Allen Bradley 1756-PSCA2 Redundant Power Supply Chassis Adapter

FAQ

Q1: What is the function of the 1756-PSCA2 module?
It combines power from one or two redundant power supplies into a single connection for the ControlLogix chassis backplane.

Q2: Where is the module installed?
It is mounted on the left side of the ControlLogix chassis.

Q3: Does this module contain active electronics?
No, it is a passive adapter designed to distribute power reliably.

Q4: What power supplies are compatible with this adapter?
It is commonly used with redundant power supplies such as 1756-PA75R and 1756-PB75R.

Q5: What are the current output capabilities?
It supports multiple voltage rails, including 1.5 A @ 1.2 V, 4 A @ 3.3 V, 15 A @ 5.1 V, and 2.8 A @ 24 V.

Q6: What are the environmental operating conditions?
The module operates between 0 °C and 60 °C with 5–95% non-condensing humidity.

Q7: What cable is required for installation?
A 1756-CPR2 cable is required, with a minimum bend radius of about 127 mm.

Q8: What are the physical dimensions and weight?
The module measures approximately 140 mm × 112 mm × 145 mm and weighs about 0.23 kg.

1756-PSCA2 Allen Bradley Redundant Power Supply Chassis Adapter

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