{"product_id":"allen-bradley-1756-psca2-a-controllogix-redundant-power-supply-chassis-adapter-module","title":"Allen-Bradley 1756-PSCA2\/A ControlLogix Redundant Power Supply Chassis Adapter Module","description":"\u003ch2\u003eAllen-Bradley 1756-PSCA2\/A ControlLogix Redundant Power Supply Chassis Adapter Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for redundant power integration in ControlLogix chassis platforms, the \u003cstrong\u003eAllen-Bradley 1756-PSCA2\/A\u003c\/strong\u003e (\u003cstrong\u003e1756-PSCA2\u003c\/strong\u003e 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.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1756-PSCA2\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.53 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e140 x 112 x 145 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePower dissipation: 25.7 W at 30 deg C, 21.3 W at 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eRedundant Power Supply Chassis Adapter Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003eControlLogix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Source\u003c\/td\u003e\n\u003ctd\u003eRedundant power supplies 1756-PA75R and 1756-PB75R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e125 mA at 24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Capacity\u003c\/td\u003e\n\u003ctd\u003e1.5 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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Position\u003c\/td\u003e\n\u003ctd\u003eLeft side of ControlLogix chassis, horizontal mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Interface\u003c\/td\u003e\n\u003ctd\u003e1756-CPR2 cable, minimum 5 inch bend radius\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eOpen-style enclosure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Rating\u003c\/td\u003e\n\u003ctd\u003e5% to 95% relative humidity, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Rating\u003c\/td\u003e\n\u003ctd\u003e2 G at 10 to 500 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Rating\u003c\/td\u003e\n\u003ctd\u003e30 G operating, 50 G non-operating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE, CSA, UL, ATEX, IECEx, KC, RCM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eControlLogix Backplane Power Integration\u003c\/h3\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What power supplies are compatible with the 1756-PSCA2\/A module?\u003cbr\u003eA: The module interfaces with ControlLogix redundant power supplies including 1756-PA75R and 1756-PB75R models.\u003c\/p\u003e\n\u003cp\u003eQ: Does the 1756-PSCA2\/A generate power for the chassis?\u003cbr\u003eA: No. The module functions as a chassis adapter and power distribution interface. Power generation is provided by the connected redundant power supply modules.\u003c\/p\u003e\n\u003cp\u003eQ: What are the installation requirements for the power connection cable?\u003cbr\u003eA: The module uses 1756-CPR2 cable connections. Cable routing must maintain the specified minimum bend radius and avoid mechanical stress on connectors.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall 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.\u003c\/p\u003e\n\u003cp\u003eRoute 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.\u003c\/p\u003e\n\u003cp\u003eBefore 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.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43627648680026,"sku":"1756-PSCA2\/A","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-PSCA21.jpg?v=1783667670","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-psca2-a-controllogix-redundant-power-supply-chassis-adapter-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}