1756-PA75 ControlLogix AC Power Supply 75W 13A | Allen-Bradley

The Original New Allen-Bradley 1756-PA75 is a standard AC power supply module for the ControlLogix platform, engineered to provide reliable, regulated DC power to the chassis backplane and all installed modules. Mounting directly on the left end of the chassis, it plugs into the backplane to distribute 1.2V, 3.3V, 5.1V, and 24V DC power for the entire ControlLogix system. With a wide 85–265V AC input range and 75W total output capacity, the 1756-PA75 delivers 13A at 5.1V DC—significantly higher than the standard 1756-PA72 (10A at 5.1V). Selecting the PA75 provides expanded backplane amperage to prevent unexpected voltage sags when a rack is packed with analog or motion modules.

Core Engineering Highlights:
75W output power | 13A @ 5.1V DC output current | 85–265V AC wide input range | 120/240V AC nominal | 47–63 Hz frequency | 75W @ 60°C max power dissipation | 20A max inrush current | 6 cycles hold-up time @ 120V AC | Series B and C chassis compatible | 0–60°C operating temperature

Key Features:

• Original New Allen-Bradley 1756-PA75 module

• 120V/240V AC nominal input with 85–265V AC wide operating range

• 47–63 Hz input frequency

• 75W maximum output power

• Multi-voltage DC outputs: 13A @ 5.1V, 4A @ 3.3V, 2.8A @ 24V, 1.5A @ 1.2V

• Hold-up time: 6 cycles at 120V AC, 60Hz

• Max inrush current: 30A

• Mounts directly on the left side of the 1756 ControlLogix chassis

• Compatible with Series B and C ControlLogix chassis

• Status LEDs for power and diagnostic indication

• Open-style enclosure with chassis mounting

• 0°C to 60°C operating temperature range

Applications:

• Rack power supply for ControlLogix 1756 chassis systems

• Powering ControlLogix controllers, I/O modules, and communication modules

• High-density racks with analog or motion modules requiring expanded 5V and 24V DC backplane amperage

• Industrial automation control panels and machine control systems

• Standard AC-powered ControlLogix installations

Technical Specifications:

General

• Catalog Number: 1756-PA75

• Product Type: ControlLogix Standard AC Power Supply

• Series: Series B

• Mounting: Left side of 1756 ControlLogix chassis

Input

• Nominal Input Voltage: 120/240V AC

• Input Voltage Range: 85–265V AC

• Input Frequency: 47–63 Hz

• Input Power: 100W (100VA) typical

• Inrush Current, Max: 30A

Output

• Output Power, Max: 75W @ 0–60°C

• Hold-up Time: 6 cycles @ 120V AC, 60Hz

• Current Capacity:

  • @ 1.2V DC: 1.5A

  • @ 3.3V DC: 4A

  • @ 5.1V DC: 13A

  • @ 24V DC: 2.8A

Isolation & Protection

• Isolation Voltage: 250V continuous, Reinforced Insulation Type

• Isolation Test Voltage: Type tested at 3500V DC for 60s, Power Input to Backplane

• Conductor Screw Torque: 0.565 N·m (5 lb·in)

Physical

• Enclosure Type: Open-style

• Dimensions (H x W x D): 140 x 112 x 145 mm (5.51 x 4.41 x 5.71 in.)

• Weight: Approx. 0.95 kg (2.10 lb)

Environmental

• Operating Temperature: 0°C to 60°C

• Storage Temperature: –40°C to 85°C

• Relative Humidity: 5–95% non-condensing

• Vibration: 2G @ 10–500 Hz

• Shock: 30G operating

• Wire Size: 2.5 mm² (14 AWG) solid or stranded copper wire, rated 75°C or greater

System Compatibility:

• Rockwell Automation ControlLogix 1756 chassis: 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17

• Series B and Series C chassis

• ControlLogix 1756 controllers

• GuardLogix safety controllers

• 1756 I/O modules, communication modules, and specialty modules

• Standard ControlLogix systems (non-redundant)

Certifications:
CE, CSA, cULus, KC, MARINE, RCM, UL
UL Listed (File E10314), CSA Certified (File LR62262)

Related Products:

• 1756-PA75K – Conformally coated version for harsh environments

• 1756-PA75R – Redundant power supply version

• 1756-PB75 – 24V DC input version (same output capacity)

• 1756-PC75 – 48V DC input version

• 1756-PH75 – 125V DC input version

• 1756-PA50 – Slim AC power supply (lower capacity)

• 1756-PA72 – Standard AC power supply (10A @ 5.1V)

• 1756-PAR2 – Redundant power supply kit for critical applications

• 1756-A4 / 1756-A7 / 1756-A10 / 1756-A13 / 1756-A17 – ControlLogix chassis options

• 1756-PA30XT – ControlLogix-XT slim AC power supply for harsh environments

PLC ERA is an independent industrial automation distributor supplying 100% genuine Original New products through established global supply channels. Allen-Bradley and ControlLogix are trademarks of Rockwell Automation.