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In Stock
Ships by Friday, August 7
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· Product image is representative; revision or series may vary. Contact us to request a specific version.
We provide 1 year warranty for all remaining parts.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online.
If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.
Amikon offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
Technical specifications for 1756-PSCA2
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Product Model1756-PSCA2
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Spare Model1756PSCA2
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Product ParametersControlLogix Redundant P S Adaptor
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Tariff Code8537101190
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Country of originUSA
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Place of shipmentXiamen, China
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In stock1 unit
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Estimated Shipping Size18x9x20.7cm
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ManufacturerAllen-Bradley
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Weight0.4 kg
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LocationControlLogix chassis
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Cable Assembly1756-CPR2 (Length = 0.91m [3ft])
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Temperature, operating0 °C ≤ Ta ≤ +60 °C(32 °F ≤ Ta ≤ +140 °F)
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Temperature, surrounding air, max60 °C (140 °F)
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Current Capacity at 1.2V DC1.5 Amps
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Current Capacity at 3.3V DC4 Amps
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Current Capacity at 5.1V DC15 Amps
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Current Capacity at 24V DC2.8 Amps
Description
The 1756-PSCA2 is a ControlLogix redundant power supply chassis adapter module designed to provide additional uptime protection for chassis used in critical applications. The 1756-PSCA2 serves as a passive device that funnels power from one or two ControlLogix redundant power supplies to the single power connector on the ControlLogix chassis backplane, specifically for Series B chassis configurations.
The 1756-PSCA2 is engineered to work with 1756-PA75R/A AC redundant power supplies and 1756-PB75R/A DC redundant power supplies. The 1756-PSCA2 allows these AC and DC versions to be mixed or matched when used in redundant configurations, providing flexibility for different power system architectures. The two remotely-mounted supplies connected through the 1756-PSCA2 are designed to share the current required by the chassis, ensuring balanced power delivery to all installed modules.
For system reliability, the 1756-PSCA2 enables seamless failover protection. In the event of a failure by one power supply, the remaining supply will accommodate the entire load of the chassis without disruption to chassis activity. This capability of the 1756-PSCA2 ensures that critical control processes remain operational even during power supply failures, making it essential for applications where downtime is not acceptable.
The 1756-PSCA2 is engineered to work with 1756-PA75R/A AC redundant power supplies and 1756-PB75R/A DC redundant power supplies. The 1756-PSCA2 allows these AC and DC versions to be mixed or matched when used in redundant configurations, providing flexibility for different power system architectures. The two remotely-mounted supplies connected through the 1756-PSCA2 are designed to share the current required by the chassis, ensuring balanced power delivery to all installed modules.
For system reliability, the 1756-PSCA2 enables seamless failover protection. In the event of a failure by one power supply, the remaining supply will accommodate the entire load of the chassis without disruption to chassis activity. This capability of the 1756-PSCA2 ensures that critical control processes remain operational even during power supply failures, making it essential for applications where downtime is not acceptable.
Revisions
Revision Part #
Also known as
Information
Overview
Manuals
Application Notes
Product Applications
Module Insertion
Features:
- Passive Power Funneling Device
- Redundant Power Supply Compatibility
- Automatic Load Sharing
- Left-Side Chassis Mounting
- Seamless Failover Protection
The module itself is passive, meaning it does not perform logic processing or communication functions. Instead, it ensures stable and structured distribution of power rails required by ControlLogix controllers, I/O modules, and communication modules installed in the chassis.
In redundant configurations, the 1756-PSCA2 enables the system to accept input from dual power supplies, improving system availability in industrial control applications. The adapter connects to the power supplies via the 1756-CPR2 cable assembly, and then feeds regulated power into the backplane for all installed modules.
The 1756-PSCA2 Allen-Bradley ControlLogix Chassis adapter module may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
Allen-Bradley 1756-PSCA2 ControlLogix Chassis adapter module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
The adapter module features comprehensive protection including overload, short circuit, overvoltage, and undervoltage protection. A Power OK LED indicator provides visual status of the power supply. Fault reporting is supported through the backplane for integration with controller diagnostics.
The 1756-PSCA2 measures 175 × 61 × 145 mm and weighs 0.45 kg. It supports panel mount or rack mount installation. The module operates from 0°C to +60°C and stores safely from -40°C to +85°C at 5% to 95% relative humidity non-condensing. It withstands 2 g vibration at 10–500 Hz and 30 g operating shock.
The module is compatible with all 1756 ControlLogix I/O modules and controllers (1756-L6x, 1756-L7x, 1756-L8x series), configured via RSLogix 5000 or Studio 5000 Logix Designer. Certifications include UL, CE, ATEX, C-Tick, FM, and KC.
- Water/Wastewater: Regulates chemical dosing pump speeds and effluent valve positioning
- Oil/Gas/Petrochemical: Manages pressure loops and controls burner gas-feed systems precisely
- Food/Beverage: Adjusts cooking/mixing temperatures via steam control valves with PID logic
- Power Generation: Drives steam governor actuators and integrates cooling tower fan speed systems
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Prepare the Chassis: Ensure your ControlLogix chassis (Series B or C) is securely installed and properly grounded.
Align the Adapter: Position the 1756-PSCA2 circuit board with the card guides on the far left side of the chassis (the standard designated power supply slot).
Slide and Secure: Gently slide the adapter back until it sits flush with the front of the chassis.
Tighten Screws: Secure the module in place by tightening the top and bottom retaining screws.
Alternative Names
1756PSCA2
I756-PSCA2
I756PSCA2
Technical notes
The 1756-PSCA2 features multiple physical characteristics including female cable connectors for connecting redundant power supply cables and a diagnostic status indicator for monitoring module health. The 1756-PSCA2 must be installed on the leftmost side of a ControlLogix chassis, with installation requiring alignment of the right side of the module with the left edge of the chassis and pushing until the locking tabs engage securely.
FAQs
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What is the main function of the 1756-PSCA2?
+It allows you to run two remotely mounted, redundant power supplies in tandem for a single ControlLogix chassis -
What happens if one of the power supplies fails?
+The 1756-PSCA2 instantly transfers the electrical load to the remaining power supply, ensuring continuous operation. -
Can one 1756-PSCA2 power multiple chassis?
+No, one adapter pair powers exactly one single ControlLogix chassis. -
What does the 1756-PSCA2 adapter actually do?
+It is a purely passive device that routes power from one or two ControlLogix redundant power supplies (like the 1756-PA75R or 1756-PB75R) into the single power connector on a ControlLogix chassis backplane.
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