The Allen-Bradley 1756-PSCA2 is a crucial chassis adapter module designed to integrate one or two redundant power supplies into a single power connector on the ControlLogix chassis backplane—ideal for constructing reliable redundant power systems. With support for 1.5 A at 1.2V DC, 4 A at 3.3V DC, 15 A at 5.1V DC, and 2.8 A at 24V DC, it delivers essential power distribution capabilities. Compatible with Bulletin 1756-PA75R and 1756-PB75R, it features an open-type passive design for horizontal mounting and requires a 1756-CPR2 cable for connection, maintaining a minimum 5-inch bend radius. Certified for use in hazardous locations, it meets the standards of EN 60079-15 and IECEx UL, ensuring both safety and compliance. Proper grounding is essential to optimize performance and safety, with the potential need for an additional protective earth-ground terminal in certain applications.
Technical specifications for 1756-PSCA2
Manufacturer
Rockwell Automation
Brand
Allen-Bradley
Part Number/Catalog No.
1756-PSCA2
Series
ControlLogix
Module Type
Chassis Adapter Module for Redundant Power Supply
Weight
8.1 ounces (0.228 kilograms)
Dimensions
5.51 x 4.41 x 5.71 inches
Mounting
Chassis - Left
Operating Temperature
32-140 Fahrenheit (0-60 Celsius)
Backplane Current (24 Volts)
125 milliamps
Power Dissipation (Max)
25.7 Watts at 30 Celsius, 21.3 Watts at 60 Celsius
