Allen-Bradley 1756-PSCA2/A ControlLogix Redundant Power Supply Chassis Adapter Module
$123.00
$320.00
Description
Allen-Bradley 1756-PSCA2/A ControlLogix Redundant Power Supply Chassis Adapter Module
Configured for redundant power integration in ControlLogix chassis platforms, the Allen-Bradley 1756-PSCA2/A (1756-PSCA2 Redundant Power Supply Chassis Adapter Module) provides direct electrical connection between paired power supplies and the chassis backplane. It manages power distribution paths from compatible redundant supplies including 1756-PA75R and 1756-PB75R units.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-PSCA2/A |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.53 lbs |
| Dimensions | 140 x 112 x 145 mm |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Power dissipation: 25.7 W at 30 deg C, 21.3 W at 60 deg C |
| Product Type | Redundant Power Supply Chassis Adapter Module |
| Product Family | ControlLogix |
| Input Source | Redundant power supplies 1756-PA75R and 1756-PB75R |
| Backplane Current | 125 mA at 24 V DC |
| Current Capacity | 1.5 A at 1.2 V DC, 4 A at 3.3 V DC, 15 A at 5.1 V DC, 2.8 A at 24 V DC |
| Installation Position | Left side of ControlLogix chassis, horizontal mounting |
| Wiring Interface | 1756-CPR2 cable, minimum 5 inch bend radius |
| Enclosure Type | Open-style enclosure |
| Environmental Rating | 5% to 95% relative humidity, non-condensing |
| Vibration Rating | 2 G at 10 to 500 Hz |
| Shock Rating | 30 G operating, 50 G non-operating |
| Certifications | CE, CSA, UL, ATEX, IECEx, KC, RCM |
ControlLogix Backplane Power Integration
The 1756-PSCA2/A provides the electrical interface for redundant ControlLogix power configurations. The module accepts connections from two compatible redundant power supplies and routes regulated power to the chassis backplane. The adapter supports multiple backplane voltage rails including 1.2 V DC, 3.3 V DC, 5.1 V DC, and 24 V DC distribution paths.
The Allen-Bradley ControlLogix platform uses chassis backplane communication and power distribution architecture. The redundant supply configuration allows controller and I/O modules to maintain operation during a single supply interruption when configured with compatible redundant power components.
Frequently Asked Questions
Q: What power supplies are compatible with the 1756-PSCA2/A module?
A: The module interfaces with ControlLogix redundant power supplies including 1756-PA75R and 1756-PB75R models.
Q: Does the 1756-PSCA2/A generate power for the chassis?
A: No. The module functions as a chassis adapter and power distribution interface. Power generation is provided by the connected redundant power supply modules.
Q: What are the installation requirements for the power connection cable?
A: The module uses 1756-CPR2 cable connections. Cable routing must maintain the specified minimum bend radius and avoid mechanical stress on connectors.
Field Installation Guidelines
Install the 1756-PSCA2/A directly on the left side of the ControlLogix chassis in the specified horizontal mounting position. Verify that compatible redundant power supplies are correctly installed before connecting power cables.
Route power cables separately from high-noise signal wiring where possible. Maintain cable bend radius requirements and secure cables to prevent connector loading. Confirm that grounding connections follow the chassis installation requirements and that shielding practices are applied according to the system wiring standard.
Before operation, inspect terminal blocks, cable connections, and chassis mounting points for correct mechanical engagement. Verify power supply status indicators and controller diagnostics after energizing the system.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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