{"product_id":"allen-bradley-1746-p3-dc-system-power-supply","title":"Allen-Bradley 1746-P3 SLC 500 DC System Power Supply","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1746-P3 is a dedicated DC system power supply module engineered for the SLC 500 controller platform. Designed for environments where 24V DC is the primary power source, this module provides reliable, regulated backplane power to the SLC processor and its associated I\/O modules. It is particularly well-suited for mobile equipment, solar-powered installations, and industrial facilities utilizing a centralized DC bus architecture.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Compatibility:\u003c\/strong\u003e Operates on a nominal 24V DC input with a functional range of 19.2 to 28.8V DC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Power:\u003c\/strong\u003e Delivers 3.6 Amps at 5V DC and 0.87 Amps at 24V DC to the chassis backplane.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Design:\u003c\/strong\u003e Features 600V AC RMS isolation voltage to mitigate industrial electrical noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuit Protection:\u003c\/strong\u003e Equipped with a replaceable 1746-F3 fuse to protect against overcurrent conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHold-up Time:\u003c\/strong\u003e Provides 5 ms of hold-up time at full load to maintain system stability during minor power fluctuations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\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 Line\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e19.2 - 28.8V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInrush Current\u003c\/td\u003e\n\u003ctd\u003e20.0 Amps (max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput (5V DC)\u003c\/td\u003e\n\u003ctd\u003e3.6 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput (24V DC)\u003c\/td\u003e\n\u003ctd\u003e0.87 Amps (870 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Power\u003c\/td\u003e\n\u003ctd\u003e61 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 degC (32 to 140 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e The 1746-P3 must be installed in the far-left slot of the 1746 chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety:\u003c\/strong\u003e Always disconnect the main power source before installing or removing the power supply from the chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Ensure the chassis is properly grounded according to local electrical codes to maintain noise immunity and safety.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironment:\u003c\/strong\u003e Maintain adequate clearance around the module for ventilation. Ensure the operating environment remains within the specified temperature range of 0 to 60 degC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandling:\u003c\/strong\u003e Use standard ESD precautions when handling the module to prevent damage to internal electronic components.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the primary application for the 1746-P3?\u003c\/h3\u003e\u003cp\u003eThe 1746-P3 is intended for SLC 500 systems that require a 24V DC power input, rather than standard AC mains. It is ideal for remote, mobile, or battery-backed industrial control applications.\u003c\/p\u003e\u003ch3\u003eCan I replace the fuse on this module?\u003c\/h3\u003e\u003cp\u003eYes, the module is designed with a replaceable 1746-F3 fuse to protect the internal circuitry from overcurrent events.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":50739969655036,"sku":"1746-P3","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_9210614e-0953-4abc-9e19-77f37045a7bd.jpg?v=1785398040","url":"https:\/\/www.electronicplc.com\/ar\/products\/allen-bradley-1746-p3-dc-system-power-supply","provider":"Electronic PLC","version":"1.0","type":"link"}