Allen-Bradley 1756-PA72
ControlLogix AC Power Supply 85 to 265V AC
Image is for illustrative purposes only. Please refer to product description.
Delivery options
Allen-Bradley 1756-PA72 ControlLogix AC power supply: 85 to 265V AC input, 10 A at 5.1V DC, 75 W, Series A, B and C chassis.
- Manufacturer
- Allen-Bradley
- Manufacturer part no.
- 1756-PA72
- Product family
- ControlLogix Chassis and Power Supplies (1756)
- Type
- Rack power supply
- Weight
- approx. 0.95 kg (2.10 lb)
- Category
- PLCs and I/O › Rack power supplies
- Lifecycle
- Active
- OEM successor
- Not stated
- Technical datasheet
- Data sheet
Technical specifications
- Manufacturer
- Allen-Bradley
- Manufacturer part no.
- 1756-PA72
- Type
- Rack power supply
- Application
- ControlLogix chassis power
- Used with
- 1756 ControlLogix chassis
- Input voltage range
- 85…265V AC
- Input voltage, nom
- 120V/240V AC
- Input frequency range
- 47…63 Hz
- Input power, max
- 100VA/100 W
- Output power, max
- 75 W @ 0…60 °C (32…140 °F)
- Inrush current, max
- 20 A
- Hold up time
- 5 cycles @ 85V AC, 50/60 Hz 6 cycles @ 120V AC, 50/60 Hz 6 cycles @ 200V AC, 50/60 Hz 6 cycles @ 240V AC, 50/60 Hz
- Current capacity @ 1.2V DC
- 1.5 A
- Current capacity @ 3.3V DC
- 4 A
- Current capacity @ 5.1V DC
- 10 A
- Current capacity @ 24V DC
- 2.8 A
- Isolation voltage
- 250V (continuous), Reinforced Insulation Type, Power Input to Backplane, Type tested at 3500V DC for 60 s
- Weight, approx
- 0.95 kg (2.10 lb)
- Dimensions (HxWxD), approx
- 14.0 x 11.2 x 14.5 cm (5.51 x 4.41 x 5.71 in.)
- Module location
- Left side of 1756 chassis
- Chassis compatibility
- Series A, Series B, Series C
- Wire size
- 2.5 mm2 (14 AWG) solid or stranded copper wire that is rated at 90 °C (194 °F), or greater, 1.2 mm (3/64 in.) insulation max
- Wire category
- 1 - on power ports
- Temperature, operating
- 0 °C < Ta < +60 °C (32 °F < Ta < 140 °F)
- Temperature, surrounding air, max
- 60 °C (140 °F)
- Temperature, nonoperating
- -40…+85 °C (-40…+185 °F)
- Relative humidity
- 5…95% noncondensing
- Vibration
- 2 g @ 10…500 Hz
- Shock, operating
- 30 g
- Shock, nonoperating
- 50 g
Show all 36 specificationsShow fewer
- Emissions
- IEC 61000-6-4
- ESD immunity
- 6 kV contact discharges 8 kV air discharges
- EFT/B immunity
- ±4 kV at 5 kHz on power ports
- Surge transient immunity
- ±1 kV line-line (DM) and ±2 kV line-earth (CM) on power ports
- Conducted RF immunity
- 10V rms with 1 kHz sine wave 80% AM from 150 kHz…80 MHz
- Voltage variation
- 30% dips for 1 period at 0° and 180° on AC supply ports 60% dips for 5 and 50 periods on AC supply ports ±10% fluctuations for 15 min on AC supply ports >95% interruptions for 250 periods on AC supply ports
Technical documents (1)
Key features
- Input range of 85…265V AC, 47…63 Hz
- Current capacity of 10 A at 5.1V DC
- Current capacity at 1.2V, 3.3V and 24V DC
- Mounts on left side of 1756 chassis
- Operating temperature range of 0 to 60 °C
About the Allen-Bradley 1756-PA72
The 1756-PA72 is a ControlLogix 85-265 VAC power supply rated 10 Amp @ 5V. Nominal input is 120V/240V AC at 47…63 Hz, and maximum output is 75 W at 0…60 °C. Current capacity is 1.5 A at 1.2V DC, 4 A at 3.3V DC, 10 A at 5.1V DC and 2.8 A at 24V DC.
What is the 1756-PA72 used for?
It powers a 1756 ControlLogix chassis from an AC supply, fitted on the left side of the chassis. It works with Series A, Series B and Series C chassis.
Lifecycle and successor
Active (Rockwell Automation lifecycle status, checked 24 October 2026).
Before you order
What to photograph or confirm so the right unit is quoted.
Read the catalog number 1756-PA72, the series letter and the firmware revision from the label. Send us a photo of the label and we confirm the match before we quote.
Other parts in the Allen-Bradley ControlLogix Chassis and Power Supplies family
Listed for reference. They differ from the 1756-PA72 in rating, supply, interface or function and are not interchangeable with it unless Allen-Bradley says so. Match the part number on your unit.
| Product | Type | Lifecycle | Qty Available | Price | Action |
|---|---|---|---|---|---|
| Allen-Bradley 1756-A10ControlLogix 10 Slot Chassis, Horizontal Panel Mount | Chassis | Active | On request | On request | View |
| Allen-Bradley 1756-A13ControlLogix 13 Slot Chassis | Chassis | Active | On request | On request | View |
| Allen-Bradley 1756-A4ControlLogix 4 Slot Chassis, Horizontal Mounting | Chassis | Active | On request | On request | View |
| Allen-Bradley 1756-A7ControlLogix 7 Slot Chassis for Panel Mounting | Chassis | Active | On request | On request | View |
| Allen-Bradley 1756-PA75ControlLogix AC Power Supply 85 to 265V AC | Rack power supply | Active | On request | On request | View |
| Allen-Bradley 1756-PA75RControlLogix AC Redundant Power Supply 85…265V AC | Rack power supply | Active | On request | On request | View |
| Allen-Bradley 1756-PB72ControlLogix 24V DC Power Supply Module | Rack power supply | Active | On request | On request | View |
| Allen-Bradley 1756-PB75ControlLogix 24V DC Power Supply | Rack power supply | Active | On request | On request | View |
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