{"product_id":"honeywell-51303940-100-dual-cabinet-fan-assembly","title":"Honeywell 51303940-100 Dual Cabinet Fan Assembly","description":"\u003ch2\u003eHoneywell 51303940-100 Dual Cabinet Fan Assembly\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eHoneywell 51303940-100\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e51303940\u003c\/strong\u003e dual cabinet fan assembly, operates as a dedicated hardware component for forced-air cooling within PM, APM, and HPM cabinet systems.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\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\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003e51303940-100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eApprox. 4.5 lbs (2.04 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e12.0 in × 6.0 in × 5.0 in (30.5 cm × 15.2 cm × 12.7 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temp\u003c\/th\u003e\n\u003ctd\u003eStandard control-room range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Consumption\u003c\/th\u003e\n\u003ctd\u003e100 mA (0.1 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput Voltage\u003c\/th\u003e\n\u003ctd\u003e115 VAC \/ 12 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrequency\u003c\/th\u003e\n\u003ctd\u003e50 \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003ctd\u003eDual-fan assembly (two blowers side-by-side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Type\u003c\/th\u003e\n\u003ctd\u003eSealed ball bearings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAirflow Type\u003c\/th\u003e\n\u003ctd\u003eForced-air cabinet cooling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatibility\u003c\/th\u003e\n\u003ctd\u003ePM, APM, HPM, UCN cabinets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMonitoring\u003c\/th\u003e\n\u003ctd\u003eBuilt-in fan speed sensor and alarm circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol\u003c\/h3\u003e\n\u003cp\u003eThis assembly integrates with Honeywell cabinet systems where 4-20 mA HART loop protocol is standard for process instrumentation. The fan alarm circuit interfaces with cabinet monitoring nodes, enabling channel-to-channel isolation and ensuring that fan speed signals are transmitted without interference. Cold junction compensation (CJC) principles are applied in the alarm board design to stabilize thermal readings during cabinet operation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the fan assembly support hot-swap replacement? A: No, cabinet power must be isolated before removal or installation to prevent backplane current disruption.\u003c\/p\u003e\n\u003cp\u003eQ: What is the typical backplane load impact of the alarm circuit? A: The integrated alarm board consumes minimal current, designed not to exceed 100 mA under rated operation.\u003c\/p\u003e\n\u003cp\u003eQ: Is firmware upgrade required for compatibility? A: No, the fan assembly operates as a hardware-only component and does not require firmware updates.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the dual-fan assembly directly onto designated cabinet ventilation cutouts using standard hardware.\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding of the alarm circuit board to the cabinet earth bus to avoid signal noise.\u003c\/li\u003e\n\u003cli\u003eRoute power supply wiring separately from control signal cabling to minimize electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eVerify airflow direction before securing installation to maintain cabinet cooling efficiency.\u003c\/li\u003e\n\u003cli\u003eInspect sealed ball bearings during installation to confirm mechanical integrity.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":44088071618634,"sku":"51303940-100","price":850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/8569\/3770\/files\/50136386-250_1.png?v=1758166369","url":"https:\/\/www.topbrandsplc.com\/products\/honeywell-51303940-100-dual-cabinet-fan-assembly","provider":"Topbrands PLC Limited","version":"1.0","type":"link"}