Under Over Voltage Protection Device Dual display 2P 63A
Under Over Voltage Protection Device Dual display 2P 63A
The 2P 63A Under Over Voltage Protection Device is a DIN‑rail‑mount single‑phase AC protective relay with dual real‑time LED display for voltage and current readings. It delivers multi‑layer electrical safety: adjustable over‑voltage, under‑voltage and over‑current cutoff, programmable power‑on delay, fault recovery time, trip time and auto‑reset function. Full P‑series setup menu lets users customise thresholds, energy‑saving mode and hardware lock‑password to match local grid conditions. Compact 35 mm DIN‑rail footprint fits standard distribution boxes, widely applied for household, office and small‑commercial load protection against unstable mains power input. DC power input supports voltage‑only display.
The 2P 63A Under Over Voltage Protection Device is a DIN‑rail‑mount single‑phase AC protective relay with dual real‑time LED display for voltage and current readings. It delivers multi‑layer electrical safety: adjustable over‑voltage, under‑voltage and over‑current cutoff, programmable power‑on delay, fault recovery time, trip time and auto‑reset function. Full P‑series setup menu lets users customise thresholds, energy‑saving mode and hardware lock‑password to match local grid conditions. Compact 35 mm DIN‑rail footprint fits standard distribution boxes, widely applied for household, office and small‑commercial load protection against unstable mains power input. DC power input supports voltage‑only display.
Product Overview
The 2P 63A Adjustable V/A Protector is a compact 35 mm DIN‑rail‑mounted single‑phase AC protective device. Equipped with dual LED digital displays, it provides real‑time visual monitoring of circuit voltage and current. Multiple protection logics including over‑voltage, under‑voltage and over‑current prevent home and commercial loads from damage caused by grid fluctuation, surge and overload. All core parameters can be modified via the built‑in P‑code setup menu; auto‑recovery, energy‑saving mode and password lock‑out are supported for flexible on‑site configuration. Under DC supply condition, only voltage value will be displayed.
Core Features
- ✅ Dual real‑time LED display: Simultaneously show AC voltage & current status; DC input shows voltage only
- ✅ Full‑adjustable multi‑protection: Over‑voltage, under‑voltage, over‑current protection with configurable threshold values
- ✅ Rich programmable parameters: Power‑on delay, fault recovery time, voltage/current trip time, current counter, frequency adjustment
- ✅ Auto‑reset function: Automatically restore power supply once grid returns to safe working range
- ✅ Auxiliary functions: Energy‑saving mode, user‑setting password lock for preventing mis‑operation
- ✅ Standard DIN‑rail installation: 35 mm rail mounting for distribution cabinet / consumer unit
- ✅ Status indicator lights: Over‑voltage, under‑voltage, over‑current, power‑on working LED indicators
Main Parameter Table
| Item | Specification |
|---|---|
| Model name | LMGQ8-63D |
| Mounting | 35 mm DIN‑rail |
| Rated working voltage | Single‑phase AC 230V |
| Max rated current | 63A |
| Over‑voltage adjustable range | 130V‑300V |
| Under‑voltage adjustable range | 80V‑210V |
| Over‑current setting range | 1A‑63A |
| Trip‑time setting | 0.1‑10 s for voltage & current |
| Power‑on delay | 1‑999 s |
| Recovery delay | 1‑999 s |
| Dimension | 36 mm × 66 mm × 46 mm |
| Operation mode | Manual / Standard / Automatic display mode |
Setup Menu Brief Introduction

Users enter the P‑series setup menu for custom configuration:
- P‑1 ~ P‑8: Time, over‑voltage, under‑voltage thresholds & trip‑time parameters
- P‑9 ~ P‑16: Over‑current setting, current counter, frequency adjustment, auto‑reset switch
- P‑17: Action function ON/OFF toggle
- P‑18: Energy‑conserving mode enable/disable
- P‑19: Setting lock password (000‑999)
Application Scenarios
Residential household distribution boxes, small office power distribution, retail shop circuits, auxiliary equipment protection for unstable‑grid areas, single‑phase load over‑voltage / under‑voltage / overload safety guard.
Wiring Reminder
- L‑Line, N‑Neutral input terminals (IN); L‑N output terminals (OUT) connect to protected load.
- Follow wiring diagram strictly; professional electrician installation recommended.
If you need, I can generate HTML‑formatted code snippet (title, meta, alt‑text html snippets) or rewrite for Shopify / WordPress product block.
Product Overview
The 2P 63A Adjustable V/A Protector is a compact 35 mm DIN‑rail‑mounted single‑phase AC protective device. Equipped with dual LED digital displays, it provides real‑time visual monitoring of circuit voltage and current. Multiple protection logics including over‑voltage, under‑voltage and over‑current prevent home and commercial loads from damage caused by grid fluctuation, surge and overload. All core parameters can be modified via the built‑in P‑code setup menu; auto‑recovery, energy‑saving mode and password lock‑out are supported for flexible on‑site configuration. Under DC supply condition, only voltage value will be displayed.
Core Features
- ✅ Dual real‑time LED display: Simultaneously show AC voltage & current status; DC input shows voltage only
- ✅ Full‑adjustable multi‑protection: Over‑voltage, under‑voltage, over‑current protection with configurable threshold values
- ✅ Rich programmable parameters: Power‑on delay, fault recovery time, voltage/current trip time, current counter, frequency adjustment
- ✅ Auto‑reset function: Automatically restore power supply once grid returns to safe working range
- ✅ Auxiliary functions: Energy‑saving mode, user‑setting password lock for preventing mis‑operation
- ✅ Standard DIN‑rail installation: 35 mm rail mounting for distribution cabinet / consumer unit
- ✅ Status indicator lights: Over‑voltage, under‑voltage, over‑current, power‑on working LED indicators
Main Parameter Table
| Item | Specification |
|---|---|
| Model name | LMGQ8-63D |
| Mounting | 35 mm DIN‑rail |
| Rated working voltage | Single‑phase AC 230V |
| Max rated current | 63A |
| Over‑voltage adjustable range | 130V‑300V |
| Under‑voltage adjustable range | 80V‑210V |
| Over‑current setting range | 1A‑63A |
| Trip‑time setting | 0.1‑10 s for voltage & current |
| Power‑on delay | 1‑999 s |
| Recovery delay | 1‑999 s |
| Dimension | 36 mm × 66 mm × 46 mm |
| Operation mode | Manual / Standard / Automatic display mode |
Setup Menu Brief Introduction

Users enter the P‑series setup menu for custom configuration:
- P‑1 ~ P‑8: Time, over‑voltage, under‑voltage thresholds & trip‑time parameters
- P‑9 ~ P‑16: Over‑current setting, current counter, frequency adjustment, auto‑reset switch
- P‑17: Action function ON/OFF toggle
- P‑18: Energy‑conserving mode enable/disable
- P‑19: Setting lock password (000‑999)
Application Scenarios
Residential household distribution boxes, small office power distribution, retail shop circuits, auxiliary equipment protection for unstable‑grid areas, single‑phase load over‑voltage / under‑voltage / overload safety guard.
Wiring Reminder
- L‑Line, N‑Neutral input terminals (IN); L‑N output terminals (OUT) connect to protected load.
- Follow wiring diagram strictly; professional electrician installation recommended.
If you need, I can generate HTML‑formatted code snippet (title, meta, alt‑text html snippets) or rewrite for Shopify / WordPress product block.
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