Allen Bradley 1756-PA75 | ControlLogix AC Power Supply Module

Product Description

The Allen Bradley 1756-PA75 is a ControlLogix AC power supply module engineered to deliver stable and efficient power to ControlLogix chassis systems. Designed for compatibility with multiple chassis sizes, it provides reliable voltage regulation and high current capacity for demanding automation environments. With robust isolation, wide input voltage range, and extended hold-up times, the module ensures dependable operation across diverse industrial applications.

Technical Specifications

• Manufacturer Allen Bradley

• Product Line ControlLogix 1756 Series

• Product Type AC Power Supply Module

• Part Number 1756-PA75

• Weight 2.13 lbs (0.96 kg)

• Nominal Input Voltage 120/240 V AC

• Input Voltage Range 85–265 V AC

• Input Frequency 47–63 Hz

• Input Power 100 W

• Power Output 75 W @ 60 °C

• Current Capacity

• 4 A @ 3.3 V DC

• 13 A @ 5.1 V DC

• 2.8 A @ 24 V DC

• Isolation Voltage 250 V continuous

• Max Inrush Current 30 A

• Hold-Up Time

• 2 cycles @ 85 V AC, 60 Hz

• 6 cycles @ 120 V AC, 60 Hz

• 20 cycles @ 220 V AC, 60 Hz

• Location Left side of 1756 chassis

• Chassis Compatibility

• 1756-A4/A, A7/A, A10/A, A13/A, A17/A

• 1756-A4/B, A7/B, A10/B, A13/B, A17/B

• 1756-A4/C, A7/C, A10/C, A13/C, A17/C

• Operating Temperature 0–60 °C (32–140 °F)

• Enclosure Type Open-style

Application Scenarios

• Powering ControlLogix controllers and I/O modules in large automation systems

• Industrial environments requiring stable AC-to-DC conversion

• Distributed control systems with multiple chassis configurations

FAQ

Q: What is the maximum output power of the 1756-PA75?  A: 75 W at 60 °C.

Q: Which chassis models are supported?  A: Compatible with 1756-A4, A7, A10, A13, and A17 series (A, B, and C revisions).

Q: Where should the module be installed?  A: On the left side of the ControlLogix chassis.

Comparable Models

• 1756-PA75: Standard AC power supply (this model)

• 1756-PA72: Lower-capacity AC power supply

• 1756-PB75: DC power supply variant