{"product_id":"51307186-275-honeywell-header-board","title":"51307186-275 | Honeywell | Header Board","description":"\u003ch2\u003eHoneywell 51307186-275 Header Board\u003c\/h2\u003e\n\u003cp\u003eConfigured for logic routing and signal distribution inside Honeywell control platforms, the \u003cstrong\u003eHoneywell 51307186-275\u003c\/strong\u003e (\u003cstrong\u003e51307186\u003c\/strong\u003e header board) provides direct electrical interfacing for modules using logic type \u003cstrong\u003e51454468\u003c\/strong\u003e. The board maintains stable low‑voltage continuity across header terminals and supports hazardous‑location deployment through certified construction.\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\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003e51307186-275\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e320 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temp\u003c\/th\u003e\n\u003ctd\u003e0 deg C to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Consumption\u003c\/th\u003e\n\u003ctd\u003ePassive board; no active draw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLogic Integration\u003c\/th\u003e\n\u003ctd\u003eUses logic type 51454468\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRevision\u003c\/th\u003e\n\u003ctd\u003eRev. E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSafety Ratings\u003c\/th\u003e\n\u003ctd\u003eClass I, Div. 2, Groups A-D, T4; Class I, Zone 2 (FM, ATEX\/IECEx)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlammability Rating\u003c\/th\u003e\n\u003ctd\u003e94V-0 PCB material\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 Behavior\u003c\/h3\u003e\n\u003cp\u003eAlthough the header board does not terminate analog loops directly, it routes low‑voltage signals between logic modules and field termination assemblies. Shielding and PCB trace spacing reduce noise coupling when 4-20 mA or HART‑enabled channels pass through adjacent wiring blocks. Channel‑to‑channel isolation is maintained by the receiving modules, while the board ensures deterministic signal alignment across logic type 51454468.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 51307186-275 be replaced while the system remains energized? A: Header boards typically require the associated module to be placed in a safe or standby state before removal to prevent signal interruption.\u003c\/p\u003e\n\u003cp\u003eQ: Does this board add electrical load to the controller backplane? A: No. It is a passive routing board and introduces no additional current draw beyond the connected modules.\u003c\/p\u003e\n\u003cp\u003eQ: Are firmware updates required for compatibility with logic type 51454468? A: The board contains no firmware. Compatibility depends solely on the logic module’s electrical interface and configuration.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure full seating of the header connector to maintain stable contact under vibration.\u003c\/li\u003e\n\u003cli\u003eMaintain PCB clearance from high‑voltage conductors to avoid induced noise.\u003c\/li\u003e\n\u003cli\u003eVerify grounding continuity according to Honeywell hazardous‑location wiring practices.\u003c\/li\u003e\n\u003cli\u003eAvoid excessive bending or mechanical stress on attached harnesses to preserve conductor integrity.\u003c\/li\u003e\n\u003cli\u003eConfirm correct alignment with logic type 51454468 before energizing the control system.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":48235507286206,"sku":"51307186-275","price":360.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/8C-SHEDA151307186-175_3.png?v=1770087805","url":"https:\/\/www.autooiltech.com\/products\/51307186-275-honeywell-header-board","provider":"AutoOilTech Limited","version":"1.0","type":"link"}