{"product_id":"allen-bradley-1746-p4-slc-500-power-supply","title":"Allen-Bradley 1746-P4 SLC 500 Power Supply","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1746-P4 is a reliable and robust modular power supply designed specifically for the Allen-Bradley SLC 500 fixed and modular controller systems. This unit provides regulated 5VDC and 24VDC power directly to the backplane of the local chassis, supporting CPU operation, communication modules, and digital or analog I\/O expansion modules. Built for industrial automation environments, it ensures reliable distribution of backplane power while maintaining system integrity during routine line fluctuations.\u003c\/p\u003e\n\u003cp\u003eFeaturing a selectable line voltage input range, the 1746-P4 adapts easily to common industrial power distribution standards. It includes built-in hold-up time capabilities to keep the processor scanning safely during brief voltage sags or brownouts, and initiates controlled shutdowns when input power is lost for extended periods. The soldered internal fuse and high-isolation design protect sensitive downstream electronics against electrical noise and ground disturbances commonly found in factory floor settings.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cdiv\u003eSelectable input voltage range supporting 85 to 132 VAC or 170 to 265 VAC at 47 to 63 Hz\u003c\/div\u003e\n  \u003cdiv\u003eDelivers up to 10.0 A of internal current capacity at 5 VDC for backplane power\u003c\/div\u003e\n  \u003cdiv\u003eDelivers up to 2.88 A of internal current capacity at 24 VDC\u003c\/div\u003e\n  \u003cdiv\u003eProvides 1 A at 24 VDC user power current capacity for compatible field devices\u003c\/div\u003e\n  \u003cdiv\u003eBuilt-in CPU hold-up time of 20 ms at full load and up to 3,000 ms at no load\u003c\/div\u003e\n  \u003cdiv\u003eStandard 32 to 140 Fahrenheit (0 to 60 Celsius) operating temperature range with no derating required\u003c\/div\u003e\n  \u003cdiv\u003eRobust 2,600 VDC isolation tested for 1 second to ensure operator and equipment safety\u003c\/div\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cdiv\u003eAllen-Bradley SLC 500 modular rack power distribution\u003c\/div\u003e\n  \u003cdiv\u003eDiscrete and analog I\/O chassis backplane power supply\u003c\/div\u003e\n  \u003cdiv\u003eFactory automation and discrete manufacturing lines\u003c\/div\u003e\n  \u003cdiv\u003eMaterial handling and conveyor control systems\u003c\/div\u003e\n  \u003cdiv\u003eWater and wastewater treatment processing equipment\u003c\/div\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\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\u003eManufacturer\u003c\/td\u003e\n      \u003ctd\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCatalog Number \/ Model\u003c\/td\u003e\n      \u003ctd\u003e1746-P4\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProduct Type\u003c\/td\u003e\n      \u003ctd\u003eSLC 500 Power Supply\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eLine Voltage Range\u003c\/td\u003e\n      \u003ctd\u003e85 to 132 VAC \/ 170 to 265 VAC (User Selectable)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eLine Frequency\u003c\/td\u003e\n      \u003ctd\u003e47 to 63 Hz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBackplane Current Capacity (5 VDC)\u003c\/td\u003e\n      \u003ctd\u003e10.0 A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBackplane Current Capacity (24 VDC)\u003c\/td\u003e\n      \u003ctd\u003e2.88 A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eUser Power Voltage Range\u003c\/td\u003e\n      \u003ctd\u003e20.4 to 27.6 VDC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eUser Power Current Capacity\u003c\/td\u003e\n      \u003ctd\u003e1.0 A @ 24 VDC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCPU Hold-Up Time\u003c\/td\u003e\n      \u003ctd\u003e20 ms (Full Load) to 3,000 ms (No Load)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n      \u003ctd\u003e2,600 VDC for 1 s\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOperating Temperature\u003c\/td\u003e\n      \u003ctd\u003e0 to 60 Celsius (32 to 140 Fahrenheit)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCountry of Origin\u003c\/td\u003e\n      \u003ctd\u003eUnited States\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cp\u003eEnsure all incoming line voltage is completely disconnected and locked out before installing or removing the 1746-P4 power supply. Mount the power supply securely into the extreme left-hand slot of the SLC 500 modular chassis as mandated by rack architecture guidelines. Connect the protective earth ground terminal directly to the enclosure ground bus bar using low-impedance wire to reduce electromagnetic interference. Verify that the selectable voltage switch on the side of the unit matches your facility's incoming line voltage before applying power.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":53770311401835,"sku":"1746-P4","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/1746-P4_1200x1200_fec67314-ed1d-4d4c-8777-8707ba373da7.jpg?v=1787741052","url":"https:\/\/www.plcprotech.com\/it\/products\/allen-bradley-1746-p4-slc-500-power-supply","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}