{"product_id":"1746-p4-allen-bradley-slc-500-power-supply-module","title":"1746-P4 Allen-Bradley SLC 500 Power Supply Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1746-P4\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1746-P4\u003c\/strong\u003e SLC 500 Power Supply Module, operates as a dedicated power conversion component for supplying backplane and field power requirements within SLC 500 control platforms.\u003c\/p\u003e\n\u003ch3\u003eModel Configuration Overview\u003c\/h3\u003e\n\u003cp\u003eThe 1746-P4 is an SLC 500 power supply module designed to provide regulated DC power distribution for SLC processor and I\/O chassis operation. The module accepts 120 to 220 VAC input and supplies backplane power through the SLC 500 rack structure.\u003c\/p\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\u003e1746-P4\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eSLC 500 Power Supply Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSLC 500\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\u003e1.35 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e19.5 cm x 20.5 cm x 17.2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e92 Watts input power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e120 to 220 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Line Power Requirement\u003c\/td\u003e\n\u003ctd\u003e180 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInrush Current\u003c\/td\u003e\n\u003ctd\u003e45 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5 VDC)\u003c\/td\u003e\n\u003ctd\u003e10 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (24 VDC)\u003c\/td\u003e\n\u003ctd\u003e0.46 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Current Capacity\u003c\/td\u003e\n\u003ctd\u003e10.0 A at 5 VDC, 2.88 A at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e18 to 30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPU Hold Up Time\u003c\/td\u003e\n\u003ctd\u003e20 ms at full load, 3000 ms at no load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eSLC 500 Power Distribution Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1746-P4 provides chassis power conversion for SLC 500 processor and I\/O modules. The power supply regulates DC output levels for the backplane bus, supporting processor communication and module operation.\u003c\/p\u003e\n\u003cp\u003eThe SLC 500 architecture uses defined backplane power distribution. The 1746-P4 current capacity must be matched with installed processor and I\/O module loading to maintain correct system operation.\u003c\/p\u003e\n\u003ch3\u003eFirmware and Backplane Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe SLC 500 platform uses fixed backplane communication structures between processors, power supplies, and I\/O modules. The 1746-P4 does not provide firmware functions but supports the electrical requirements of SLC 500 hardware configurations.\u003c\/p\u003e\n\u003cp\u003eSystem design requires verification of backplane load calculations, module current consumption, and chassis power requirements before installation.\u003c\/p\u003e\n\u003ch3\u003eOrdering Info\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1746-P4 SLC 500 Power Supply Module\u003c\/li\u003e\n\u003cli\u003e1 x Power supply housing assembly\u003c\/li\u003e\n\u003cli\u003e1 x Factory-installed power conversion circuitry\u003c\/li\u003e\n\u003cli\u003eCompatible SLC 500 chassis installation required separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePower Connection\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVerify AC input voltage range before applying power.\u003c\/li\u003e\n\u003cli\u003eRemove input power before installing or removing the module.\u003c\/li\u003e\n\u003cli\u003eConfirm terminal wiring polarity and connection tightness before startup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBackplane Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the module in the designated SLC 500 chassis power supply position.\u003c\/li\u003e\n\u003cli\u003eCheck processor and I\/O module current demand against available power capacity.\u003c\/li\u003e\n\u003cli\u003eEnsure proper mechanical engagement with chassis connectors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Maintenance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInspect power terminals for overheating or mechanical looseness.\u003c\/li\u003e\n\u003cli\u003eMaintain cabinet grounding according to industrial control standards.\u003c\/li\u003e\n\u003cli\u003eMonitor system loading when additional I\/O modules are added.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat input voltage range does the 1746-P4 support?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 1746-P4 accepts 120 to 220 VAC input power for SLC 500 system operation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat backplane current does the 1746-P4 provide at 5 VDC?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe module provides up to 10 A backplane current at 5 VDC for connected SLC 500 modules.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eDoes the 1746-P4 provide 24 VDC output?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYes. The module provides an output voltage range of 18 to 30 VDC with 24 VDC current capacity.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat is the inrush current rating of the power supply?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe specified inrush current for the 1746-P4 is 45 A during power application.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCan the 1746-P4 be installed in any SLC 500 position?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNo. The module must be installed according to the SLC 500 chassis power supply configuration.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eDoes the 1746-P4 contain programmable firmware?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNo. The module is a power supply device and does not execute application firmware.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat should be checked before replacing the power supply?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eVerify AC input requirements, chassis compatibility, and total backplane current loading before replacement.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eDoes the 1746-P4 support hot swapping?\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHot swapping is not specified. Power should be removed before installation or removal.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066408652973,"sku":"1746-P4","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1746-P4_1-1.jpg?v=1785907237","url":"https:\/\/www.maxwellplc.com\/ru\/products\/1746-p4-allen-bradley-slc-500-power-supply-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}