{"product_id":"redundant-power-chassis-adapter-1756-psca2-allen-bradley","title":"Redundant Power Chassis Adapter | 1756-PSCA2 | Allen Bradley","description":"\u003ch3\u003e\u003cstrong\u003eAllen Bradley 1756-PSCA2 ControlLogix Redundant Power Supply Chassis Adapter\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-PSCA2 (1756-PSCA2)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a specialized chassis adapter designed for high-availability Allen-Bradley ControlLogix systems. It serves as the physical and electrical interface required to implement a redundant power architecture. This module occupies the standard power supply slot on the far-left side of a ControlLogix chassis and provides two connection ports for redundant power cables.\u003c\/p\u003e\n\u003cp\u003eUnlike standard power supplies that convert AC\/DC power internally, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-PSCA2 (1756-PSCA2)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eacts as a passive bridge. It aggregates power from two external redundant supplies (such as the 1756-PA75R or 1756-PB75R) and distributes it to the chassis backplane. This configuration ensures that if one power source or cable fails, the system continues to operate without interruption, making it a critical component for zero-downtime manufacturing and process control applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDetailed Technical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-PSCA2\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eadapter facilitates power redundancy with the following industrial parameters:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e: Allen-Bradley (Rockwell Automation)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel\/Part Number\u003c\/strong\u003e:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-PSCA2\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e: Redundant Power Supply Chassis Adapter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eChassis Location\u003c\/strong\u003e: Left-side power supply slot (any 1756 chassis)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e: 1756-PA75R (AC), 1756-PB75R (DC), 1756-PAR2, 1756-PBR2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBackplane Current (24V DC)\u003c\/strong\u003e: 125 mA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Dissipation (Max)\u003c\/strong\u003e: 25.7 Watts @ 30 °C; 21.3 Watts @ 60 °C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: 0 °C to +60 °C (32 °F to 140 °F)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e: -40 °C to +85 °C (-40 °F to 185 °F)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e: 5% to 95% non-condensing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e: Standard ControlLogix Power Supply width\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.26 kg (0.56 lbs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnclosure Type\u003c\/strong\u003e: None (Open-style)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":44001043873891,"sku":"1756-PSCA2","price":260.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/291._8eb86729-884a-47fe-a62a-7ff7ee72a11d.jpg?v=1770968773","url":"https:\/\/www.autocontrolglobal.com\/products\/redundant-power-chassis-adapter-1756-psca2-allen-bradley","provider":"AutoControl Global","version":"1.0","type":"link"}