Description
The Allen Bradley 1404-M805A-ENT Master Module is a high-performance power monitoring module from the PowerMonitor 3000 M8 series. It is designed for electrical energy measurement, power quality monitoring, transient analysis, and industrial power management applications. The module supports 5 A current inputs, 120/240 VAC or 125/250 VDC control power, and EtherNet/IP communication for integration with industrial automation networks.
The 1404-M805A-ENT provides advanced metering functions including three-phase electrical measurement, harmonics analysis, event recording, transient capture, and revenue-grade energy monitoring. It is commonly used in manufacturing plants, power distribution systems, MCC applications, and industrial facilities requiring detailed electrical system monitoring.

1404-M805A-ENT
📋 Product Datasheet
| Parameter | Value |
|---|---|
| Brand | Allen Bradley |
| Model | 1404-M805A-ENT |
| Series | PowerMonitor 3000 M8 Series |
| Product Name | Power Monitoring Master Module |
| Module Type | Three-Phase Power Monitoring Device |
| Application | Energy Monitoring & Power Quality Analysis |
| Current Input | 5 A CT Input |
| Voltage Supply | 120–240 VAC 50/60 Hz or 125–250 VDC |
| Communication Interface | EtherNet/IP + Native RS-485 |
| Measurement Functions | Voltage, Current, Power, Energy, Frequency, Power Factor |
| Power Quality Functions | Harmonics, Sag/Swell Detection, Transient Analysis |
| Accuracy Class | Class 0.5 / Class 0.2 Option |
| Data Logging | Internal Event & Trend Logging |
| Mounting Type | Panel Mount |
| Dimensions | Approx. 114 × 264 × 152 mm |
| Weight | Approx. 2.15 lb (0.98 kg) |
| Country of Origin | USA |
| Condition / Status | Used – Verify Physical Unit |
⚙️ Product Features
🔹 Advanced Power Monitoring – Measures electrical parameters including voltage, current, kW, kVAR, kVA, frequency, energy consumption, and power factor.
🔹 PowerMonitor 3000 M8 Technology – The M8 series adds advanced functions such as transient capture, higher-order harmonic measurement, and enhanced data logging capabilities.
🔹 EtherNet/IP Communication – Provides direct integration with Allen Bradley PLC systems, SCADA platforms, and industrial automation networks.
🔹 Power Quality Analysis – Supports monitoring of electrical disturbances including harmonics, voltage variations, and transient events.
🔹 Revenue Energy Metering – Supports high-accuracy energy measurement applications for industrial power management.
🔹 Industrial Automation Integration – Compatible with Rockwell Automation control architectures for centralized energy monitoring.
🔹 Flexible Communication Options – PowerMonitor 3000 modules are available with communication options including Ethernet, DeviceNet, ControlNet, Remote I/O, and serial interfaces depending on model configuration.
❓ Common Questions & Answers
Q1: What is the Allen Bradley 1404-M805A-ENT?
A: It is a PowerMonitor 3000 M8 Master Module used for industrial power measurement, monitoring, and power quality analysis.
Q2: Is the 1404-M805A-ENT a PLC CPU?
A: No. It is a dedicated electrical power monitoring module designed to work with automation systems.
Q3: What communication protocol does this model support?
A: The 1404-M805A-ENT provides EtherNet/IP communication along with the built-in RS-485 interface.
Q4: What is the difference between M8 and M6 PowerMonitor modules?
A: The M8 version adds transient capture and analysis, higher harmonic measurement capability, and additional energy monitoring functions compared with earlier versions.
Q5: What type of electrical systems can it monitor?
A: It is designed for three-phase industrial electrical systems, including distribution panels, motor control centers, and facility power systems.
Q6: What should be checked before replacement?
A: Confirm the complete catalog number, voltage supply type, CT rating, communication configuration, firmware version, and existing PLC/SCADA integration settings.
Q7: Is the 1404-M805A-ENT discontinued?
A: The PowerMonitor 3000 product family has been discontinued by the manufacturer, but replacement and spare units are still used for existing installations.
⭐ Recommended Allen Bradley Models
- 1404-M405A-ENT – PowerMonitor 3000 M4 Ethernet Master Module
- 1404-M505A-ENT – PowerMonitor 3000 M5 Ethernet Master Module
- 1404-M605A-ENT – PowerMonitor 3000 M6 Ethernet Master Module
- 1404-M805A-000 – PowerMonitor 3000 M8 Master Module
- 1404-M805A-232 – PowerMonitor 3000 M8 RS-232 Master Module
- 1404-M805A-DNT – PowerMonitor 3000 M8 DeviceNet Module
- 1404-M805A-RIO – PowerMonitor 3000 M8 Remote I/O Module
- 1404-DM – PowerMonitor 3000 Display Module
- 1408-EM3A-ENT – Energy Monitoring Module
- 1426-M8E – Power Quality Monitoring Module
