{"product_id":"sor-107al-n40-low-pressure-switch-for-hvac-burner-management","title":"SOR 107AL-N40 Low Pressure Switch for HVAC \u0026 Burner Management","description":"\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB’s Insight\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #e67e22;\"\u003e107AL-N40-P1-F0A-X\u003c\/span\u003e\u003c\/strong\u003e represents a pinnacle in micro-differential pressure sensing.\u003c\/li\u003e\n  \u003cli\u003eUnlike standard industrial switches, this model utilizes an oversized diaphragm to capture minute pressure fluctuations.\u003c\/li\u003e\n  \u003cli\u003eThis design ensures high sensitivity in draft ranges for precision control.\u003c\/li\u003e\n  \u003cli\u003eIt is an essential component for safety-critical environments requiring \u003cstrong\u003eSIL 1\u003c\/strong\u003e or \u003cstrong\u003eSIL 2\u003c\/strong\u003e compliance.\u003c\/li\u003e\n  \u003cli\u003eEngineering teams favor this unit for its robust cast iron housing and hermetically sealed switching elements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eProduct Introduction\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #e67e22;\"\u003e107AL-N40-P1-F0A-X\u003c\/span\u003e\u003c\/strong\u003e is a field-mounted differential pressure switch designed for high-precision industrial monitoring.\u003c\/li\u003e\n  \u003cli\u003eThis instrument excels in detecting very low pressures within air or gas services.\u003c\/li\u003e\n  \u003cli\u003eIt features a \u003cstrong\u003eSPDT\u003c\/strong\u003e switching element for reliable signal output to control systems.\u003c\/li\u003e\n  \u003cli\u003eThe rugged construction suits demanding process industries and hazardous locations.\u003c\/li\u003e\n  \u003cli\u003eUsers can easily perform site calibrations via the external set point adjustment.\u003c\/li\u003e\n  \u003cli\u003eThe integrated visual scale provides immediate feedback during manual operation and setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e \u003cspan style=\"color: #e67e22;\"\u003e\u003cstrong\u003eSOR Controls Group (SOR)\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e \u003cspan style=\"color: #e67e22;\"\u003e\u003cstrong\u003e107AL-N40-P1-F0A-X\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure Range:\u003c\/strong\u003e Optimized for low differential and draft ranges.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum System Pressure:\u003c\/strong\u003e 10 psig (0.69 bar) with vacuum protection to 30” Hg.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwitching Element:\u003c\/strong\u003e \u003cstrong\u003eSPDT\u003c\/strong\u003e explosion-proof hermetically sealed capsule.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectrical Rating:\u003c\/strong\u003e 5 Amps at 250 VAC and 5.0 Amps at 30 VDC (resistive).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Limits:\u003c\/strong\u003e Ambient and process range from -40 to 150°F (-40 to 65°C).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHousing Material:\u003c\/strong\u003e Durable \u003cstrong\u003eCast Iron\u003c\/strong\u003e for maximum environmental protection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody and Port Material:\u003c\/strong\u003e 356-T6 aluminum body with plated cold-rolled steel ports.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Size:\u003c\/strong\u003e 1\/8” NPT(F) process connection and 1\/2” NPT(M) electrical conduit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensitivity:\u003c\/strong\u003e High-accuracy sensing via a large surface area diaphragm.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSafety Integrity:\u003c\/strong\u003e Certified for use in \u003cstrong\u003eSIL1\u003c\/strong\u003e and \u003cstrong\u003eSIL2\u003c\/strong\u003e environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eInstallation and Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMount the \u003cstrong\u003e\u003cspan style=\"color: #e67e22;\"\u003e107AL-N40-P1-F0A-X\u003c\/span\u003e\u003c\/strong\u003e vertically to ensure optimal diaphragm performance.\u003c\/li\u003e\n  \u003cli\u003eThe unit integrates seamlessly with \u003cstrong\u003eHoneywell\u003c\/strong\u003e, \u003cstrong\u003eABB\u003c\/strong\u003e, and \u003cstrong\u003eSiemens\u003c\/strong\u003e HVAC controllers.\u003c\/li\u003e\n  \u003cli\u003eUse 18-AWG color-coded stranded wire leads for all electrical terminations.\u003c\/li\u003e\n  \u003cli\u003eVerify wetted materials like \u003cstrong\u003eBuna-N\u003c\/strong\u003e and \u003cstrong\u003eStainless Steel\u003c\/strong\u003e match your process media.\u003c\/li\u003e\n  \u003cli\u003eThis switch fits Class I, Groups A, B, C, D hazardous locations.\u003c\/li\u003e\n  \u003cli\u003eIt serves as a direct replacement for legacy low-pressure mechanical monitors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCommissioning and Maintenance\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAdjust the external set point using a standard wrench during live operation.