Three Phase LED Digital Voltmeter

NEW QUALITY UPGRADE & MORE DURABLE

Our three phase voltmeter has undergone a full quality upgrade. Precision engineered from the inside out, each component is meticulously inspected from material selection to final assembly. We utilize imported high quality chips and integrated welding technology to ensure fast core processing and stable performance. The shell is made of high strength flame retardant ABS material, which is acid and alkali resistant, oil resistant, anti aging and shockproof. Each product undergoes strict aging test, accuracy calibration and withstand voltage test before leaving the factory, ensuring highly secure and exceptionally durable performance.

• Measurement Accuracy: 0.5 Level

• Rated Frequency: 45~65Hz

• Operating Temperature: Up to 75°C

STRUCTURAL ANALYSIS

The voltmeter adopts a compact and scientific structure, including 6 core components:

1. TRANSPARENT PROTECTIVE COVER: Protects the screen from scratches and dust, ensuring long term clear display.

2. CONTROL BUTTON: Sensitive and responsive, supporting parameter setting, data query, and mode switching.

3. HIGH DEFINITION LED SCREEN: Large character display with strong anti interference capability, making data clear at a glance.

4. HIGH QUALITY CHIPS: Imported chips with integrated welding, ensuring 0.5 level measurement accuracy and stable performance.

5. FLAME RETARDANT CASING: High strength engineering plastic, anti aging, corrosion resistant, providing reliable safety protection.

6. TERMINAL BLOCK: High quality copper terminals with closer contact surface and higher wear resistance, ensuring secure wiring.

CORE ADVANTAGES

1. HIGH DEFINITION LED DISPLAY

The product is equipped with a high brightness LED digital display, which has the characteristics of high clarity, high contrast and wide viewing angle. The data display is clear at a glance, even in dim environments, it can be read easily. The display has stable performance, no flicker, no blur, and can maintain good working status for a long time, bringing convenient and intuitive voltage monitoring experience for users. The instrument has strong anti interference capability and high precision stable measurement.

2．IMPORTED HIGH QUALITY CHIPS

It adopts imported high quality chips, features integrated welding forming, and boasts fast core processing speed, high precision, and stable performance. The chip solder joints are uniform, and the components are precise, ensuring reliable operation and long service life.

3．OUR PRODUCTS VS. OTHER PRODUCTS

4.STURDY & SHOCK RESISTANT SHELL

The shell is made of high strength engineering plastic, and the surface has undergone fine processing until it is smooth and burr free, presenting a beautiful and elegant appearance. It has excellent shock resistance and compression resistance, can resist daily collision and mechanical vibration, and will not deform or damage. The material is anti corrosion and anti aging, suitable for long term stable use in various complex industrial environments, with the advantages of sturdy, shockproof, durable, and easy installation.

FLAME RETARDANT ABS MATERIAL

The shell adopts high performance flame retardant ABS engineering plastic with excellent flame retardant and insulation properties. It can effectively inhibit combustion and prevent fires caused by high temperatures generated by instruments due to faults such as short circuits and overloads, thus better ensuring the overall safety of the power system. The material is also acid and alkali resistant, oil resistant, and anti aging, with a long service life.

EASY TO INSTALL & SECURE WIRING

High quality terminal blocks are selected, neatly arranged, with good conductivity and safe to use. They are installed using a buckle (snap on) method, making them less prone to loosening. The terminal block has a closer contact surface and higher wear resistance, ensuring secure and reliable wiring. The snap on installation design allows for quick installation and disassembly, no need for complicated tools, suitable for various panel mounting scenarios.

INSTALLATION METHOD

1. Align the voltmeter with the mounting hole on the panel from the front.

2. Insert the voltmeter into the mounting hole until it is flush with the panel.

3. Install the snap on clips from the rear to fix the voltmeter firmly on the panel.

4. Connect the wiring according to the terminal layout diagram and wiring instructions.

PRODUCT DIMENSIONS

We provide a full range of three phase LED digital voltmeter models, including three common sizes:

COMPLETE SPECIFICATIONS

Good quality builds good reputation. Various quality certifications are only for more reliable products. Multiple models to choose from:

• 72mm×72mm

• 80mm×80mm

• 96mm×96mm

PRODUCT PARAMETERS

WIRING & TERMINAL LAYOUT

TERMINAL LAYOUT DIAGRAM

• Plug in terminal: Includes auxiliary power supply (L/N), communication (A+/B ), and voltage input (UA/UB/UC/UN) terminals.

