{"product_id":"honeywell-st7800a1005-pre-purge-timer","title":"Honeywell ST7800A1005 Pre-Purge Timer","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHoneywell ST7800A1005\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a reliable pre-purge timer for the 7800 Series burner control relay modules. It ensures safe startup by providing a fixed pre-purge interval, clearing residual gases before ignition. This design improves combustion system safety and maintains compliance with burner startup standards. The module installs easily with a plug-in configuration and mechanical interlock, offering secure integration in demanding environments.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel\u003c\/strong\u003e: ST7800A1005\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e: Pre-purge timer for 7800 Series relay modules\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTiming Interval\u003c\/strong\u003e: Fixed at 2 seconds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e: Honeywell 7800 Series (excluding RM7838C)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e: Plug-in module with mechanical interlock\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e: UL Recognized (File No. MP268), CSA Certified (File No. LR95329-3), FM Approved\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e: 120 VAC, 50\/60 Hz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFlame Safeguard System\u003c\/strong\u003e: Microprocessor-based\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFlame Failure Response Time\u003c\/strong\u003e: 1 second or less\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePilot Ignition\u003c\/strong\u003e: Intermittent or interrupted pilot\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePurge Timing\u003c\/strong\u003e: Defined by application and setup\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAmbient Temperature Range\u003c\/strong\u003e: -40°F to +140°F (-40°C to +60°C)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSafety Features\u003c\/strong\u003e: Electrical shock and fire hazard warnings with verified safety requirements during installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HoneyWell","offers":[{"title":"Default Title","offer_id":42330487685210,"sku":"ST7800A1005","price":136.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/ST7800A10052.jpg?v=1758615325","url":"https:\/\/www.plcmasters.com\/de\/products\/honeywell-st7800a1005-pre-purge-timer","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}