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Allen-Bradley
1769-PA2
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SKU: 2100000018345
$200.00
Contact us for pricing
2-Year Warranty
Free Diagnostics
5–30 Day Turnaround
Nationwide Service
Repair option: component-level repair is available for this model — free diagnostics, a 2-year warranty, and a 5–30 business day turnaround. Repair typically costs 40–70% of a new unit, saving you 30–60%. Request a repair quote.
1769-PA2 repair service is available for this Allen Bradley CompactLogix power supply module, and facilities managing aging control panels should also know that ALLEN BRADLEY 1769-PA2 repair is often a more cost-effective path than full replacement — with a 1769-PA2 refurbished unit from a qualified shop offering a faster return to production. The 1769-PA2 is a 110 VAC single-phase power supply designed to provide regulated DC bus power to CompactLogix 1769 series I/O and controller backplanes, supporting up to 2A of backplane current at 5VDC. Facilities handling 1769-PA2 troubleshooting in-house often find that subtle AC input voltage sags or backplane overloading are root causes that go undiagnosed without proper load analysis. For plants running lean maintenance teams, searching for 1769-PA2 repair near me is a common first step, but partnering with a specialist in industrial VFD repair and control power supply restoration ensures proper component-level diagnosis rather than simple swap-and-test approaches. This module is commonly deployed in food and beverage, water treatment, and light manufacturing environments where 110 VAC single-phase infrastructure is already in place and upgrading to three-phase power is cost-prohibitive. The 1769-PA2 slots directly into the CompactLogix local I/O bank and must be positioned as the leftmost module in the system, a physical constraint that makes substitution tricky without verified cross-reference data. Thermal cycling, capacitor degradation, and inrush-related stress on the internal rectifier stage are the most frequent causes of failure in field units, and these are all addressable through component-level repair by experienced technicians.
Technical Specifications
Part Number
1769-PA2
Manufacturer
ALLEN BRADLEY
Voltage
110 VAC 1 Phase
Package / Type
POWER SUPPLY COMPACTLOGIX
Compatibility
The 1769-PA2 is compatible with the full Allen Bradley 1769 CompactLogix I/O expansion series, including digital and analog modules such as the 1769-IQ16, 1769-OB16, and 1769-IF4, as well as CompactLogix controllers like the 1769-L32E and 1769-L35E that share the same backplane bus architecture. ALLEN BRADLEY 1769-PA2 integration is supported under Studio 5000 Logix Designer for system configuration and power budgeting, and the module communicates backplane status indirectly through the controller's diagnostic registers. The 1769-PA2 replacement for aging 1769-PA4 installations is a common scenario where facilities are downgrading from 220 VAC to 110 VAC input infrastructure, though engineers must recalculate backplane current budgets before substitution. This power supply is also 1769-PA2 compatible with end-cap termination modules (1769-ECR and 1769-ECL), and it operates within systems connected via EtherNet/IP networks where the CompactLogix controller serves as the network adapter for distributed I/O communication.
Service Options
Repair Service
Ship your faulty 1769-PA2 to our facility. Our certified technicians perform IGBT testing, capacitor inspection, gate driver diagnostics, and full load testing. Typical turnaround: 5–7 business days. 2-year warranty included.
Refurbished
In-stock ALLEN BRADLEY 1769-PA2 variable frequency drive, reconditioned to OEM specifications and verified under load. Ships immediately. 2-year warranty included.
Brand New
New 1769-PA2 in original ALLEN BRADLEY packaging. Full manufacturer warranty applies. Contact us to confirm availability and lead time.
Common Failure Modes
Backplane undervoltage fault causing controller to log a 'Major Fault — I/O Power Loss' event, typically triggered by capacitor ESR increase in the 1769-PA2's primary filter stage after 5–8 years of continuous operation in high-ambient-temperature enclosures.
1769-PA2 fault presenting as intermittent 5VDC backplane rail dropout under full I/O load, often misdiagnosed as a controller firmware issue — root cause is typically a fatigued PWM controller IC on the secondary regulation stage.
