1756-PA72 ControlLogix AC Power Supply 75W | Allen-Bradley

The Original New Allen-Bradley 1756-PA72 is a standard AC power supply for the ControlLogix platform, designed 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, 5V, and 24V DC power for the entire ControlLogix system.

Core Engineering Highlights:
75W output power | 85-265V AC wide input range | 10A @ 5.1V DC | 2.8A @ 24V DC | Standard AC power supply | Chassis mounting | 0-60°C operating temperature

Key Features:

• Original New Allen-Bradley 1756-PA72 module

• 120V/240V AC nominal input, 85-265V AC wide operating range

• 47-63 Hz input frequency

• 75W maximum output power @ 0-60°C (32-140°F)

• Multi-voltage DC outputs: 10A @ 5.1V, 4A @ 3.3V, 2.8A @ 24V, 1.5A @ 1.2V

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

• Compatible with Series A, B, and C ControlLogix chassis

• Status LED display for power and diagnostic indication

• Open-style enclosure with chassis mounting

• 0°C to 60°C operating temperature range

• 20A maximum inrush current

Applications:

• Rack power supply for ControlLogix 1756 chassis systems

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

• Industrial automation control panels and machine control systems

• Standard AC-powered ControlLogix installations

Technical Specifications:

• Catalog Number: 1756-PA72

• Product Type: ControlLogix Standard AC Power Supply

• Input Voltage Range: 85-265V AC

• Nominal Input Voltage: 120V/240V AC

• Input Frequency Range: 47-63 Hz

• Input Power, Max: 100 VA / 100 W

• Output Power, Max: 75 W @ 0-60°C

• Inrush Current, Max: 20 A

• Hold Up Time: 5 cycles @ 85V AC, 6 cycles @ 120V/200V/240V AC, 50/60 Hz

• Current Capacity:

  • @ 1.2V DC: 1.5 A

  • @ 3.3V DC: 4 A

  • @ 5.1V DC: 10 A

  • @ 24V DC: 2.8 A

• Isolation Voltage: 250V continuous, Reinforced Insulation Type, Power Input to Backplane; type tested at 3500V DC for 60s

• Chassis Compatibility: Series A, B, and C

• Mounting: Left side of 1756 ControlLogix chassis

• Dimensions (HxWxD): 140 x 112 x 145 mm (5.51 x 4.41 x 5.71 in.)

• Weight: Approx. 0.95 kg (2.10 lb)

• Wire Size: 2.5 mm² (14 AWG) solid or stranded copper wire, rated 90°C or greater

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

• Relative Humidity: 5-95% non-condensing

• Vibration: 2 g @ 10-500 Hz (operating)

• Shock: 30 g operating, 50 g non-operating

• Enclosure Type: Open-style

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

• Storage Temperature: –40°C to 85°C

• North American Temperature Code: T4

• Certifications: CE, cULus, KC, RCM, UL

• UPC: 612598172597

• Lifecycle Status: Active

System Compatibility:

• Rockwell Automation ControlLogix 1756 chassis (Series A, B, and C)

• ControlLogix 1756 controllers

• GuardLogix safety controllers

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

• Standard ControlLogix systems (non-redundant)

Related Products:

• 1756-PA72K – Conformally coated version for harsh environments

• 1756-PA75 – 75W standard AC power supply, Series B chassis

• 1756-PA50 – Slim AC power supply for Series A chassis

• 1756-PB72 – 24V DC input version of this power supply

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

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

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

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