Allen-Bradley 1756-PA75

Technical specifications

Manufacturer

Allen-Bradley

Manufacturer part no.

1756-PA75

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

2 cycles @ 85V AC, 60 Hz 6 cycles @ 120V AC, 60 Hz 20 cycles @ 220V AC, 60 Hz

Current capacity @ 1.2V DC

1.5 A

Current capacity @ 3.3V DC

4 A

Current capacity @ 5.1V DC

13 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 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

Technical documents (1)

• Rockwell Automation technical data 1756-TD005

Key features

• Accepts 85 to 265V AC input, 120V/240V nominal
• Delivers up to 75 W at 0 to 60 °C
• Provides 13 A at 5.1V DC and 2.8 A at 24V DC
• Mounts on left side of 1756 chassis, Series B or C
• Reinforced insulation, 250V continuous, power input to backplane

About the Allen-Bradley 1756-PA75

The 1756-PA75 is a ControlLogix 85-265 VAC power supply rated 13 A at 5V (technical data 1756-TD005). Nominal input is 120V/240V AC at 47 to 63 Hz, and maximum output is 75 W at 0 to 60 °C. Current capacity is 1.5 A at 1.2V DC, 4 A at 3.3V DC, 13 A at 5.1V DC and 2.8 A at 24V DC.

What is the 1756-PA75 used for?

It powers a 1756 ControlLogix chassis from an AC supply, fitted on the left side of the chassis, and gives more 5.1V current than the 10 A models for a well filled chassis. It works with 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-PA75, 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.