Hard no-power condition with no LED illumination on the 1769-PA2 status indicator, caused by open-circuit failure of the inrush-limiting NTC thermistor after repeated power cycling in applications with undersized branch circuit protection.
1769-PA2 troubleshooting for nuisance resets in multi-module racks frequently traces back to inadequate AC input voltage — the module requires a stable 85–132 VAC input range, and sags below 85 VAC during motor starting events on shared branch circuits will cause immediate backplane power interruption.
Frequently Asked Questions
Is the 1769-PA2 compatible with other CompactLogix power supplies, and can it replace a 1769-PA4?
The 1769-PA2 replacement for a 1769-PA4 is mechanically feasible since both modules share the same form factor and slot into the CompactLogix 1769 backplane identically, but the key difference is input voltage — the PA4 accepts 220 VAC single-phase while the 1769-PA2 is rated for 110 VAC single-phase input. Both units deliver the same 2A at 5VDC backplane output, so the power budget for connected I/O modules remains unchanged during a swap. The 1769-PA2 is not directly interchangeable with the 1769-PB2 (24 VDC input variant), and engineers should also note it is not a drop-in replacement for power supplies in the MicroLogix 1100 or 1400 series, which use integrated power architectures. If your application involves a CompactLogix L2x or L3x series controller, confirming the 1769-PA2 compatible with your specific controller's backplane current draw using the Rockwell Automation Power Budget Calculator is recommended before installation.
How do I know if my 1769-PA2 is repairable or if I need a full replacement?
In most cases, 1769-PA2 repair is viable when the failure is limited to passive components — filter capacitors, thermistors, rectifier diodes, or PWM control ICs — which account for the majority of field failures in ALLEN BRADLEY 1769-PA2 units returned to repair depots. Units that have sustained physical damage from a sustained overvoltage event above 140 VAC, backplane short-circuit conditions, or moisture ingress with visible PCB corrosion are harder to restore economically and may warrant replacement instead. A qualified repair facility will perform free diagnostics to identify whether the primary switching transformer or output regulation circuitry has failed, as transformer rewinds are rarely cost-effective at this power supply's price point. If the module powers on but exhibits intermittent dropout, low output voltage under load, or abnormal heat generation at the output terminals, these are strong indicators that component-level 1769-PA2 repair will fully restore the unit to spec.
Where can I get 1769-PA2 repair service with a warranty?
Flexa Systems, based in Lewisville TX, provides component-level 1769-PA2 repair service with a 2-year warranty on all repaired and refurbished units, covering both parts and labor for any recurrence of the original fault. Standard turnaround is 5–7 business days from receipt, with rush options available for facilities facing unplanned downtime, and Flexa ships to and from anywhere in the continental United States as part of its nationwide service coverage. If you need to buy 1769-PA2 USA stock immediately while your unit is in repair, Flexa also maintains an inventory of tested 1769-PA2 for sale as exchange units, allowing you to get a working module on the floor the same week. Free diagnostics are included with every unit received, so even if you are unsure whether repair or replacement is the right path, you will receive a clear written assessment before any repair costs are committed.
Where can I get 1769-PA2 repair service with a warranty?
Flexa Systems provides professional 1769-PA2 repair service from our facility in Lewisville, TX, serving customers nationwide. Standard turnaround is 5–7 business days from receipt and all repaired units ship with a 2-year warranty. Rush service (2–3 business days) is also available.
Flexa Systems specializes in ALLEN BRADLEY 1769-PA2 variable frequency drive repair, supplying refurbished and new units backed by a 2-year warranty. All drives are load-tested before shipping. Serving industrial facilities nationwide from Lewisville, TX.
Technical Specifications
Part Number:
1769-PA2
Manufacturer:
ALLEN BRADLEY
Voltage:
110 VAC 1 Phase
Type:
POWER SUPPLY COMPACTLOGIX
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