{"product_id":"rm7895a1014-honeywell-7800-series-relay-module","title":"RM7895A1014 | Honeywell | 7800 Series Relay Module","description":"\u003cp\u003eConfigured for automatic burner sequencing and intermittent pilot flame safety control in 7800 Series platforms, the \u003cstrong\u003eHoneywell RM7895A1014\u003c\/strong\u003e (\u003cstrong\u003eRM7895A\u003c\/strong\u003e Primary Burner Control) provides direct physical execution of safety interlocks and valve actuation. The microprocessor-based relay module processes flame detector signals, enforces selectable safety interlocks, and coordinates timing sequences across a 120 VAC 50\/60 Hz line supply. It manages a 4-second or 10-second pilot flame establishing period alongside an intermittent main flame sequence, automatically cutting off fuel supply paths upon flame failure detection.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eRM7895A1014\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.25 kg (2.75 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e127 mm x 127 mm x 133 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e120 VAC (+10\/-15%), 50\/60 Hz, 10 W max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eFlame Safety Burner Control Relay Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePilot Type\u003c\/td\u003e\n\u003ctd\u003eIntermittent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePilot Flame Establishing Period\u003c\/td\u003e\n\u003ctd\u003e4 sec or 10 sec (selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Interlocks\u003c\/td\u003e\n\u003ctd\u003eSelectable interlock inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Platform\u003c\/td\u003e\n\u003ctd\u003eHoneywell 7800 Series\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 \u0026amp; Channel-to-Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe RM7895A1014 integrates high-voltage isolation barriers between internal microcomputer logic and external line-voltage terminal outputs driving gas valves, ignition transformers, and alarm circuits. While nearby process instrumentation channels transmit data over 4-20 mA HART loop protocol connections in shared control enclosures, the RM7895A1014 uses internal high-frequency noise suppression to prevent ignition transformer switching transients from coupling onto surrounding low-voltage analog signal lines or degrading channel-to-channel isolation on adjacent loop interfaces.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Is live insertion or hot-swapping supported for the RM7895A1014 module?\u003c\/p\u003e\n\u003cp\u003eA: No, all line voltage must be completely isolated from the wiring subbase prior to inserting or removing the relay module to prevent connector arcing and internal logic damage.\u003c\/p\u003e\n\u003cp\u003eQ: How is the pilot flame establishing period configured on this module?\u003c\/p\u003e\n\u003cp\u003eA: The pilot flame establishing period is set to either 4 seconds or 10 seconds via internal hardware jumper configurations prior to mounting the card onto its terminal subbase.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDe-energize all power feeds to the Q7800 subbase before mounting or replacing the RM7895A1014 relay module.\u003c\/li\u003e\n\u003cli\u003eAlign the rear connector block with the Q7800 subbase guide slots and press the module straight in until the side retention latches click into place.\u003c\/li\u003e\n\u003cli\u003eKeep high-energy ignition leads isolated from low-voltage flame sensor cabling, routing them in grounded flexible steel conduits to limit electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eEnsure the subbase frame ground connection maintains low-impedance earth continuity to allow stable flame current signal sensing.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53625562366261,"sku":"RM7895A1014","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/RM7895A1014.png?v=1790055888","url":"https:\/\/www.5gplc.com\/products\/rm7895a1014-honeywell-7800-series-relay-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}