{"product_id":"allen-bradley-1336-pb-sp2b-precharge-pc-board","title":"Allen-Bradley 1336-PB-SP2B Precharge PC Board","description":"\u003cp\u003eThe Allen-Bradley 1336-PB-SP2B is a precharge printed circuit board designed for use within the 1336 series drive systems. This component is essential for managing the initial inrush current during the power-up sequence of the drive, protecting sensitive internal electronics from voltage spikes and surge currents.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOriginal Allen-Bradley component for 1336 series drives\u003c\/li\u003e\n\u003cli\u003eManages DC bus precharge sequence\u003c\/li\u003e\n\u003cli\u003eProtects drive power components from high inrush current\u003c\/li\u003e\n\u003cli\u003eDirect replacement for specified 1336 drive configurations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e1336-PB-SP2B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpare Part Number\u003c\/td\u003e\n\u003ctd\u003e74101-502-51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent Type\u003c\/td\u003e\n\u003ctd\u003ePrecharge PC Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the drive is completely disconnected from the main power supply and that the DC bus capacitors have been fully discharged before attempting to access or replace the board.\u003c\/li\u003e\n\u003cli\u003eObserve standard electrostatic discharge (ESD) precautions when handling the circuit board to prevent damage to integrated components.\u003c\/li\u003e\n\u003cli\u003eVerify that the replacement board matches the original part number and revision level required by your specific drive model.\u003c\/li\u003e\n\u003cli\u003eEnsure all ribbon cables and terminal connections are securely seated and free of debris or oxidation before restoring power.\u003c\/li\u003e\n\u003cli\u003eInspect the surrounding drive environment for signs of heat damage or debris that may have contributed to the failure of the previous board.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs the 1336-PB-SP2B still in production?\u003c\/strong\u003e\u003cbr\u003eNo, this model has been discontinued by the manufacturer. We provide high-quality spare parts to support legacy systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the function of this board?\u003c\/strong\u003e\u003cbr\u003eThe precharge board limits the current flowing into the drive's DC bus capacitors during the initial power-up phase to prevent damage to the rectifier and contactor components.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":50956775096572,"sku":"1336-PB-SP2B","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_97549c5c-2715-4915-aa3e-9d2b00656f34.jpg?v=1786322827","url":"https:\/\/www.electronicplc.com\/ar\/products\/allen-bradley-1336-pb-sp2b-precharge-pc-board","provider":"Electronic PLC","version":"1.0","type":"link"}