접촉기,회로 차단기,태양광 인버터,전기 계량기,태양 전지
- 기본정보
모델 해석
N: 슈나이더 일렉트릭 Low-voltage Terminal Product Series
케이: Energy Meter Category
4G: Built-in 4G Wireless Communication Module
4: Design Serial Number
비: Special Function Version
제품 포지셔닝
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, 광고, 및 산업 시나리오.
핵심 매개변수
| 매개변수 항목 | 사양 |
| Phase/ Wiring System | Three-phase Four-wire (3×220/380V) or Three-phase Three-wire (3×380V) |
| 정격전류 | 5(60)에이, 10(100)에이, 등. (expandable with current transformers) |
| 정확도 등급 | Active Power: 클래스 0.5S / 수업 1; Reactive Power: 수업 2 |
| 주파수 범위 | 50/60헤르츠 (±5%) |
| 작동 온도 | -25℃ ~ +60℃ |
| 보관 온도 | -40℃ ~ +70℃ |
| 보호 등급 | IP51 (전면 패널), IP30 (meter body) |
| Communication Method | 4G (multi-network compatibility) + RS485 (Modbus/DL/T645 Protocol) |
| 치수 (mm) | 대략. 126×110×71 (L×W×H) |
| 장착 방법 | 35mm 표준 DIN 레일 (빠른 스냅온 설치) |
- Product Features and Functions
- Powerful Metering Capability
Bidirectional metering of active/reactive energy (four-quadrant metering)
Measurement of phase-by-phase voltage, 현재의, 힘, 및 역률
Support for 2nd-31st harmonic analysis (선택 과목)
Recording of abnormal events such as voltage loss, current interruption, and reverse phase sequence
- 4G IoT Communication
Built-in 4G module with automatic network connection (포함 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
- 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 (초과 적재, 누출, voltage abnormality, 등.)
Frozen data (daily/monthly/yearly) storage for convenient electricity consumption analysis
- 안전성과 신뢰성
Anti-tampering design with cover-opening alarm function
Encrypted data transmission to prevent tampering
Wide voltage operating range (85%-115% 정격전압의)
Built-in clock (accuracy ≤0.5 seconds/day) with daylight saving time support
III. 응용 시나리오
- 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
- 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
- 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
- 설치 가이드
- 설치 전 준비
Essential Tools
Insulated tools (전압 테스터, 절연 장갑)
드라이버 (flathead/crosshead), 토크 렌치 (2-4N·m)
Wire stripper (stripping length 8-10mm)
Cables (주회로: ≥4mm² copper core wire; control circuit: ≥1.5mm²)
35mm DIN 레일 (length ≥15cm)
Cable terminals, 케이블 타이, phase sequence labels
안전 예방 조치
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
- 설치 단계
단계 1: Meter Fixing
Select a dry, 통풍이 잘되는, and vibration-free location
Align the rail clips on the back of the meter with the 35mm DIN rail
Press down firmly until a “딸깍 하는 소리” sound is heard to ensure secure installation (see Figure 1)
단계 2: 주회로 배선 (Three-phase Four-wire)
| 터미널 마킹 | 연결 내용 | 비고 |
| L1/L2/L3 | Three-phase power supply incoming lines (활선) | Connected to the outgoing terminal of the circuit breaker |
| N | Neutral incoming line | Connected to the power supply neutral wire |
| T1/T2/T3 | Three-phase load outgoing lines | Connected to electrical equipment |
| 테네시 | Load neutral line | Connected to the load neutral wire |
| 체육 | Grounding terminal | Must be reliably grounded (yellow-green dual-color wire) |
운영 핵심 포인트
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
단계 3: Control Circuit and Communication Connection
RS485 통신: 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
- 설치 후 검사
배선검사
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
기능 테스트
Turn on the power and check if the LCD display works normally
Inspect the status of indicator lights (힘, 의사소통, 경보, 등.)
Test remote connection via APP or management platform
Verify that functions such as prepayment and alarm work properly
- 운영 및 유지보수
- Basic Operation
LCD 디스플레이
The main interface displays total electricity consumption (kWh)
다음을 누르세요. “▲” 그리고 “▼” keys to switch and display phase-by-phase parameters, 힘, 관세, 등.
다음을 누르세요. “좋아요” key to enter the menu and view detailed information
원격 액세스
Download the matching APP (예를 들어, Schneider EcoStruxure)
Bind the meter by scanning the QR code on the meter or entering the device ID
Real-time monitoring, 매개변수 설정, and recharge via the APP
- 유지 관리 권장 사항
정기점검 (월간 간행물)
Check if terminals are loose (특히 진동이 심한 환경에서)
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
장기 유지보수 (계간지)
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
- 일반적인 문제 및 해결 방법
| 문제 | 가능한 원인 | 솔루션 |
| No LCD display | 전원이 연결되지 않음 / incorrect wiring | Check power supply and wiring to confirm normal voltage |
| Communication failure | Weak 4G signal / data traffic arrears | Adjust antenna position and confirm valid data traffic package |
| Abnormal metering | 느슨한 배선 / incorrect phase sequence | 배선을 확인하세요, confirm correct phase sequence, and retighten connections |
| Remote control failure | Permission setting issues / network delay | Check APP permissions and retry the operation or try again later |
| Excessive meter heating | 초과 적재 / 통풍이 잘 안됨 | 부하 확인, ensure good ventilation, and reduce capacity if necessary |
Ⅶ. 요약
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:
- Improve management efficiency: Remote monitoring replaces manual meter reading, enabling real-time control of electricity consumption anytime, anywhere
- Reduce operating costs: Prepayment management avoids arrears, and multi-tariff billing optimizes electricity expenses
- Enhance safety: Abnormal monitoring and alarm functions, combined with anti-tampering design, ensure electricity usage safety
- Data-driven decision-making: Detailed electricity consumption data analysis helps improve energy efficiency
설치 요점: 전원 끄기 작동, 올바른 배선 (especially PE grounding), secure fixing, good ventilation, and antenna optimization.
Reminder: 설치 후, 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.
