JIUJI WiFi Multi-Function Protector with Last State Memory – 63A, 220V AC

Protect your electrical system smarter with the JIUJI WiFi Multi-Function Protector with Last State Memory – 63A, 220V AC, now available in Bangladesh from STCMart. Designed for modern homes, offices, shops, commercial spaces, and electrical distribution systems, this intelligent protection device combines multiple electrical protection functions with WiFi remote monitoring, energy measurement, automatic recovery, and smart control in one compact DIN-rail-mounted unit.

Based on the JIUJI JJMVPD-63LWS platform, this smart protector is designed to monitor important electrical parameters and disconnect the power supply when abnormal conditions such as over-voltage, under-voltage, over-current, or leakage are detected. Once the electrical condition returns to a safe range, the device can automatically restore the power after the configured recovery delay.

Smart Electrical Protection for Modern Homes & Businesses

Voltage fluctuations are a common concern in many electrical installations. Sudden high voltage, low voltage, excessive current, leakage, unstable supply, or unexpected power restoration can potentially affect sensitive appliances and electrical equipment.

The JIUJI WiFi Multi-Function Protector provides several layers of protection in a single device. Instead of using separate monitoring devices for different parameters, users can monitor and configure multiple protection functions from the device itself and, with the WiFi version, remotely through the Tuya Smart / Smart Life ecosystem.

1. Over-Voltage Protection

When the supply voltage rises above the configured safe level, the protector can automatically disconnect the load. The JJMVPD-63LWS supports an adjustable over-voltage protection range of approximately 230V–300V, with a default setting around 270V. The recovery threshold can also be configured according to system requirements.

This feature can help protect electrical appliances and equipment from abnormal high-voltage conditions.

2. Under-Voltage Protection

Low voltage can also create problems for electrical equipment, particularly appliances and loads that require stable operating voltage.

The JJMVPD-63LWS provides adjustable under-voltage protection from approximately 140V–210V, with a default setting around 170V. When the voltage falls below the configured threshold, the device can disconnect the circuit and restore power after the supply returns to an acceptable range.

3. Adjustable Over-Current Protection

The device supports adjustable over-current protection up to its 63A rated current. For the 63A model, the protection setting can be adjusted within the specified operating range, allowing users to configure the device according to the connected electrical load.

This makes it suitable for a variety of single-phase applications where monitoring and protection against excessive current are required.

4. Leakage Protection

One of the important features of the JJMVPD-63LWS is its integrated leakage protection function. The available technical documentation specifies an adjustable leakage protection range of approximately 10–99mA, with a default setting around 20mA.

This provides an additional layer of protection for electrical circuits where leakage-current monitoring is required.

Important: This device should not automatically be considered a replacement for every dedicated MCB, RCBO, RCCB/RCD, or other required protective device. Final protection architecture should be selected according to the electrical installation, load characteristics, and applicable standards.

5. WiFi Remote Monitoring & Control

The biggest advantage of the WiFi version is smart connectivity.

After connecting the device to a compatible 2.4GHz WiFi network, users can monitor and control the electrical system remotely through supported smart-home applications such as Tuya Smart or Smart Life, depending on the device/app configuration.

This means you can manage your electrical supply without being physically beside the distribution board.

It can be particularly useful for:

• Smart homes
• Shops and offices
• Rental properties
• Small commercial facilities
• Remote electrical equipment
• Electrical monitoring applications
• Solar-related electrical systems

6. Built-In Energy Monitoring

The JIUJI multi-function protector is more than a conventional voltage protection device. It includes integrated metering functions for monitoring electrical parameters such as voltage, current, power, energy consumption (kWh), frequency, and power factor, depending on the displayed measurement mode.

This gives users better visibility into how their electrical system is operating and can help identify unusual consumption or load conditions.

7. Last State / Power-Failure Memory

The Last State Memory function is especially useful in areas where power interruptions and load-shedding occur.

The device can retain its configured operating state/settings after a power failure, helping provide predictable operation when electricity returns. Technical documentation for the JJMVPD-63LWS identifies power-failure memory as a supported feature.

This can be useful when managing appliances, equipment, and electrical systems that need consistent behavior after power restoration.

