China Three Phase WIFI Energy Meter Protector Manufacturer, Factories

A smart three-phase energy meter is an advanced electronic device used to measure and monitor electrical energy consumption in three-phase AC power systems. It accurately records parameters like voltage, current, power, and energy usage for each phase. Equipped with communication modules, it enables remote, real-time data reading, load analysis, and fault detection. This supports efficient energy management, billing automation, and grid optimization in industrial, commercial, and large-scale residential applications.

Product Description

Product Specifications
Material PC Flame Retardant, Red Copper
Rated Voltage 60-300V 50, 60HZ (Note: If your voltage is 110 VAC, the protector will provide undervoltage guard the first time you use it. Please change the overvoltage (60-300 V) and undervoltage (60-300 V) to suit your requirements.)
Rated Current 100A
Voltage Upper Limit 60-300V (Default 275V)
Voltage Lower Limit 60-300V (Default 175V)
Overcurrent Guard 1A-100A (Adjustable) (Default: 80A)
Undercurrent Guard 1A-100A (Adjustable) (Default: Off)
Guard Delay Manual 0000-9999 Seconds (Default 5 Seconds)
Under and Over Voltage Guard Delay Manual 0000-9999 Seconds (Default 20 Seconds)
Current Overload Lower Limit Delay 0000-9999 Seconds (Default 5 Seconds)
Current Overload Upper Limit Delay 0000-9999 Seconds (Default 5 Seconds)
Current Guard Upper Limit Delay 0000-9999 Seconds (Default 60 Seconds)
Voltage Unbalance Guard 10-100% (Adjustable) (Default Off)
Current Unbalance Guard 10-100% (Adjustable) (Default Off)
Overheat Guard 10-85°C (Adjustable) (Default 85°C)
Phase Sequence Guard On and Off (Default On)
Temperature -20-60°C
Humidity ≤85%
Altitude Up to 2000m / 6561.68ft
Wiring Capacity Insulated copper wire below 35 square millimeters
Installation 35mm Guide Rail
Remote Control Via Smart Life, Tuya anytime, anywhere
Timer Timing, Countdown, Cycle Time
Voice Control Alexa, Google Assistant
Key Features & Advantages

1 Multifunctional

This WIFI energy meter protector allows you to easily monitor 3 phase voltage, current, power factor, frequency and other important parameters with complete convenience.

2 Secure And Reliable

Provides a comprehensive series of conservation functions such as surge guard, under voltage guard, overload guard, under current guard, time delay guard, voltage imbalance guard, current imbalance guard, and phase loss guard.

3 Quick Response

Guards against overvoltage, undervoltage, or overcurrent conditions by immediately interrupting the power supply to prevent damage. Automatically turns on again once voltage normalizes.

4 Backlight LCD Display

Features a clear display for easy viewing in low-light environments, with a backlight that automatically turns white when the guard is functioning properly.

5 Sturdy And Robust

Manufactured from premium flame-retardant PC and high-conductivity red copper materials for enhanced durability, abrasion resistance, and extended operational life.

Primary Use Cases
⚙️ Industrial Manufacturing

Ideal for factories, workshops, and assembly lines to monitor and optimize power consumption of heavy industrial equipment.

🏢 Commercial Buildings

Designed for office towers, shopping malls, and hospitality centers requiring individual unit sub-metering and smart energy management.

🏥 Public Facilities

Applied across hospitals, schools, and transportation hubs to ensure continuous, highly stable power distribution for critical equipment.

🌱 Renewable Energy

Optimized for solar generation plants and EV charging infrastructure to achieve bidirectional measurement and automated load balancing.

Detail Images
Frequently Asked Questions
Q: How do I configure the device for 110V AC electrical systems?

If your working voltage is 110 VAC, the device may trigger undervoltage protection automatically upon first use. Simply enter the settings via the screen or mobile app to calibrate the overvoltage and undervoltage parameters to suit your grid standard.

Q: Which mobile applications and voice assistants are compatible?

The device supports standard Tuya and Smart Life mobile apps for continuous remote control and parameter setting. It also supports voice control through Amazon Alexa and Google Assistant.

Q: Does the protector automatically reclose after an electrical fault?

Yes, once the voltage, current, or related circuit conditions normalize, the protector completes the preset guard delay cycle and automatically restores power safely to connected loads.

Q: What is the rail mounting standard and conductor wiring capacity?

The device is engineered for standard 35mm DIN-rail enclosures and accepts copper wire connections up to 35 square millimeters.

Q: Can I customize delay times and current limit thresholds?

Yes, the overcurrent limit can be set from 1A to 100A, and action delay settings are fully configurable between 0000 and 9999 seconds to meet specific load demands.

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