1769-PA2 | Allen-Bradley CompactLogix Power Supply Supplier

Why Choose the 1769-PA2 for Your CompactLogix System?

When your automation setup demands reliable I/O power distribution, the 1769-PA2 from Allen-Bradley provides a robust solution. This AC power supply module is designed for the CompactLogix platform, offering an input voltage range of 85–265V AC at 47–63 Hz. With a current capacity of 2.0A at 5V DC and 0.8A at 24V DC, it ensures stable operation for connected I/O modules. Engineers often face the challenge of powering multiple modules without overloading the system; the 1769-PA2 addresses this by supporting up to eight I/O modules on each side, for a maximum of 16 modules total, based on its power supply distance rating of 8.

Key Features & Technical Specs

• Input Voltage Range: 85–265V AC, 47–63 Hz – suitable for global applications.
• Current Capacity: 2.0A at 5V DC and 0.8A at 24V DC – ample for I/O banks.
• Power Consumption: 100VA at 120V AC; 130VA at 240V AC – efficient energy use.
• Power Dissipation: 8W at 60°C – low heat generation.
• Inrush Current: 25A max at 132V AC – prevents nuisance tripping.
• Fuse Type: Littelfuse 02153.15MXP or Wickmann 19195-3.15A – field-replaceable protection.
• Enclosure Type: None (Open Style) – requires proper mounting.
• Wire Size: Solid 22–14 AWG, Stranded 22–16 AWG, copper 90°C rated.
• Dimensions: 118 x 70 x 87 mm (4.65 x 2.76 x 3.43 in.) – compact footprint.
• Weight: 525 g (1.16 lb) – lightweight for easy handling.

Real-World Applications

In manufacturing lines where space is tight, the 1769-PA2 fits seamlessly into CompactLogix assemblies. For example, in a packaging machine that requires 12 I/O points, this power supply can drive both left and right expansion banks without exceeding its distance rating. Additionally, its wide input voltage range makes it ideal for facilities with fluctuating mains power. By using the 1769-PA2, engineers reduce the risk of brownouts affecting critical sensors and actuators.

Installation & Setup

Mount the 1769-PA2 on a DIN rail or directly to a panel using the integrated tabs. Leave at least 50 mm of clearance around the module for ventilation. Use 14 AWG copper wire rated at 90°C for the input connection, keeping leads as short as possible to minimize voltage drop. Ground the module per local codes to ensure safety. The power supply is open-style, so install it inside an enclosure to protect against contaminants and corrosive atmospheres. For high ambient temperatures, consider forced air cooling.

Maintenance & Reliability

Periodically inspect the 1769-PA2 for dust buildup and ensure ventilation paths remain clear. The internal fuse (Littelfuse 02153.15MXP or Wickmann 19195-3.15A) protects against short circuits and line transients; replace only with the specified type. Because the module dissipates only 8W at 60°C, it runs cool, extending service life. Regular checks of input voltage and output currents help catch issues early. Follow the manufacturer’s safety manual for all maintenance procedures.

Compatibility & Integration

The 1769-PA2 is designed for the Allen-Bradley CompactLogix platform. It works with 1769-series I/O modules, including digital, analog, and specialty modules. Up to eight modules can be connected on each side of the power supply, for a total of 16 modules. The power supply distance rating of 8 ensures adequate power delivery across the bank. For system expansion, simply add another 1769-PA2 to a new bank. No special configuration software is required; the module provides power automatically upon connection.

Common Questions About the 1769-PA2

Q: What is the input voltage range of the 1769-PA2?

A: The input voltage range is 85–265V AC at 47–63 Hz.

Q: How many I/O modules can I connect to one 1769-PA2?

A: You can connect up to eight modules on each side, for a maximum of 16 modules total, based on the power supply distance rating of 8.

Q: What fuse does the 1769-PA2 use?

A: It uses a Littelfuse 02153.15MXP or Wickmann 19195-3.15A fuse.

Q: What wire size is recommended for the input?

A: Use solid copper wire from 22 to 14 AWG, or stranded from 22 to 16 AWG, rated at 90°C.

Q: Is the 1769-PA2 certified for hazardous locations?

A: Yes, it is c-UL-us listed for Class 1, Division 2 Groups A,B,C,D, and also carries CE and C-Tick marks.

Product Support & Availability

The 1769-PA2 is in stock and ready to ship from Petro Auto Tech. As a trusted supplier of industrial automation parts, we ensure fast delivery and competitive pricing. Contact our team for bulk orders or technical inquiries.