\u003c\/li\u003e\n  \u003cli\u003eThe visual indication scale simplifies the calibration process for field technicians.\u003c\/li\u003e\n  \u003cli\u003eInspect the diaphragm housing periodically for debris accumulation in gas lines.\u003c\/li\u003e\n  \u003cli\u003eHermetically sealed contacts eliminate the need for internal cleaning or contact filing.\u003c\/li\u003e\n  \u003cli\u003eCheck electrical seals to maintain the weathertight integrity of the \u003cstrong\u003e\u003cspan style=\"color: #e67e22;\"\u003e107AL\u003c\/span\u003e\u003c\/strong\u003e series.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCertified Applications and Diagnostics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHVAC Systems:\u003c\/strong\u003e Monitors filter pressure drops and airflow in large ducts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBurner Management:\u003c\/strong\u003e Ensures proper draft pressure before boiler ignition sequences.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVibration Monitoring:\u003c\/strong\u003e Complements \u003cstrong\u003eBently Nevada\u003c\/strong\u003e systems in machinery protection loops.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSafety Systems:\u003c\/strong\u003e Functions reliably within \u003cstrong\u003eSafety Instrumented Systems (SIS)\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiagnostics:\u003c\/strong\u003e Detects restricted filters or failing fan motors through pressure shifts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eShipping and Warranty\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e One \u003cstrong\u003e\u003cspan style=\"color: #e67e22;\"\u003e107AL-N40-P1-F0A-X\u003c\/span\u003e\u003c\/strong\u003e unit and technical manual.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 12-month comprehensive professional warranty included.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDispatch Time:\u003c\/strong\u003e Orders ship within 24 to 48 hours.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShipping Carriers:\u003c\/strong\u003e Worldwide express delivery via \u003cstrong\u003eFedEx\u003c\/strong\u003e, \u003cstrong\u003eUPS\u003c\/strong\u003e, or \u003cstrong\u003eDHL\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB Review\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOur technical assessment confirms the \u003cstrong\u003e\u003cspan style=\"color: #e67e22;\"\u003e107AL-N40-P1-F0A-X\u003c\/span\u003e\u003c\/strong\u003e is superior for low-flow detection.\u003c\/li\u003e\n  \u003cli\u003eThe mechanical snap-action is crisp and repeatable over thousands of cycles.\u003c\/li\u003e\n  \u003cli\u003eIt outperforms electronic sensors in high-interference electrical environments.\u003c\/li\u003e\n  \u003cli\u003eThis hardware is compatible with \u003cstrong\u003eDCS\u003c\/strong\u003e and \u003cstrong\u003ePLC\u003c\/strong\u003e inputs across all major industrial platforms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eFAQ and Buying Guide\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong\u003eHow do I select the correct port size for this series?\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003eThe standard model uses 1\/8” NPT; specify F1A if you require 1\/4” NPT connections.\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eCan I use this switch for outdoor installations?\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003eYes, the weathertight and explosion-proof housing handles harsh ambient conditions.\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eIs this model suitable for safety-related trip circuits?\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003eYes, it carries \u003cstrong\u003eIEC 61508\u003c\/strong\u003e certification for \u003cstrong\u003eSIL1\u003c\/strong\u003e and \u003cstrong\u003eSIL2\u003c\/strong\u003e applications.\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eWhat is the advantage of the large sensing diaphragm?\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003eIt provides the mechanical leverage needed to trip the switch at very low pressures.\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eDoes the unit support DC loads?\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003eIt supports up to 5.0 Amps at 30 VDC for resistive industrial loads.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SOR","offers":[{"title":"Default Title","offer_id":45078777200822,"sku":"107AL-N40-P1-F0A-X","price":389.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/107AL-N40-P1-F0A-X.jpg?v=1777013809","url":"https:\/\/www.plcsparehub.com\/products\/sor-107al-n40-low-pressure-switch-for-hvac-burner-management","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}