{"product_id":"allen-bradley-1771-ps7c-plc-5-ac-power-supply-module","title":"Allen-Bradley 1771-PS7C PLC-5 AC Power Supply Module","description":"\u003ch2\u003eAllen-Bradley 1771-PS7C PLC-5 AC Power Supply Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for regulated chassis backplane power conversion in PLC-5 and 1771 I\/O chassis systems, the \u003cstrong\u003eAllen-Bradley 1771-PS7C\u003c\/strong\u003e (\u003cstrong\u003e1771-PS7\u003c\/strong\u003e AC Power Supply Module) provides direct electrical execution by converting AC input power into regulated 5 VDC for processor, I\/O, and communication modules.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe 1771-PS7C is identified as a 1771 series power supply module variant. The available model data identifies the complete catalog designation as 1771-PS7C. No additional manufacturer-defined suffix matrix information is provided in the available documentation.\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Element\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1771\u003c\/td\u003e\n\u003ctd\u003ePLC-5 \/ 1771 I\/O hardware platform\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePS7\u003c\/td\u003e\n\u003ctd\u003eAC power supply module family\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC\u003c\/td\u003e\n\u003ctd\u003eCatalog suffix designation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003e1771-PS7C\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\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e6.00 lbs\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\u003e56 W real input power; 16 W power dissipation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAC Power Supply Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e120 VAC nominal; 97-132 VAC range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdditional Input Rating\u003c\/td\u003e\n\u003ctd\u003e120\/220 VAC, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency\u003c\/td\u003e\n\u003ctd\u003e47-63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e1.0 A at 120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e5 VDC regulated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current\u003c\/td\u003e\n\u003ctd\u003eUp to 8 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e1000 VAC withstand for 60 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse\u003c\/td\u003e\n\u003ctd\u003e2 A, 250 V slow-blow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e5-95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock\u003c\/td\u003e\n\u003ctd\u003e30 g peak operating; 50 g peak non-operating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration\u003c\/td\u003e\n\u003ctd\u003e2 g at 10-500 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eOpen style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Connection\u003c\/td\u003e\n\u003ctd\u003e5-position terminal block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003ePLC-5 Backplane Power Distribution Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1771-PS7C provides regulated 5 VDC power through the 1771 backplane bus for connected PLC-5 processors, I\/O modules, and communication modules. The module occupies one chassis position and includes DC output and power status indicators for local verification.\u003c\/p\u003e\n\u003cp\u003eThe power architecture supports parallel connection through the 1771-CT cable for increased current capacity or redundant power arrangements. The supply monitors AC input conditions and provides a shutdown signal when input voltage decreases below the specified operating threshold.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the primary output function of the Allen-Bradley 1771-PS7C?\u003cbr\u003eA: The 1771-PS7C converts AC input power into regulated 5 VDC output for the 1771 chassis backplane.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 1771-PS7C be installed with other power supply modules?\u003cbr\u003eA: The module supports parallel operation using the specified 1771-CT cable arrangement when additional current capacity or redundant supply configuration is required.\u003c\/p\u003e\n\u003cp\u003eQ: What installation factor affects 1771-PS7C operating performance?\u003cbr\u003eA: Chassis loading, AC input wiring, ambient temperature, and cabinet ventilation must be considered during installation.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1771-PS7C in a compatible 1771 I\/O chassis slot and verify the total backplane power demand before system startup. Connect AC input wiring through the terminal block using industrial electrical installation practices.\u003c\/p\u003e\n\u003cp\u003eRoute AC power conductors separately from low-level signal and communication wiring to minimize electrical interference. Apply standard cabinet grounding methods for cable shields and protective earth connections.\u003c\/p\u003e\n\u003cp\u003eVerify correct fuse type and wiring polarity before energizing the module. For parallel supply configurations, use approved interconnection methods and confirm load sharing requirements. Maintain sufficient airflow around the open-style module installation area.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43700774731866,"sku":"1771-PS7C","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1771-PS7C2.jpg?v=1784700285","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1771-ps7c-plc-5-ac-power-supply-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}