<h2>Overview</h2>
<p>The Allen-Bradley 1400-PD52A is a discontinued power monitor display module designed for industrial energy monitoring and control integration. This module serves as an all-in-one interface for real-time acquisition and display of three-phase electrical parameters. Rated for 5 A operation at 277–480 V, the 1400-PD52A integrates directly into existing automation systems to provide visibility into electrical consumption, power quality, and demand.</p>
<h2>Key Features</h2>
<ul>
<li>Monitors three-phase line-to-neutral and line-to-line voltages</li>
<li>Measures current on all three voltage phases plus a fourth current input</li>
<li>Displays frequency, power factor, kVA, kW, kVAR, and demand parameters</li>
<li>Auxiliary voltage input (VAUX) and kVAH demand tracking</li>
<li>Plug-in communication card interface for remote I/O, RS-232C, and RS-485 connectivity</li>
<li>Integrates with plant control systems and energy management platforms</li>
</ul>
<h2>Technical Specifications</h2>
<ul>
<li><strong>Part Number</strong>: 1400-PD52A</li>
<li><strong>Manufacturer</strong>: Allen-Bradley (Rockwell Automation)</li>
<li><strong>Product Category</strong>: Power Monitor Display Module</li>
<li><strong>Current Rating</strong>: 5 Amp</li>
<li><strong>Voltage Range</strong>: 277–480 V (Three-Phase)</li>
<li><strong>Current Inputs</strong>: Four (three phase + one auxiliary)</li>
<li><strong>Voltage Inputs</strong>: Line-to-neutral, Line-to-line</li>
<li><strong>Measured Parameters</strong>: Voltage, Current, Frequency, Power Factor, kVA, kW, kVAR, Demand, kVAH</li>
<li><strong>Communication Ports</strong>: RS-232C, RS-485, Allen-Bradley Remote I/O</li>
<li><strong>Weight</strong>: 7.01 lbs</li>
<li><strong>Status</strong>: Discontinued by Manufacturer</li>
</ul>
<h2>Typical Applications</h2>
<ul>
<li><strong>Energy Management</strong>: Track real-time power consumption across facility circuits and loads</li>
<li><strong>Power Quality Monitoring</strong>: Monitor voltage balance, frequency stability, and power factor in three-phase systems</li>
<li><strong>Demand Control</strong>: Measure instantaneous and cumulative demand to support peak load management</li>
<li><strong>Control System Integration</strong>: Integrate electrical metrics into Allen-Bradley and third-party PLCs for automated response</li>
<li><strong>Troubleshooting and Maintenance</strong>: Diagnose power anomalies and validate system stability during commissioning or repair</li>
</ul>
<h2>Compatibility & Replacements</h2>
<h3>Compatible With</h3>
<ul>
<li>Allen-Bradley PowerMonitor 500, 1000, and 5000 series units</li>
<li>Rockwell Automation control systems and PLCs with I/O module interface</li>
<li>Industrial automation platforms supporting RS-232C and RS-485 communication</li>
<li>Third-party energy management software via serial port interface</li>
<li>Three-phase power systems rated 277–480 V AC</li>
</ul>
<h3>Replaces / Drop-In Replacement For</h3>
<p>The 1400-PD52A has been discontinued by the manufacturer. Verify compatibility with your system integrator before ordering, as modern PowerMonitor modules may have different electrical specifications and communication protocols. Exact drop-in replacements are not available; newer energy monitoring solutions should be evaluated for your application requirements.</p>
<h3>Works With</h3>
<ul>
<li>Allen-Bradley Remote I/O communication cards</li>
<li>RS-232C and RS-485 serial communication protocols</li>
<li>Rockwell Automation FactoryTalk EnergyMetrix software</li>
<li>Custom energy management and SCADA platforms with serial port support</li>
</ul>