8. Automatic Reconnection

When an abnormal voltage, current, or leakage condition occurs, the protector can disconnect the power. Once the electrical condition returns to the configured safe range, the device can automatically reconnect after a preset delay.

The recovery delay is adjustable, with documentation specifying a range of 1–999 seconds and a default of approximately 30 seconds.

This automatic recovery feature can reduce the need for manual resetting after temporary electrical abnormalities.

9. Digital Display

The built-in digital display provides convenient access to important electrical information. Depending on the display mode, users can view parameters including voltage, current, leakage, frequency, power, energy consumption, and power factor.

For electricians, engineers, and facility managers, having these parameters available directly from the protection device makes basic electrical monitoring much easier.

10. Compact DIN-Rail Installation

The JIUJI JJMVPD-63LWS is designed for DIN-rail installation, making it suitable for electrical distribution boards and control panels.

Its compact body is approximately 95mm × 39mm × 70mm, allowing convenient installation where panel space is limited.

Technical Specifications

Technical specifications are based on available JJMVPD-63LWS documentation and may vary by production version; please verify the exact specification on the supplied product before installation.

Where Can You Use JIUJI 63A WiFi Protector?

The JIUJI WiFi Multi-Function Protector is suitable for many single-phase electrical applications, including:

• 🏠 Residential homes and apartments
• 🏢 Offices and commercial buildings
• 🏪 Shops and small businesses
• 🏨 Hotels and guest houses
• ❄️ Air-conditioning and appliance circuits
• ⚡ Distribution boards
• 🔋 Selected solar and backup-power applications
• 🏭 Small industrial and electrical control applications

Its combination of electrical protection, metering, WiFi connectivity, and automatic recovery makes it particularly attractive for users looking for a smart electrical protection solution rather than a conventional protection-only device.

Why Buy JIUJI JJMVPD-63LWS from STCMart Bangladesh?

STCMart offers the JIUJI WiFi Multi-Function Protector for customers looking for smart electrical protection products in Bangladesh.

Whether you are an electrician, electrical engineer, contractor, solar installer, business owner, or homeowner, STCMart provides access to modern electrical and solar products with nationwide delivery support.

With the JIUJI JJMVPD-63LWS, you get multiple functions in one compact device:

✅ 63A capacity
✅ 220V AC single-phase application
✅ Over-voltage protection
✅ Under-voltage protection
✅ Over-current protection
✅ Leakage protection
✅ WiFi remote monitoring/control
✅ Built-in energy monitoring
✅ Digital display
✅ Automatic recovery
✅ Last State / Power Failure Memory
✅ DIN-rail installation

Upgrade Your Electrical Protection

Don’t wait until unstable voltage or excessive current damages your valuable appliances. Upgrade your electrical distribution system with a JIUJI WiFi Multi-Function Protector 63A and bring smarter monitoring and protection to your home or business.

Buy JIUJI JJMVPD-63LWS from STCMart Bangladesh today and experience smart electrical protection, remote monitoring, and intelligent power management in one compact device.

📞 For price, availability, installation guidance, and delivery information, contact STCMart today.

Frequently Asked Questions

1. What is the JIUJI JJMVPD-63LWS?
The JIUJI JJMVPD-63LWS is a 63A WiFi-enabled multi-function electrical protector designed for single-phase electrical systems. It combines over-voltage, under-voltage, over-current, leakage protection, energy monitoring, automatic recovery, and smart WiFi control.

2. Is the JIUJI JJMVPD-63LWS suitable for 220V systems?
Yes. It is designed for single-phase applications and is commonly used with 220V/230V electrical systems.

3. What is the maximum current rating?
The model is rated at 63A, with adjustable over-current protection according to the device’s specified operating range.

4. Can I control the device remotely?
Yes. The WiFi version supports remote monitoring and control through compatible smart-home applications such as Tuya Smart or Smart Life.

5. Does it protect against high and low voltage?
Yes. The protection thresholds for over-voltage and under-voltage can be adjusted according to the installation requirements.

6. Does it provide leakage protection?
Yes. The JJMVPD-63LWS includes adjustable leakage protection, with technical documentation specifying approximately 10–99mA.

7. Does it automatically restore power?
Yes. After an abnormal electrical condition is cleared and the supply returns to the configured safe range, the device can automatically reconnect after the selected recovery delay.