{"product_id":"allen-bradley-1756-psca2-redundant-power-supply-chassis-adapter-module","title":"Allen-Bradley 1756-PSCA2 ControlLogix Redundant Power Supply Chassis Adapter","description":"\u003cp\u003eThe Allen-Bradley 1756-PSCA2 is a ControlLogix redundant power supply chassis adapter module engineered to enhance system uptime by enabling redundant power configurations. This passive interface module routes electrical power from one or two remotely mounted ControlLogix redundant power supplies directly into the backplane of a ControlLogix chassis.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePassive power distribution interface for high-reliability applications.\u003c\/li\u003e\n\u003cli\u003eEnables redundant power supply configurations using 1756-PA75R\/A or 1756-PB75R\/A power supplies.\u003c\/li\u003e\n\u003cli\u003eSupports automatic load sharing between dual power sources.\u003c\/li\u003e\n\u003cli\u003eFacilitates seamless failover protection; if one power supply fails, the remaining unit maintains the full chassis load.\u003c\/li\u003e\n\u003cli\u003eDesigned for left-side mounting on standard ControlLogix chassis.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis adapter is essential for critical industrial control processes where power supply failure cannot result in system downtime. Typical applications include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOil, gas, and petrochemical processing systems.\u003c\/li\u003e\n\u003cli\u003eWater and wastewater treatment facility control.\u003c\/li\u003e\n\u003cli\u003eFood and beverage production and mixing lines.\u003c\/li\u003e\n\u003cli\u003ePower generation and utility infrastructure management.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Model\u003c\/td\u003e\n\u003ctd\u003e1756-PSCA2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Location\u003c\/td\u003e\n\u003ctd\u003eLeft-side of ControlLogix chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Cables\u003c\/td\u003e\n\u003ctd\u003e1756-CPR2 (0.91m \/ 3ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 degC to 60 degC (32 degF to 140 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Capacity (1.2V DC)\u003c\/td\u003e\n\u003ctd\u003e1.5 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Capacity (3.3V DC)\u003c\/td\u003e\n\u003ctd\u003e4 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Capacity (5.1V DC)\u003c\/td\u003e\n\u003ctd\u003e15 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Capacity (24V DC)\u003c\/td\u003e\n\u003ctd\u003e2.8 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the ControlLogix chassis is properly grounded before installing the module.\u003c\/li\u003e\n\u003cli\u003eThe 1756-PSCA2 must be installed in the designated power supply slot on the far left side of the chassis.\u003c\/li\u003e\n\u003cli\u003eAlign the module circuit board with the chassis card guides and slide it in until it is flush with the front of the chassis.\u003c\/li\u003e\n\u003cli\u003eSecure the module by tightening the top and bottom retaining screws to ensure a solid electrical connection to the backplane.\u003c\/li\u003e\n\u003cli\u003eUse only compatible 1756-CPR2 cable assemblies for connecting the remote power supplies.\u003c\/li\u003e\n\u003cli\u003eAlways power down the system before inserting or removing modules to prevent electrical arcing or damage to backplane pins.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the primary purpose of the 1756-PSCA2?\u003c\/h3\u003e\u003cp\u003eIt acts as a bridge to allow two remotely mounted, redundant power supplies to provide power to a single ControlLogix chassis, ensuring continuous operation during a power supply failure.\u003c\/p\u003e\u003ch3\u003eCan I mix AC and DC power supplies with this adapter?\u003c\/h3\u003e\u003cp\u003eYes, the 1756-PSCA2 is designed to support both 1756-PA75R\/A (AC) and 1756-PB75R\/A (DC) power supplies in redundant configurations.\u003c\/p\u003e\u003ch3\u003eDoes the module require external power?\u003c\/h3\u003e\u003cp\u003eNo, the 1756-PSCA2 is a passive device. It receives power from the connected external power supplies and routes it to the chassis backplane.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51002298073340,"sku":"1756-PSCA2","price":79.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_c2f6b4a4-0817-4cbc-8a66-990fc1a1f809.jpg?v=1787339638","url":"https:\/\/www.electronicplc.com\/ar\/products\/allen-bradley-1756-psca2-redundant-power-supply-chassis-adapter-module","provider":"Electronic PLC","version":"1.0","type":"link"}