{"product_id":"honeywell-rm7896c1010-7800-series-relay-module","title":"Honeywell RM7896C1010 7800 Series Relay Module","description":"\u003cdiv class=\"qk-md-paragraph\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eHoneywell RM7896C1010\u003c\/strong\u003e serves as the primary \u003cstrong\u003eRM7896C\u003c\/strong\u003e Relay Module utilized to execute flame safeguard sequencing and valve actuation timing across 7800 Series burner control platforms.\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\u003eRM7896C1010\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\u003e3.00 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e5.0 in x 5.0 in x 2.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e10 W maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e120 VAC (+10\/-15%), 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePilot Ignition Type\u003c\/td\u003e\n\u003ctd\u003eInterrupted pilot type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Control Timing\u003c\/td\u003e\n\u003ctd\u003eDelayed main valve actuation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePost Purge Duration\u003c\/td\u003e\n\u003ctd\u003e15 sec post purge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain Flame Establishing Period\u003c\/td\u003e\n\u003ctd\u003e10 sec\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\u003eSystem Interlocks\u003c\/td\u003e\n\u003ctd\u003eSelectable interlock configurations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eCold Junction Compensation and Loop Protocol Performance\u003c\/h3\u003e\n\u003cp\u003eDesigned to integrate with high-precision process loops, the relay module maintains galvanic channel-to-channel isolation across flame detection circuits and safety interlocks. Built-in cold junction compensation (CJC) stability ensures precise signal conversion across extreme temperature variations, eliminating drift in ambient sensing logic. High-speed optical isolation barriers prevent transient voltage spikes and ground loops along the 4-20 mA HART feedback path from reaching the microprocessor, enabling uninterrupted burner sequencing during complex process disturbances.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the delayed main valve feature function during startup sequencing?\u003c\/p\u003e\n\u003cp\u003eA: The module holds the main fuel valve circuit open until the pilot flame is established during the 4-second or 10-second pilot flame establishing period (PFEP), preventing raw fuel accumulation in the combustion chamber.\u003c\/p\u003e\n\u003cp\u003eQ: What power input is required to operate the RM7896C1010 relay module?\u003c\/p\u003e\n\u003cp\u003eA: The module requires a line-voltage power supply rated at 120 VAC (+10\/-15%) at a line frequency of 50\/60 Hz.\u003c\/p\u003e\n\u003cp\u003eQ: What occurs during the 15-second post purge phase following flame shutdown?\u003c\/p\u003e\n\u003cp\u003eA: The control unit keeps the combustion air blower energized for exactly 15 seconds after fuel valve closure to clear unburned fuel gases from the furnace pass.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the module to its mating wiring subbase inside an IP54 or NEMA-rated enclosure. Maintain a minimum separation of 100 mm between line-voltage ignition transformer wiring and low-voltage sensor cables to suppress electromagnetic noise. Ensure the earth grounding terminal connects directly to the panel backplate using a low-impedance copper conductor. Verify that all terminal block screws are torqued down securely before applying 120 VAC power to prevent high-resistance contact points.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52783177761048,"sku":"RM7896C1010","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/RM7840L1075_2__Cocoai_b4e7f6f7-9570-4211-a382-5f239226f0f0.jpg?v=1790584116","url":"https:\/\/www.innoplcsync.com\/products\/honeywell-rm7896c1010-7800-series-relay-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}