{"product_id":"allen-bradley-1756-par2-controllogix-redundant-power-supply-kit","title":"Allen-Bradley 1756-PAR2 ControlLogix Redundant Power Supply Kit","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1756-PAR2 is a comprehensive redundant power supply kit engineered for the ControlLogix platform. This assembly bundles two 1756-PA75R power supplies, two 1756-CPR2 interconnect cables, and one 1756-PSCA2 chassis adapter module. Designed to deliver failsafe power redundancy, the 1756-PAR2 minimizes downtime risks in critical industrial applications.\u003c\/p\u003e\u003cp\u003eEach 1756-PA75R accepts a wide input range of 85-264VAC (nominal 120\/240VAC) and provides up to 75W of clean output power. The kit's modular design simplifies installation and ensures reliable operation across demanding environments.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eRedundant Power Supply bundle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eControlLogix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1756-PAR2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage (per 1756-PA75R)\u003c\/td\u003e\n\u003ctd\u003e85-264VAC, 47-63Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003e75W @ 0…60°C (32…140°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Capacity\u003c\/td\u003e\n\u003ctd\u003e1.5A @ 1.2VDC; 4A @ 3.3VDC; 13A @ 5.1VDC; 2.8A @ 24VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e250V continuous (reinforced insulation); tested at 3250V DC for 60s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Inrush Current\u003c\/td\u003e\n\u003ctd\u003e20 Amperes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHold-up Time\u003c\/td\u003e\n\u003ctd\u003e2 cycles @ 60Hz; 2 cycles @ 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnnunciator Power\u003c\/td\u003e\n\u003ctd\u003e240V AC 50\/60Hz, 240V DC, 50mA, resistive only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis Compatibility\u003c\/td\u003e\n\u003ctd\u003e1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedundant Architecture:\u003c\/strong\u003e Two 1756-PA75R supplies work in parallel, providing automatic failover if one unit fails.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless Integration:\u003c\/strong\u003e The 1756-PSCA2 chassis adapter consolidates power from both supplies to the backplane, simplifying wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpace-Saving Design:\u003c\/strong\u003e The kit includes all necessary cables (1756-CPR2) and adapters, reducing component sourcing effort.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Input Range:\u003c\/strong\u003e Accepts 85-264VAC, making it suitable for global installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Protection:\u003c\/strong\u003e Reinforced isolation and high inrush handling ensure stable operation in harsh industrial settings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eReal-World Applications\u003c\/h2\u003e\u003cp\u003eThe 1756-PAR2 is ideal for manufacturing plants, process control systems, and critical infrastructure where uninterrupted operation is non-negotiable. For example, in a continuous production line, a momentary power loss can halt production and incur significant costs. The 1756-PAR2 provides redundant power, ensuring that the control system remains operational even if one supply fails, thereby preventing costly downtime.\u003c\/p\u003e\u003cp\u003eIn oil and gas or power generation facilities, the rugged design and wide temperature range make it a dependable choice for remote or harsh environments.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eTo install the 1756-PAR2, first mount the two 1756-PA75R power supplies side-by-side at the left end of the chassis. Connect each supply to the backplane using the provided 1756-CPR2 cables. Then insert the 1756-PSCA2 chassis adapter, which will route power from both supplies to the backplane connector. Ensure the input power is within the specified range (85-264VAC) and that all connections are secure. No additional configuration is required for basic operation.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eRoutine inspection should focus on the power supply fans (if any) and ensuring the input connectors remain clean and tight. Check the annunciator output periodically to verify system health. The redundant design means you can replace a failed supply without shutting down the system, provided you follow proper hot-swap procedures. Operating within the specified temperature range (0-60°C) will extend the lifespan of the units.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe 1756-PAR2 is designed specifically for ControlLogix chassis that support 1756-A4, A7, A10, A13, and A17. It integrates seamlessly with any ControlLogix controller and I\/O modules. The kit works with standard 120\/240VAC mains power, making it a universal solution for redundant power needs across the ControlLogix family.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing, verify your chassis model and power requirements. The 1756-PAR2 is a complete kit, so no additional parts are required for basic redundant operation. For enhanced monitoring, consider adding an annunciator module (not included). PLC Source PRO offers genuine Allen-Bradley 1756-PAR2 kits with fast shipping and expert support.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44436128170083,"sku":"1756-PAR2","price":298.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1756-2WS_3d5a84a9-eeb1-468c-a274-78ba86b6df86.jpg?v=1785792527","url":"https:\/\/www.plcsourcepro.com\/he\/products\/allen-bradley-1756-par2-controllogix-redundant-power-supply-kit","provider":"PLC Source PRO","version":"1.0","type":"link"}