{"product_id":"1771-p4r-allen-bradley-power-supply-plc-5","title":"1771-P4R Allen-Bradley Power Supply PLC-5","description":"\u003cp\u003eConfigured for redundant power delivery to a PLC-5 I\/O chassis, the \u003cstrong\u003eAllen-Bradley 1771-P4R\u003c\/strong\u003e (\u003cstrong\u003e1771P4R\u003c\/strong\u003e Power Supply) provides backplane power from an AC input source. The supplied data identifies the unit as a one-slot, 8 A redundant power supply with a 5 VDC output.\u003c\/p\u003e\n\u003ch3\u003eModel Identification\u003c\/h3\u003e\n\u003cp\u003eThe supplied catalog information identifies 1771-P4R as a redundant PLC-5 power supply. The listed variants are 1771-P4R\/A, 1771-P4R\/B, and 1771-P4R\/C. No functional suffix differences are specified in the supplied data, so these revision designations are not assigned additional electrical characteristics.\u003c\/p\u003e\n\u003ch3\u003eElectrical and Mechanical Data\u003c\/h3\u003e\n\u003cfigure\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-P4R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpare Model\u003c\/td\u003e\n\u003ctd\u003e1771P4R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eListed Variants\u003c\/td\u003e\n\u003ctd\u003e1771-P4R\/A, 1771-P4R\/B, 1771-P4R\/C\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\u003eSeries\u003c\/td\u003e\n\u003ctd\u003ePLC-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eRedundant Power Supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Requirement\u003c\/td\u003e\n\u003ctd\u003e1 slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Current\u003c\/td\u003e\n\u003ctd\u003e8 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e8, arranged as 4 sets of 2 outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eListed AC Operating Voltage\u003c\/td\u003e\n\u003ctd\u003e0-24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e420 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eNot specified in supplied data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 deg C to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e5-95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy\u003c\/td\u003e\n\u003ctd\u003eRedundant power supply configuration\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\u003e0.9 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e27.9 x 2.5 x 17.8 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTariff Code\u003c\/td\u003e\n\u003ctd\u003e8537101190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Status\u003c\/td\u003e\n\u003ctd\u003eDiscontinued by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipment Origin\u003c\/td\u003e\n\u003ctd\u003eXiamen, China\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 Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1771-P4R is specified as a redundant power supply occupying one slot and providing 5 VDC for the associated PLC-5 chassis backplane. The supplied data lists a backplane current of 420 mA.\u003c\/p\u003e\n\u003cp\u003eThe input specification identifies 120 VAC at 50\/60 Hz, while a separate parameter lists 0-24 VAC as an AC operating voltage. Because the supplied data does not define the relationship between these two values, the 0-24 VAC entry should not be interpreted as the rated input range without confirmation from the applicable Allen-Bradley documentation.\u003c\/p\u003e\n\u003cp\u003eFor PLC-5 installations, backplane current loading must remain within the applicable chassis and power-supply limits. Redundant configurations should also be evaluated as a complete power architecture rather than treating the unit as an isolated AC-to-DC converter.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1771-P4R redundant power supply\u003c\/li\u003e\n\u003cli\u003e1 x PLC-5 compatible power supply module\u003c\/li\u003e\n\u003cli\u003eNo external redundancy accessory or mounting kit is identified in the supplied data\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation and Electrical Guidelines\u003c\/h3\u003e\n\u003ch4\u003eChassis Installation\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the module in a compatible PLC-5 chassis position.\u003c\/li\u003e\n\u003cli\u003eConfirm the chassis backplane connector is clean before installation.\u003c\/li\u003e\n\u003cli\u003eRemove power before inserting or removing the module unless the applicable system documentation explicitly permits energized replacement.\u003c\/li\u003e\n\u003cli\u003eVerify that the module is mechanically seated before applying input power.\u003c\/li\u003e\n\u003cli\u003eDo not force the module into the chassis connector.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAC Input and Grounding\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eVerify the available AC source against the specified 120 VAC, 50\/60 Hz input.\u003c\/li\u003e\n\u003cli\u003eProvide protective grounding and cabinet bonding according to the applicable electrical installation standard.\u003c\/li\u003e\n\u003cli\u003eKeep AC input conductors separated from low-level signal and communication wiring.\u003c\/li\u003e\n\u003cli\u003eRoute power conductors to minimize unnecessary coupling into I\/O and communication circuits.\u003c\/li\u003e\n\u003cli\u003eInspect terminal connections for mechanical security before energization.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBackplane Loading\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCalculate the total chassis backplane load before installation.\u003c\/li\u003e\n\u003cli\u003eThe supplied specification identifies 420 mA backplane current for the power supply.\u003c\/li\u003e\n\u003cli\u003eDo not exceed the applicable chassis power budget.\u003c\/li\u003e\n\u003cli\u003eVerify redundant supply arrangements using the correct PLC-5 system documentation.\u003c\/li\u003e\n\u003cli\u003eDo not assume hot-swap operation unless explicitly supported by the applicable hardware documentation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat PLC family is the 1771-P4R designed for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe supplied information identifies the 1771-P4R as a redundant power supply for the Allen-Bradley PLC-5 platform.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the specified AC input?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe product information specifies 120 VAC at 50\/60 Hz. A separate 0-24 VAC value is also supplied but is not sufficiently defined to establish an input range.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat DC voltage does the unit provide?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe product information specifies a 5 VDC output for the PLC-5 chassis power system.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the rated current?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe product description identifies the unit as an 8 A power supply. The supplied data separately lists 420 mA as the backplane current.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow many slots does the 1771-P4R occupy?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe supplied product information specifies a one-slot configuration. Physical installation should use a compatible PLC-5 chassis position.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs the power supply redundant?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The product information explicitly identifies the 1771-P4R as a redundant power supply. Specific redundancy switching behavior is not provided.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs hot-swapping supported?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHot-swapping is not confirmed by the supplied specifications. Installation or removal should be performed with power removed unless the applicable PLC-5 documentation explicitly permits energized replacement.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat environmental conditions are specified?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOperating temperature is 0 deg C to +60 deg C, storage temperature is -40 deg C to +85 deg C, and humidity is 5-95% RH, non-condensing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066444206253,"sku":"1771-P4R","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/allen-bradley_1771-p4r_890e02f3-8d85-49e1-bdde-52de22406915.jpg?v=1786889798","url":"https:\/\/www.maxwellplc.com\/ru\/products\/1771-p4r-allen-bradley-power-supply-plc-5","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}