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Product Overview

The Allen-Bradley 1771-P10 operates as a high-efficiency, slot-mounted power supply module engineered specifically for facilities utilizing heavy-duty DC infrastructure. This dual-slot module accepts a nominal 125V DC input source—a standard standard in utility substations, power generation plants, and heavy processing environments—and regulates it into clean, stabilized 5V DC backplane power. The module outputs a continuous 8 Amperes directly to the 1771 universal chassis rail to run high-performance PLC-5 processors, remote I/O scanners, and dense digital or analog automation cards. It supports parallel system wiring to enable live redundancy configurations that eliminate single points of power failure. We supply this component exclusively as a 100% brand new, original factory unit to ensure flawless electrical regulation and absolute physical slot compatibility.

Technical Specifications

The following engineering table presents the exact input limits, performance capacities, and operating parameters for the 1771-P10 power module:

Specification Details
Manufacturer Allen-Bradley / Rockwell Automation
Catalog Number 1771-P10 (Series A)
Product Line PLC-5 / 1771 Universal Chassis Platform
Condition 100% Brand New Original Factory Stock
Module Type Chassis Slot-Mounted Power Supply Unit
Nominal Input Voltage 125 Volts DC
Input Voltage Range 97 to 145 Volts DC
Input Signal Waveform DC or Rectified Sine Wave
Maximum Real Input Power 51 Watts
Backplane Output Current 8 Amperes (8.0 A) continuous at 5 Volts DC
Required Slot Width 2 Chassis Slots
Internal Protective Fuse 1.5 Amperes, 250 Volts, slow-blow safety fuse
Redundant Connection Cable 1771-CT interface connector assemblies
Parallel Hardware Support Links directly with existing 1771-P5 or 1771-P10 units
Operating Ambient Temperature 0 to 60 degrees C (32 to 140 degrees F)
Ambient Relative Humidity 5% to 95% Non-condensing
Net Hardware Weight 1.02 kg (2.25 lbs)

Engineering Advantages

  • Direct Substation Voltage Regulation: The module connects directly to native 125V DC plant batteries and industrial DC distribution networks. This eliminates intermediate, inefficient step-down inverters, reducing electronic heat dissipation inside the control enclosure and lowering total component counts.

  • Active Hot-Backup Parallel Redundancy: By using standard 1771-CT interconnection cabling, engineers can hook up the 1771-P10 in parallel with an additional -P10 or -P5 module. This configuration builds an active, load-sharing power architecture that keeps the PLC running smoothly if one primary DC circuit drops offline.

  • Dense Two-Slot Rigid Architecture: The 2-slot physical housing distributes its 1.02 kg physical weight securely over multiple heavy-duty chassis locking mechanisms. This wide physical profile dampens high-frequency mechanical vibrations that occur near large extraction fans and mining equipment.

  • Continuous Heavy-Load Thermal Mitigation: Internal heavy-duty copper heat sinks pull thermal energy away from power-switching transistors, venting it out through integrated chassis perforations. This ensures the unit delivers its full 8 Amp current capacity up to 60 degrees C without requiring auxiliary fan kits.

  • Transient Overcurrent Protection: An internal 1.5 Amp, 250V slow-blow fuse acts as a sacrificial barrier against extreme upstream DC bus surges. This safety measure keeps electrical faults localized, preventing sudden high-voltage spikes from burning out complex logic chips on adjacent I/O modules.

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