• Crimp terminal: Simplified layout for basic voltage measurement and power supply, suitable for standard applications.

PRODUCT WIRING DIAGRAM

Supports multiple wiring modes:

• Three phase three wire system (with/without voltage transformer)

• Three phase four wire system (with/without voltage transformer)

• High voltage three phase three wire/four wire system (with voltage transformer)

WIRING INSTRUCTIONS

Voltage input: The input voltage should not exceed the rated input voltage of the product (100V or 400V). Otherwise, consider using a potential transformer (PT). For ease of maintenance, it is recommended to use a terminal strip.

Current input: The standard rated input current is 5A. For currents greater than 5A, an external CT should be used. If the CT used is connected to other instruments, the wiring should be in series. Before removing the current input wiring of the product, be sure to disconnect the CT primary circuit or short circuit the secondary circuit.

Phase sequence: Ensure that the input voltage and current correspond with each other, have consistent phase sequence, and are in the same direction; otherwise, errors in values and symbols may occur.

Wiring mode: The instrument can operate in either a three phase four wire mode or a three phase three wire mode. Users should choose the appropriate wiring mode based on the on site usage conditions.

AUTHORITATIVE CERTIFICATION

Our three phase LED digital voltmeter has passed professional laboratory testing and certification, in line with national and international industry standards. The whole production process implements strict quality control, including accuracy calibration, withstand voltage test, aging test and other links, ensuring the accuracy, safety and stability of each product. Authoritative certification provides a strong guarantee for global customers' bulk procurement and long term cooperation.

WIDELY USED

Our three phase LED digital voltmeter is widely used in:

• SUBSTATION: Power monitoring and voltage measurement

• AUTOMATION EQUIPMENT: Industrial process control and voltage monitoring

• FLOW PRODUCTION: Factory energy consumption monitoring and statistics

• DISTRIBUTION CABINET: Power distribution system voltage measurement and protection

• RESIDENTIAL BUILDING: Smart energy metering and household power management

• DEPARTMENT STORE: Commercial building energy consumption statistics and analysis

FAQ

1.WHAT IS THE MAIN FUNCTION OF THIS PRODUCT?

It is mainly used for measuring and monitoring three phase voltage in AC power systems, with functions of programmable measurement, LED display, and digital communication.

2.WHAT IS THE ACCURACY LEVEL?

It adopts 0.5 level high precision, which meets industrial measurement standards, ensuring accurate voltage data acquisition.

3.WHAT SIZES ARE AVAILABLE?

We provide three common sizes: 72mm×72mm, 80mm×80mm, and 96mm×96mm, to meet different installation needs.

4.WHAT IS THE INSTALLATION METHOD?

It adopts snap on panel mounting, which is simple and firm, suitable for various distribution cabinets and electrical equipment.

5.DOES IT SUPPORT DIGITAL COMMUNICATION?

Yes, it supports digital communication functions, which can realize data upload and remote monitoring, suitable for intelligent power management systems.

6.WHAT IS THE OPERATING TEMPERATURE RANGE?

The standard operating temperature is  20~70°C, and enhanced models can withstand up to 75°C, suitable for various industrial environments.

FOUR CORE SELLING POINTS

• FLAME RETARDANT CASING: Anticorrosion, wear resistant, insulating, and flame retardant, ensuring long term safe use.

• HIGH QUALITY TERMINAL BLOCK: Firmly installed, simple wiring, with closer contact and higher wear resistance.

• HIGH DEFINITION LED SCREEN: Clear data display, no cutting corners, more durable and easy to read.

• COMPLETE SPECIFICATIONS: Multiple models (72/80/96mm) to choose from, suitable for various installation scenarios.

ADVANTAGE SUMMARY

• PRECISION WORK: High quality, with exquisite craftsmanship applied to every detail.

• HIGH QUALITY CHIPS: Integrally welded and formed with measurement accuracy up to level 0.5.