The 1769-PA2 from Allen‑Bradley is a reliable AC power supply module built for the CompactLogix automation platform. This power supply converts 85-265VAC input into stable DC power for your I/O modules and controllers. It provides 2.0A at 5V DC and 0.8A at 24V DC to support a variety of connected devices. Moreover, this unit can supply power in both directions, allowing you to place I/O modules on either side of the power supply. With its compact dimensions and DIN-rail mounting capability, the 1769-PA2 fits easily into control cabinets with limited space. Additionally, it carries important certifications like c-UL-us and CE, making it suitable for global industrial installations.
The 1769-PA2 operates on a wide AC input voltage range of 85 to 265V AC, which covers standard 120V and 240V nominal systems. Its input frequency range spans from 47 to 63 Hz, accommodating both 50 Hz and 60 Hz mains supplies. At 120V AC, the power consumption is approximately 100VA, while at 240V AC, it rises to about 130VA. Furthermore, the module draws a maximum inrush current of 25A at 132V AC during startup. This robust input stage ensures stable operation even with fluctuating line voltages.
This power supply delivers 2.0A at 5V DC and 0.8A at 24V DC to the CompactLogix backplane. The 5V output powers the logic circuits of connected I/O modules, while the 24V output drives field-side devices and output channels. Importantly, the total power dissipation is rated at 8W at 60 °C, which helps you calculate the thermal load inside your enclosure. The unit also includes an internal fuse for overcurrent protection. You can replace it with a Littelfuse 02153.15MXP or a Wickmann 19195-3.15A fuse if needed.
The 1769-PA2 supports a power supply distance rating of 8. This means you can install up to eight (8) 1769-series I/O modules on each side of the power supply, totaling a maximum of 16 modules per power supply. This bidirectional power distribution gives you great flexibility when arranging modules in a CompactLogix system. For instance, you can place the controller on one side and analog modules on the other, optimizing panel layout and reducing wiring complexity.
Measuring approximately 118 mm x 70 mm x 87 mm (4.65 x 2.76 x 3.43 inches), the 1769-PA2 has a space-saving form factor. Including the mounting tabs, the height increases to 138 mm (5.43 inches). The module weighs only 525 g (1.16 lb) , making it lightweight and easy to handle during installation. Additionally, the shipping weight is about 2 pounds, which keeps freight costs low when ordering multiple units.
The 1769-PA2 is an open-style power supply with no built-in enclosure. Therefore, you must install it inside a protective control cabinet to shield it from dust, moisture, and corrosive atmospheres. It requires a minimum clearance of 50 mm (2 inches) from adjacent equipment to ensure proper ventilation. Moreover, the module should not be exposed to excessive heat, UV radiation, or static discharge during installation or operation. If the ambient temperature around the enclosure becomes too high, we recommend using air conditioners or fans to maintain a safe operating environment. The unit complies with industrial emission standards per AS/NZS CISPR 11 and the European EMC Directive 2004/108/EC.
When mounting the 1769-PA2, you can secure it onto a standard DIN rail or directly onto a mounting plate. Before installation, verify that the input voltage matches your facility's AC supply and that the circuit breaker is turned off. Use 14 AWG (2.5 mm²) solid copper wire rated at 90 °C or higher for the AC input connections. Keep the wire leads as short as possible to minimize voltage drops and electromagnetic interference. Additionally, you must connect the ground terminal to a reliable earth ground using the same wire gauge. After wiring, ensure that no debris or metallic fragments fall into the module during installation. Once mounted, arrange the I/O modules on both sides according to the distance rating, then apply power and check the status indicators for normal operation.
One (1) Allen-Bradley 1769-PA2 AC Power Supply module
One (1) removable terminal block for AC input connections
DIN-rail mounting clip (pre-attached)
Installation instructions leaflet
Note: Power cords, fuses, and additional mounting hardware are not included and must be ordered separately.
All orders ship via FedEx, UPS, or DHL with full tracking capabilities. Each unit is packaged in anti-static bubble wrap to prevent damage from electrostatic discharge or physical shock. Standard processing takes 1-2 business days. Express shipping options are available upon request for urgent deliveries.
1. How many I/O modules can the 1769-PA2 support?
The 1769-PA2 supports up to eight (8) I/O modules on each side, for a total of 16 modules. This counts both directions from the power supply.
2. What is the input voltage range for this power supply?
It accepts a wide range of 85 to 265V AC, making it compatible with 120V and 240V nominal systems worldwide.
3. Does the 1769-PA2 have a replaceable fuse?
Yes, it includes an internal fuse. You can replace it with a Littelfuse 02153.15MXP or Wickmann 19195-3.15A if it blows.
4. Can I mount this power supply on a DIN rail?
Absolutely. The 1769-PA2 includes a pre-attached DIN-rail clip for quick and secure mounting in standard industrial cabinets.
5. What certifications does the 1769-PA2 hold?
It is c-UL-us listed, CE marked, and C-Tick approved. It also complies with AS/NZS CISPR 11 for industrial emissions.
| Brand Name | |
| Model No. | 1769-PA2 |
| Product Type | I/O Power Supply |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
