microprocessor detects voltage excursions and disconnects the load before damage occurs. Once conditions stabilize, the device automatically reconnects the system after a configurable delay, ensuring smooth and safe recovery without manual intervention.
Beyond technical protection, this device provides peace of mind, making invisible electrical stresses visible and manageable. Whether on a factory floor, in an industrial plant, or a critical power distribution board, this protector acts as a silent sentinel, guarding equipment against unexpected voltage fluctuations that could disrupt operations or shorten service life.
With six digital displays, each phase’s voltage is clearly represented, offering immediate visual insight:
Simultaneously monitor all three phases and neutral
Instantly identify voltage irregularities
Simplify troubleshooting and reduce diagnostic time
Advanced microprocessor logic provides adaptive protection:
Detects harmful voltage dips and surges in milliseconds
Automatically disconnects equipment before damage occurs
Reconnects power safely after voltage stabilizes
Adjustable thresholds ensure accurate operation in diverse electrical environments
Designed to accommodate various applications:
Set overvoltage and undervoltage thresholds
Configure trip and recovery delay times
Fine-tune performance to match equipment sensitivity and operational conditions
Engineered for reliability in demanding environments:
DIN-Rail or panel mount compatible
Flame-retardant housing with robust insulation
Clear terminal labels for fast wiring
Resistant to electrical noise, vibration, and temperature fluctuations
Circuit breakers protect against overcurrent but are blind to voltage anomalies like brownouts or surges that damage motors and electronics at the microscopic level. This protector fills that critical gap by watching each phase continuously and acting proactively.
Voltage fluctuations are common in industrial and commercial settings due to load changes, grid instability, or long transmission lines. With this protector:
Motors run smoothly without overheating
Electronic controllers remain safe from unexpected spikes
Power systems recover seamlessly from transients
Maintenance time is reduced due to clear, real-time phase information
Imagine a workspace where every phase’s voltage is visible, controlled, and safeguarded — that’s the operational assurance this device provides.
| Rated supply voltage | AC 220V | AC80-400V | ||
| Operation voltage range | AC80V~400V (three phass) | AC140~700V (three phass) | ||
| Electric curent(>A)setting range | 1~40A/63A/80A/100A | |||
| Frequency | 50/60Hz | |||
| Overvoltage(>U)setting range | 230~300V | 390~500V | ||
| Undervoltage(<U)setting range | 210~140V | 370~260V | ||
| Rated current | 40A/63A/80A/100A | |||
| >U and <U trip delay | 0.1~30s | |||
| Reset/start deay | 1~500s | |||
| Rated insulation voltage | 400V | 700V | ||
| Output contacts | 3NO | |||
Fast, accurate voltage monitoring ensures that your system reacts only when necessary, protecting equipment while avoiding nuisance trips.
Six clear digital displays provide instant insight into the health of your power system, eliminating guesswork and reducing troubleshooting time.
By avoiding prolonged exposure to unsafe voltages, motors, electronics, and sensitive devices operate longer, quieter, and more efficiently, reducing maintenance costs.
Suitable for various industrial and commercial settings, this protector allows customized thresholds and delays to fit specific power conditions, enhancing system resilience.
Q: Can this protector prevent damage during voltage spikes?
A: Yes. It disconnects power automatically when voltage exceeds preset limits, safeguarding equipment from stress and failure.
Q: Does it reset automatically?
A: Yes. After voltage stabilizes and delay time elapses, the device reconnects power without manual intervention.
Q: Are voltage ranges adjustable?
A: Absolutely. Both overvoltage and undervoltage thresholds can be set to meet specific operational requirements.
Q: Can I install it in any standard panel?
A: It’s compatible with DIN-Rail and standard panel mounting, ensuring broad installation flexibility.
Q: Is this protector suitable for sensitive electronics and motors?
A: Definitely. Rapid detection and intelligent disconnection ensure that sensitive equipment remains protected from electrical stress.
