Upgrade Your CompactLogix System with the 1769-PA2 Power Supply
Is your CompactLogix I/O bank struggling with unstable power delivery? The Allen-Bradley 1769-PA2 solves that problem directly. This genuine CompactLogix I/O power supply delivers reliable, regulated power to your modules, keeping your automation system running without interruption. As a direct replacement for aging or failed power supplies, the 1769-PA2 restores full functionality to your existing CompactLogix assembly.
What Makes the 1769-PA2 a Smart Replacement Choice
When a power supply fails, every module on the I/O bank goes dark. Production stops. The 1769-PA2 eliminates that risk with a wide input voltage range of 85 to 265V AC and a frequency range of 47 to 63 Hz. That means it works across different power environments without configuration changes. You get 2.0A at 5V DC and 0.8A at 24V DC, enough capacity to feed a full bank of CompactLogix modules on both sides of the supply.
Key Technical Specifications at a Glance
| Specification | Value |
|---|---|
| Input Voltage Range | 85…265V AC |
| Input Frequency Range | 47…63 Hz |
| Current Capacity @ 5V DC | 2.0 A |
| Current Capacity @ 24V DC | 0.8 A |
| Power Consumption | 100VA @ 120V AC; 130VA @ 240V AC |
| Power Dissipation | 8 W @ 60 °C (140 °F) |
| Inrush Current, Max | 25 A @ 132V AC |
| Fuse Type | Littelfuse 02153.15MXP; Wickmann 19195-3.15A |
| Wire Size | 14 AWG (2.5 mm²) solid copper, 90 °C rated |
| Weight | 525 g (1.16 lb) |
| Dimensions (HxWxD) | 118 x 70 x 87 mm (4.65 x 2.76 x 3.43 in.) |
| Certifications | c-UL-us; CE; C-Tick |
The power supply distance rating of 8 means you can connect up to eight 1769 modules on either side of the power supply for a maximum of 16 modules total. That flexibility simplifies panel layout and reduces the number of power supplies you need to stock.
Where the 1769-PA2 Fits in Your Operation
CompactLogix I/O Expansion
You are adding a new I/O bank to an existing CompactLogix controller. The 1769-PA2 mounts directly on a DIN rail or mounting plate and powers the expansion modules. With 2.0A at 5V DC, it handles the backplane current draw of digital and analog modules without strain.
Replacement in Aging Panels
A power supply in a running panel fails after years of service. You need a drop-in replacement that matches the original footprint and wiring. The 1769-PA2 uses the same 14 AWG copper wire connections and mounts in the same 118 x 70 x 87 mm space. Swap it out and restore production fast.
Hazardous Location Installations
The 1769-PA2 is UL Listed for Class 1, Division 2 Group A, B, C, D hazardous locations, certified for U.S. and Canada. That makes it suitable for panels in environments where flammable gases or vapors may be present under abnormal conditions.
Installation Tips for a Smooth Startup
Mount the 1769-PA2 on a DIN rail or directly to a mounting plate. Leave adequate ventilation space around the module. The open-style enclosure requires protection from corrosive atmospheres and airborne contaminants, so install it inside a protective enclosure when possible. Ground the module properly using 14 AWG wire, and keep lead lengths as short as practical. The internal fuse protects against line transients and short circuits. If the fuse blows, replace it with a Littelfuse 02153.15MXP or Wickmann 19195-3.15A fuse.
Reliability and Maintenance That Protects Your Investment
Inspect the 1769-PA2 periodically for signs of overheating, loose wiring, or dust accumulation. The open-style design means dust and debris can settle on components over time. Keep the surrounding area clean and verify that ventilation paths remain clear. Check the input voltage regularly to confirm it stays within the 85 to 265V AC range. High ambient temperatures accelerate component aging, so monitor panel temperature and use air conditioning if needed. A failed power supply costs far more in downtime than the replacement unit itself. Keeping a spare 1769-PA2 on the shelf eliminates that risk entirely.
Compatibility and Integration
The 1769-PA2 belongs to the CompactLogix platform and works with 1769 Compact I/O modules. It powers modules on both sides of the supply, so you can build flexible I/O layouts. The supply accepts standard 14 AWG solid copper wire rated at 90 °C or higher with insulation up to 1.2 mm. It carries c-UL-us, CE, and C-Tick certifications, meeting requirements for U.S., Canadian, European, and Australian markets.
What to Verify Before You Buy
Confirm that your application uses a CompactLogix controller with 1769 I/O modules. Check that your available input voltage falls within the 85 to 265V AC range and that your frequency is between 47 and 63 Hz. Verify that your total module count does not exceed the power supply distance rating of 8 per side. If you need a fuse replacement, order the Littelfuse 02153.15MXP or Wickmann 19195-3.15A. SpareTechPLC stocks genuine Allen-Bradley components and can help you confirm compatibility before you order.
Please verify current lifecycle status and availability with SpareTechPLC before ordering.
