{"product_id":"honeywell-rm7840l1026-relay-module-trusted-supplier","title":"RM7840L1026 | Honeywell RM7800 Series Burner Control Relay Module 120VAC","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"18\" data-end=\"484\"\u003eThe Honeywell RM7840L1026 is a microprocessor-based burner control relay module designed for automatic sequencing and flame supervision in single-burner gas, oil, or combination fuel applications. Operating at 120 VAC, 50\/60 Hz, it provides a 10-second or intermittent main flame establishing period with lockout interlocks and intermittent second-stage pilot valve control. The RM7840L1026 supports advanced diagnostics, non-volatile memory retention, and compatibility with Honeywell flame detectors.\u003c\/p\u003e\n\u003ch3 data-start=\"486\" data-end=\"509\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBurner Control Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRM7840L1026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlame Safeguard Relay Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRM7800 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlame Establishing Period\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 Second or Intermittent Main Flame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePilot Operation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIntermittent Second Stage Pilot (Terminal 21)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEarly Spark Termination\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes, 5 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°F to 140°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiagnostic Indicators\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFive LED status indicators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRun\/Test Switch\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFive-function switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlame Amplifier Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInterchangeable plug-in amplifiers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMemory Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNon-volatile memory (retains history and lockout status)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication Capability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompatible with S7800 Keyboard Display Module (not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle-burner gas, oil, or combination fuel systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About RM7840L1026\u003c\/h4\u003e\n\u003cp\u003eThe RM7840L1026 is part of Honeywell’s RM7800 Series programming control platform engineered for industrial burner management systems. It integrates flame supervision, burner sequencing, and system diagnostics within a solid-state microprocessor-based module. The unit features LED status indicators, a five-position Run\/Test switch, and plug-in flame amplifier compatibility for flexible flame detection configuration. Designed for use with compatible subbases, display modules, and purge cards, it supports local or remote annunciation and maintains operational history and lockout information through non-volatile memory.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong data-start=\"1085\" data-end=\"1102\"\u003eKey Features:\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMicroprocessor-Based Burner Control: Provides automatic sequencing and flame supervision for single-burner systems.\u003c\/li\u003e\n\u003cli\u003e120 VAC Operation: Rated for 120 VAC, 50\/60 Hz power supply.\u003c\/li\u003e\n\u003cli\u003e10-Second or Intermittent Main Flame Establishing Period: Configurable flame establishing timing for application requirements.\u003c\/li\u003e\n\u003cli\u003eLockout Interlocks: Integrated safety lockout functions for secure burner operation.\u003c\/li\u003e\n\u003cli\u003eIntermittent Pilot Valve Control: Terminal 21 supports intermittent pilot functionality.\u003c\/li\u003e\n\u003cli\u003eLED Status Indication: Five onboard LEDs provide real-time sequence and diagnostic information.\u003c\/li\u003e\n\u003cli\u003eNon-Volatile Memory: Retains lockout status and history files after power loss.\u003c\/li\u003e\n\u003cli\u003eInterchangeable Plug-In Amplifiers: Supports multiple flame detection methods compatible with Honeywell flame detectors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe RM7840L1026 delivers the reliability and precision required for industrial burner management and flame safeguard control systems.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":51206123979050,"sku":"RM7840L1026","price":2129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/s-l1600_70361981-c9ae-44cb-a78b-f7ef2056e5fc.webp?v=1772557210","url":"https:\/\/iqelectro.com\/products\/honeywell-rm7840l1026-relay-module-trusted-supplier","provider":"IQElectro","version":"1.0","type":"link"}