1408-EM3A-ENT - Ethernet Energy Monitor | Allen-Bradley
料号： 1408-EM3A-ENT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
1408-EM3A-ENT 概述
An energy monitor is an electrical measurement device that records voltage, current, real power, reactive power, apparent power, power factor, and energy consumption. In the industrial automation hierarchy, this product belongs to the power-monitoring and metering class, rather than a semiconductor or passive electronic component. It provides plant-floor information to programmable controllers, energy-management software, and networked control systems.
The 1408-EM3A-ENT is useful where an installation requires both local electrical measurement and network communication. Ethernet connectivity allows the monitor to participate in EtherNet/IP or Modbus TCP systems, while RS-485 supports DF1 and Modbus RTU integrations. The reported 5 A rating identifies the monitored current class, while the 120/240V AC supply specification defines its operating power input.
Typical deployments include industrial control panels, distribution centers, and motor control centers. The monitor can support real-time energy reporting, demand management, and electrical diagnostics without treating the unit as a general-purpose power-quality analyzer. Its communication capabilities make it suitable for systems that need measured parameters sent to programmable controllers or custom software applications.
Installation planning should confirm the voltage rating, current-transformer configuration, communication protocol, network topology, and controller compatibility before energizing the monitor. Because the product is a panel-mounted industrial instrument, wiring, terminal access, grounding, and configuration procedures should follow the applicable Rockwell Automation instructions. Published pricing, exact accuracy details, dimensions, environmental ratings, and full electrical limits were not supplied in the retrieved data and are therefore marked for verification.
This page combines the verified manufacturer and distributor product information, communication capabilities, application context, and selection trade-offs. It distinguishes documented Ethernet and serial functionality from unsupported assumptions and avoids presenting missing electrical or mechanical specifications as confirmed values.
直接替换替代料： 1408-EM3A-ENT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
1408-EM3A-ENT
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联系询价
查看数据手册 →1408-EM3A
✅ 直接替换📋 参考替代料（不在目录中）
1408-EM3A-ENT
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →1408-EM3A-ENT 规格参数
| Product Type | PowerMonitor 1000 energy monitor |
| Model | 1408-EM3A-ENT |
| Functionality | EM3 energy, demand, and power monitoring |
| Power Supply | 120/240V AC |
| Ammeterage Rating | 5 A |
| Serial Communication | RS-485 |
| Ethernet Communication | 10Base-T Ethernet |
| DF1 Communication | DF1 full-duplex and half-duplex |
| Modbus RTU | Supported |
| EtherNet/IP | Supported |
| Modbus TCP | Supported |
| Measured Energy Parameters | kW, kVAR, kVA, power factor, and kWh |
| Demand Monitoring | Projected, actual, and power-factor demand |
| Application Environment | Industrial control panels, distribution centers, and motor control centers |
| Country of Origin | MX |
1408-EM3A-ENT standard 引脚配置指南
1408-EM3A-ENT（standard 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： 1408-EM3A-ENT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
1408-EM3A-ENT 适用于 6 应用s: Industrial Control Panel Energy Monitoring, Distribution Center Load Profiling, Motor Control Center Monitoring, EtherNet/IP Energy Management Network, Modbus RTU Energy Data Collection, Demand and Cost Allocation System.
Industrial Control Panel Energy Monitoring
The 1408-EM3A-ENT fits industrial control panels that need continuous electrical information alongside machine-control equipment. Its EM3 functionality monitors energy-management attributes and adds projected demand, actual demand, and power-factor demand. Install it where the control system can consume kW, kVAR, kVA, power factor, and kWh data through EtherNet/IP, Modbus TCP, DF1, or Modbus RTU. Compared with a local display-only meter, the documented Ethernet and RS-485 interfaces allow measured parameters to be used by programmable controllers or energy-management software.
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Distribution Center Load Profiling
The 1408-EM3A-ENT is appropriate for distribution-center load profiling where operators need to understand where electrical energy is being used. Its documented EM3 energy and demand functions provide the kind of information required for cost allocation and energy control. The 120/240V AC supply and 5 A ammeterage rating support the identified product class, while EtherNet/IP and Modbus TCP enable networked reporting. Installers should confirm current-transformer and measurement-range details in the full manufacturer documentation before assigning revenue or billing functions.
