Medidor de energia inteligente Schneider NK4G4B

1. Informações Básicas

Interpretação do modelo

N: Schneider Electric Low-voltage Terminal Product Series

K: Energy Meter Category

4G: Built-in 4G Wireless Communication Module

4: Design Serial Number

B: Special Function Version

Product Positioning

A 4G IoT smart energy meter launched by Schneider Electric, designed specifically for remote monitoring, prepayment management, and energy data analysis. It is suitable for residential, comercial, e cenários industriais.

Core Parameters

1. Product Features and Functions
2. Powerful Metering Capability

Bidirectional metering of active/reactive energy (four-quadrant metering)

Measurement of phase-by-phase voltage, atual, power, and power factor

Support for 2nd-31st harmonic analysis (opcional)

Recording of abnormal events such as voltage loss, current interruption, and reverse phase sequence

2. 4G IoT Communication

Built-in 4G module with automatic network connection (includes 8 years of free data traffic)

Remote real-time monitoring; check electricity consumption data via mobile phone/PC anytime, anywhere

Support for MQTT/HTTP/TCP transparent transmission protocols, enabling seamless integration with energy management platforms

3. Intelligent Management Functions

Prepayment management: Pay before use, automatic power cut-off when balance is insufficient

Multi-tariff (peak-valley-flat) billing with support for time period setting

Remote switch-on/off control (suitable for rental housing management)

Abnormal electricity consumption alarm (sobrecarga, leakage, voltage abnormality, etc.)

Frozen data (daily/monthly/yearly) storage for convenient electricity consumption analysis

4. Safety and Reliability

Anti-tampering design with cover-opening alarm function

Encrypted data transmission to prevent tampering

Wide voltage operating range (85%-115% of rated voltage)

Built-in clock (accuracy ≤0.5 seconds/day) with daylight saving time support

III. Cenários de aplicação

1. Rental Housing/Apartment Management

Remote monitoring of electricity consumption of each tenant, with real-time display via APP

Prepayment function avoids electricity fee arrears

Remote power on/off control for convenient management

Daily detailed electricity consumption data, which can be used to determine occupancy status

2. Commercial Complexes/Office Buildings

Zonal metering for accurate cost accounting

Energy consumption monitoring and analysis to optimize energy usage

Multi-tariff billing to reduce electricity costs

Integration with building management systems to achieve intelligent control

3. Industry/Manufacturing

Equipment energy consumption analysis to optimize production processes

Load monitoring to prevent equipment failures

Power quality monitoring to ensure stable equipment operation

Electricity cost allocation for refined management

1. Installation Guide
2. Pre-installation Preparation

Essential Tools

Insulated tools (voltage tester, insulated gloves)

Screwdrivers (flathead/crosshead), torque wrench (2-4N·m)

Wire stripper (stripping length 8-10mm)

Cables (main circuit: ≥4mm² copper core wire; control circuit: ≥1.5mm²)

35mm DIN rail (length ≥15cm)

Cable terminals, cable ties, phase sequence labels

Precauções de segurança

Power must be disconnected and no voltage confirmed before installation

Installation shall only be performed by certified electricians in compliance with electrical safety regulations

Inspect all wiring before restoring power after installation

2. Etapas de instalação

Step 1: Meter Fixing

Select a dry, well-ventilated, and vibration-free location

Align the rail clips on the back of the meter with the 35mm DIN rail

Press down firmly until a “click” sound is heard to ensure secure installation (see Figure 1)

Step 2: Main Circuit Wiring (Three-phase Four-wire)

Operation Key Points

Strip wire insulation to a length of 8-10mm to ensure no exposed copper strands

Use matching terminals and crimp securely for good contact

Tighten screws to the specified torque (2-4N·m) to prevent loosening

Step 3: Control Circuit and Communication Connection

RS485 communication: Connect A to A, B to B, and ground the shielding layer

4G antenna: Screw the antenna onto the antenna interface of the meter case to ensure good signal reception

3. Post-installation Inspection

Inspeção de fiação

Confirm all connections are tight without loosening or short circuits

Check that the phase sequence is correct (L1→L2→L3)

Verify that the PE wire is properly grounded

Function Test

Turn on the power and check if the LCD display works normally

Inspect the status of indicator lights (power, comunicação, alarm, etc.)

Test remote connection via APP or management platform

Verify that functions such as prepayment and alarm work properly

1. Operation and Maintenance
2. Basic Operation

LCD Display

The main interface displays total electricity consumption (kWh)

Pressione o “▲” e “▼” keys to switch and display phase-by-phase parameters, power, tariffs, etc..

Pressione o “OK” key to enter the menu and view detailed information

Remote Access

Download the matching APP (por exemplo, Schneider EcoStruxure)

Bind the meter by scanning the QR code on the meter or entering the device ID

Real-time monitoring, parameter setting, and recharge via the APP

2. Recomendações de manutenção

Inspeção Regular (Monthly)

Check if terminals are loose (especially in vibrating environments)

Observe if the LCD display works normally without missing segments

Inspect communication indicator lights for normal operation (4G signal strength ≥ 2 bars)

Record meter readings and compare with electricity consumption data

Long-term Maintenance (Quarterly)

Clean the meter case with a dry cloth (solvents are prohibited)

Check if the installation is secure without displacement

Verify that the 4G antenna connection is intact

1. Common Problems and Solutions

Vii. Resumo

The Schneider NK4G4B Smart Energy Meter integrates high-precision metering, 4G remote monitoring, and intelligent management, making it an ideal choice for modern energy management. Proper installation and operation can bring the following benefits:

1. Improve management efficiency: Remote monitoring replaces manual meter reading, enabling real-time control of electricity consumption anytime, anywhere
2. Reduce operating costs: Prepayment management avoids arrears, and multi-tariff billing optimizes electricity expenses
3. Enhance safety: Abnormal monitoring and alarm functions, combined with anti-tampering design, ensure electricity usage safety
4. Data-driven decision-making: Detailed electricity consumption data analysis helps improve energy efficiency

Installation Key Points: Power-off operation, correct wiring (especially PE grounding), secure fixing, good ventilation, and antenna optimization.

Reminder: Após a instalação, it is recommended to keep the product label and installation records for future maintenance and inspection. For technical support, please contact Schneider Electric customer service hotline.