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ControlLogix AC Power Supply
SKU: 1756-PA72K
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Short Description
Description:
The 1756-PA72K provides regulated DC power to the ControlLogix backplane, allowing linked modules to work reliably.
It supports a wide variety of AC input voltages (85-265 V AC), making it suited for global deployments.
With a maximum output power of 75 W, it can handle high-demand configurations across several voltage rails.
The "K" suffix denotes conformal coating, which provides a protective covering to inside circuitry and is appropriate for settings with high humidity, airborne pollutants, or corrosive gasses.
It is mounted on the left side of the ControlLogix chassis and plugs directly into the backplane.
Accepts 85-265 V AC input (global compatibility).
Provides up to 75 W of regulated DC power to the backplane.
Supports four voltage rails: 1.2V, 3.3V, 5.1V, and 24V.
Developed for continuous operation in industrial automation systems.
Mounts to the left side of the ControlLogix chassis.
Buy currently uses Select Automation shop pricing and checkout.
Electrical Specifications:
Input Voltage Range: 85–265 V AC.
Nominal Input Voltage: 120/240 V AC.
Frequency Range: 47–63 Hz.
Max Input Power: 100 VA / 100 W.
Max Output Power: 75 W @ 0–60 °C (32–140 °F).
Inrush Current: 20 A max.
Hold-Up Time:
5 cycles @ 85 V AC.
6 cycles @ 120 V, 200 V, and 240 V AC.
Backplane Output Currents:
1.2 V DC: 1.5 A.
3.3 V DC: 4.0 A.
5.1 V DC: 10.0 A.
24 V DC: 2.8 A.
Environmental Ratings:
Operating Temperature: 0–60 °C.
Humidity: 5–95% non-condensing.
Isolation Voltage: 250 V continuous.
Dielectric Strength: Tested at 3500 V DC for 60 seconds.
Conformal Coating: Yes (K-suffix indicates coating for corrosion resistance).
Physical Characteristics:
Dimensions: 140 × 112 × 145 mm (5.51 × 4.41 × 5.71 in.).
Weight: 0.95 kg (2.10 lb).
Mounting Location: Left side of ControlLogix chassis.
Compatible Chassis: 1756-A4, A7, A10, A13, A17 (Series A, B, C).
Wiring & Installation:
Wire Size: 2.5 mm² (14 AWG) copper, rated at 90 °C.
Screw Torque: 0.8 N·m (7 lb·in).
Wire Category: Category 1 (power ports only).
Enclosure Type: Open style (requires protective enclosure in industrial settings).