WEM3046TE 数据手册

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1 主要特性

Designed for double-CT installation scenarios
Comes with 3 x 5A, 10mm split-core CTs for retrofit projects
Suitable when the existing primary CT is already connected to a utility meter and rewiring is not allowed
专为三相四线WYE/星形系统设计
通过Wi-Fi网络进行实时能耗监测
一键Wi-Fi设置，轻松连接网络
Enterprise-class performance, suitable for commercial, industrial, and retrofit energy monitoring projects
支持云服务和移动应用
支持通过LAN本地监测或将数据上传至指定服务器
2极DIN导轨安装，整齐适配电表箱

2 通用规格

规格参数	描述
Standard package	1. Wi-Fi Energy Meter (WEM3046TE) x 1 2. Split-core Current Transformer x 3 3. 2.4G Wi-Fi Antenna x 1
相数	三相 (三相四线WYE/星形系统)
电源	内置通用电源
通信	内置Wi-Fi
天线	外置2.4G SMA公头天线
CT accessory	3 x 5A, 10mm split-core CTs
上报间隔	1-5分钟间隔，通常为1分钟
上报内容	有功电能(正向和反向)、有功功率、电压、电流、频率
Configuration	1. Wi-Fi access point and webpage for setting SSID and password 2. Mobile app for setting SSID and password
监测场景	1. 在IAMMETER-Cloud上监测 2. 通过WLAN在本地PC上监测(HTTP GET接口) 3. 集成第三方服务器，如自有服务器、PVoutput、Home Assistant(TCP/SSL接口)

3 电气特性

规格参数	描述
Input Voltage	80V～277VAC (Phase Voltage), 140V～480VAC (Line Voltage)
CT Rating	5A input, using the included 5A split-core CTs for double-CT installation
CT opening size	10mm
测量精度	1. 电压: ±1.0% 2. 电流: ±1.0% 3. 有功功率: ±1.0% 4. 有功电能: IEC62053-21定义的1级
Typical power consumption	≤2W (220VAC input)

4 机械特性

规格参数	描述
Weight	0.3Kg
Dimension	90.27157.5mm (2 DIN pole)
Protection	IP51
Connection	1. AC input: UA-Live wire Phase A, UB-Live wire Phase B, UC-Live wire Phase C, UN-Neutral wire 2. RS485 interface: A-Positive, B-Negative 3. CT input: IA+ is Positive Phase A, IA- is Negative Phase A; IB+ is Positive Phase B, IB- is Negative Phase B; IC+ is Positive Phase C, IC- is Negative Phase C 4. SMA port: External Antenna Port

5 应用说明

WEM3046TE is a variant of WEM3046T, designed specifically for double-CT installation scenarios.

Unlike WEM3046T, which accepts direct 5A CT input from third-party CTs, WEM3046TE comes with three external 5A split-core CTs. These CTs can be clamped onto the cable of the existing primary CT in the distribution board.

WEM3046TE is suitable for scenarios such as:

Retrofit projects where the existing utility meter and CT wiring cannot be modified
Sites where the primary CT is already installed and cannot be shared directly
Installations requiring non-intrusive monitoring on existing 5A CT circuits

6 环境条件

规格参数	描述
工作温度	-20～+60℃
Operating Humidity	5～95%
Altitude	0～3000m

7 Wi-Fi 网络

规格参数	描述
WLAN	信道:自动安全:WPA2-PSK
SSID	iMeter_xxxxxxxxx (8位序列号), 无密码
配置页面	URL:http://11.11.11.1 登录用户名: admin 密码: admin

8 Wi-Fi Parameters

规格参数	描述
Wi-Fi Mode	Support WiFi 802.11b/g/n, Wi-Fi frequency 1-13
Transmit power	18.5dBm@11b, 15.5dBm@11g, 14.5dBm@11n
Wi-Fi Frequency	2.400 ~ 2.472GHZ
Transmit Speed	3686400bps at highest
Maximum Connections	8
Wi-Fi Antenna	External, 5dBi gain

9 RS485 interface

规格参数	描述
协议	Modbus-RTU
Data format	“n,8,1”
波特率	1200, 2400, 4800, 9600Bps; 默认9600Bps

10 Indicator

指示灯	描述
RUN	上电后常亮，Wi-Fi模块与电表通信时闪烁
REV	以下情况常亮： 1. 任何一相电流与CT底部标示方向相反，或 2. CT连接至错误相位
WIFI	Wi-Fi模块连接到路由器后常亮