1404-M405A-DNT Allen-Bradley PowerMonitor 3000 System Unit

Overview

The Allen-Bradley 1404-M405A-DNT is a PowerMonitor 3000 series power management device designed for multi-parameter electrical monitoring in low- to medium-voltage distribution systems. It integrates voltage, current, digital I/O, and relay outputs into a single platform for real-time energy data acquisition and system control.

Electrical Measurement Capabilities

• Voltage Input Range: 20–600 V AC (line-to-line nominal 480 V AC)

• Current Input Rating: 5 A AC nominal (CT-based measurement)

• Input Burden: < 0.5 VA per voltage and current channel

• Frequency Range: 50/60 Hz system support

• Designed for three-phase power monitoring applications with configurable wiring architectures

Control Power Requirements

• Supply Voltage: 120–240 V AC

• Power Consumption: Maximum 15 VA

• Stable operation across standard industrial auxiliary power ranges

Digital Inputs & Outputs

• Digital Inputs: 4 optically isolated channels

• Input voltage: 18–30 V DC

• Input current: ~6 mA at 24 V DC

• Relay Outputs: 4 Form C contacts

• Contact rating: 240 V AC, 2 A resistive load

• Suitable for alarm signaling, load control, and status indication logic

System Functionality

The 1404-M405A-DNT provides integrated monitoring of electrical parameters such as voltage, current, power usage, and system events. It is commonly deployed for:

• Energy usage tracking and load profiling

• Power quality monitoring at distribution panels

• Equipment protection via programmable relay logic

• Integration with facility monitoring systems

Physical & Mechanical Data

• Weight: 3.13 lbs

• Panel-mounted industrial housing designed for electrical cabinet integration

Engineering Notes

• Requires external current transformers for current measurement

• Designed for three-phase AC systems only

• Supports configurable I/O mapping for flexible control schemes

• Suitable for retrofit into legacy Allen-Bradley PowerMonitor 3000 installations

Applications

• Industrial energy monitoring systems

• Motor control centers (MCC)

• Building power distribution panels

• Utility submetering systems

• Equipment-level power diagnostics

FAQ

Q1: Does this unit measure power directly?
It calculates electrical parameters based on voltage and CT inputs rather than direct power sensing.

Q2: Can it be used for single-phase systems?
Yes, but it is optimized for three-phase configurations.

Q3: Are current transformers required?
Yes, external 5 A CTs are required for current measurement inputs.