Allen-Bradley 1768-PA3 CompactLogix Power Supply Module

The Allen-Bradley 1768-PA3 is a reliable CompactLogix Power Supply Module designed to deliver consistent and efficient power to your automation system. It operates within a wide input voltage range of 85–265V AC or 108–132V DC, making it ideal for various industrial environments. The module efficiently supplies backplane current and energizes connected modules while maintaining strong protection against electrical faults.

High Performance and Power Efficiency

The 1768-PA3 features a maximum power input of 120 VA / 120 W and delivers a backplane current of 1.4 A at 24V DC, ensuring stable system operation. Its 75% efficiency rating and integrated 15A overcurrent protection provide both reliability and energy savings. Moreover, the unit manages heat effectively with a maximum power dissipation of 30W.

Durable and Safe Design

Allen-Bradley engineered the 1768-PA3 with durability and safety in mind. It includes non-replaceable internal fusing and supports external overcurrent protection (4–6A) for additional security. The unit withstands 30V continuous isolation voltage and handles inrush currents up to 80A, ensuring operational safety during system startups.

Technical Specifications

Specification	Description
Manufacturer	Allen-Bradley
Product Series	CompactLogix
Model Number	1768-PA3
Module Type	AC Power Supply
Input Voltage Range	85–265V AC or 108–132V DC
Input Frequency	47–63 Hz
Max Input Power	120 VA / 120 W
Efficiency	75% typical
Isolation Voltage	30V continuous
Nominal Inrush Current	25A @ 85–132V AC, 50A @ 195–265V AC
Max Inrush Current	50A @ 85–132V AC, 80A @ 195–265V AC
Backplane Current	1.4A at 24V DC
Max Power Dissipation	30W
Power Consumption	33.6W
Internal Protection	Non-replaceable fuse (soldered)
Recommended External Fuse	4–6A
Enclosure Type	Open-style
UPC	10612598307569

Origin, Dimensions, and Weight

Country of Origin: United States
Weight: 2.06 lbs (0.94 kg)
Dimensions: Compact modular design, suitable for standard panel mounting

Why Choose Allen-Bradley 1768-PA3

The 1768-PA3 stands out for its wide input range, high inrush tolerance, and integrated protection mechanisms. It seamlessly powers CompactLogix controllers and modules in demanding automation setups. Its combination of efficiency, robustness, and easy integration ensures dependable operation across a variety of industrial applications.