推荐
Motor Control Center Monitoring
The 1408-EM3A-ENT can support motor-control-center monitoring when real-time electrical and energy information is needed for diagnostics or energy reporting. The EM3 model monitors energy attributes and demand-related measurements, while the communication options allow a programmable controller or custom software application to receive the data. This is useful when operators want a common measurement platform across multiple motor-related loads. The supplied data does not specify motor-load limits, harmonic analysis, or specialized motor-protection functions, so it should not be treated as a protection relay.
推荐
EtherNet/IP Energy Management Network
The 1408-EM3A-ENT is suited to EtherNet/IP-based energy-management networks because Rockwell Automation explicitly identifies EtherNet/IP support and a 10Base-T Ethernet port. A controller or industrial software application can use the network connection to monitor electrical parameters without relying only on a local display. The same unit also supports Modbus TCP, which provides flexibility when the plant network is organized around Modbus rather than EtherNet/IP. Exact network settings and data objects must be configured using the manufacturer’s documentation.
推荐
Modbus RTU Energy Data Collection
The 1408-EM3A-ENT supports Modbus RTU over RS-485, making it useful for installations that collect energy and demand information through a serial industrial network. Reported parameters include kW, kVAR, kVA, power factor, and kWh, with EM3 demand functions adding projected and actual demand information. This allows existing RS-485 infrastructure to incorporate networked energy monitoring instead of relying exclusively on manual readings. Baud rate, addressing, termination, and register details were not included in the supplied snippets and must be verified before commissioning.
推荐
Demand and Cost Allocation System
The 1408-EM3A-ENT can serve as a measurement source in a demand and cost-allocation system because its EM3 functionality adds projected demand, actual demand, and power-factor demand monitoring. Reported energy parameters can be communicated to applications for load analysis and energy control. It is best suited to industrial metering installations where the design already uses EtherNet/IP, Modbus TCP, DF1, or Modbus RTU. The supplied sources do not establish regulatory billing accuracy, interval data, or demand-response outputs, so those functions should be validated separately.
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推荐产品汇总
工程参考数据： 1408-EM3A-ENT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 1408-EM3A-ENT | 1408-EM3A | 1408-EM3A-ENT |
|---|---|---|---|---|
| Brand | Allen-Bradley | Allen-Bradley | Allen-Bradley | Allen-Bradley |
关键差异点
- Combines Ethernet and serial industrial communications （对比 1408-EM3A)
- EM3 demand-monitoring functionality （对比 Generic standalone power meter)
- Networked energy and power-parameter reporting （对比 Local-display-only energy meter)
设计说明
Confirm the panel supply is 120/240V AC before connection and verify the monitor’s complete input-current, frequency, and power-consumption requirements in the manufacturer documentation. The 5 A figure supplied by distributor data describes ammeterage rating, not necessarily the monitor’s power-supply consumption, so it must not be used for conductor sizing. Apply the manufacturer’s overcurrent and disconnect requirements and avoid adding assumptions about terminal numbering.
Choose the communication path during design rather than after installation. Use EtherNet/IP or Modbus TCP over the 10Base-T Ethernet port when the plant network supports those protocols, and use RS-485 with DF1 or Modbus RTU when the existing architecture is serial. Confirm baud rate, addressing, cable type, termination, and register or data-object mappings in the PowerMonitor 1000 communication documentation before commissioning.
Treat the product as an industrial panel instrument rather than a semiconductor PCB component. Follow the manufacturer’s panel-mounting and terminal-wiring instructions, provide the required clearances, and verify that the enclosure and terminal block are rated for the installation environment. Because the supplied data does not include dimensions, terminal assignments, or environmental limits, those items should be taken from the official installation documentation rather than inferred from the product family name.
Do not substitute a generic Ethernet energy meter solely because it has an Ethernet port. The 1408-EM3A-ENT is specified with 120/240V AC power, 5 A ammeterage, RS-485, EtherNet/IP, Modbus TCP, DF1, and Modbus RTU, plus EM3 demand functions. A replacement must be checked for matching voltage, current inputs, protocol data maps, terminal arrangement, and controller compatibility before it can be considered a drop-in replacement.
合规信息
The RS product result references a RoHS certificate of compliance. The supplied data does not establish REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status.