{"product_id":"honeywell-51450991-001-switching-power-supply-module","title":"Honeywell 51450991-001 Switching Power Supply Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Honeywell 51450991-001 is a high-reliability switching power supply module engineered for industrial automation systems. It provides stable, regulated DC power distribution to controller backplanes, I\/O modules, and communication subsystems. Designed for continuous operation in demanding environments such as refineries, power plants, and petrochemical facilities, this module ensures consistent voltage regulation to prevent system instability and controller-level shutdowns.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDual-rail output architecture providing 5 VDC and 24 VDC rails.\u003c\/li\u003e\n\u003cli\u003eHigh-efficiency switching topology for reduced power consumption and heat dissipation.\u003c\/li\u003e\n\u003cli\u003eUniversal AC input range (90 to 264 VAC) for global compatibility.\u003c\/li\u003e\n\u003cli\u003eIntegrated protection features including overcurrent, thermal shutdown, and input surge protection.\u003c\/li\u003e\n\u003cli\u003eOptimized for rack-mounted controller environments with natural convection cooling.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is primarily used in Honeywell distributed control systems (DCS) and industrial controller racks. It serves as a critical power component for maintaining the operational integrity of logic circuits and field interface subsystems in continuous manufacturing and process control applications.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e51450991-001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e90 to 264 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency\u003c\/td\u003e\n\u003ctd\u003e47 to 63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e1.4 A maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e5 VDC (6 A max) \/ 24 VDC (2 A max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Output Power\u003c\/td\u003e\n\u003ctd\u003e58 W continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 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 to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e5 to 95 percent non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling\u003c\/td\u003e\n\u003ctd\u003eNatural convection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the power supply is installed in a clean, dry environment within the specified temperature range.\u003c\/li\u003e\n\u003cli\u003eVerify that the input power source matches the 90-264 VAC range before connection.\u003c\/li\u003e\n\u003cli\u003eMaintain adequate clearance around the module to allow for natural convection airflow; do not obstruct ventilation paths.\u003c\/li\u003e\n\u003cli\u003eEnsure all wiring is properly secured and that the module is correctly seated in the controller rack or cabinet.\u003c\/li\u003e\n\u003cli\u003eAlways disconnect primary power before inserting or removing the module from the rack to prevent electrical arcing or damage to backplane connectors.\u003c\/li\u003e\n\u003cli\u003eUse appropriate grounding practices to minimize EMI\/RFI interference in the control cabinet.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the primary function of the 51450991-001?\u003c\/strong\u003e\u003cbr\u003eThis module converts AC line voltage into stable 5 VDC and 24 VDC outputs to power Honeywell controller backplanes and associated I\/O modules.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this module require forced-air cooling?\u003c\/strong\u003e\u003cbr\u003eNo, the module is designed for natural convection cooling. Ensure sufficient space is provided around the unit for heat dissipation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat protection features are included?\u003c\/strong\u003e\u003cbr\u003eThe unit features built-in overcurrent protection, thermal shutdown, and input surge protection to safeguard downstream electronics.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":50734199308540,"sku":"51450991-001","price":172.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_3037a6f4-c9dc-4196-8e6e-d3365bd04dff.jpg?v=1785302671","url":"https:\/\/www.electronicplc.com\/es\/products\/honeywell-51450991-001-switching-power-supply-module","provider":"Electronic PLC","version":"1.0","type":"link"}