{"product_id":"rh926kq-foxboro-i-a-series-technical-manual-datasheet","title":"RH926KQ FOXBORO I\/A Series Technical Manual \u0026 Datasheet","description":"\u003ch2\u003eFOXBORO RH926KQ I\/A Series Power Cable\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFOXBORO RH926KQ\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eFOXBORO RH926KQ\u003c\/strong\u003e Power Cable, operates as a dedicated hardware component for distribution of electrical power within Foxboro I\/A Series DCS network structures.\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\u003eRH926KQ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFOXBORO (Invensys \/ Schneider Electric)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003ePower Cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eFoxboro I\/A Series DCS \/ FBM Baseplates\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Limits\u003c\/td\u003e\n\u003ctd\u003eOperating: 0 to 60 deg C; Storage: -40 to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e95% RH non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Application\u003c\/td\u003e\n\u003ctd\u003eFieldbus Module electrical distribution bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMechanical Profile\u003c\/td\u003e\n\u003ctd\u003eHeavy-duty jacketed multi-conductor assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE, UL, CSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Weight\u003c\/td\u003e\n\u003ctd\u003e0.25 kg (cable assembly net weight)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e3.0 kg (packaged gross weight)\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDCS Process Control and Loop Protocols\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eFOXBORO RH926KQ\u003c\/strong\u003e provides the physical infrastructure to maintain 4-20 mA HART loop protocol stability and deterministic supply paths across Fieldbus Module (FBM) baseplates. By delivering steady electrical rails to adjacent modules, it helps enforce channel-to-channel isolation and channel-to-bus isolation parameters inside the termination network. This distribution setup prevents localized ground faults or loop noise from spreading through adjacent instrumentation paths. The heavy-duty conductor insulation profiles minimize cross-talk and induction factors, ensuring that analog process measurements remain uncompromised and cold junction compensation circuits track accurately during transient thermal shifts.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the mechanical design of the RH926KQ prevent power supply interruption during thermal expansion spikes?\u003c\/p\u003e\n\u003cp\u003eA: The cable assembly features industrial-grade, molded strain-relief boots and locking connection headers that prevent physical pin displacement caused by thermal expansion, contraction, or continuous low-frequency cabinet vibration.\u003c\/p\u003e\n\u003cp\u003eQ: Is this power cable rated for live-insertion procedures (hot-swapping) on an active FBM baseplate?\u003c\/p\u003e\n\u003cp\u003eA: No. While many Foxboro FBM cards support hot-swapping, the primary power distribution cables like the RH926KQ must be connected or disconnected only when the upstream circuit breaker is open to prevent arcing and transient voltage dips on the shared backplane bus.\u003c\/p\u003e\n\u003cp\u003eQ: What insulation parameters govern this power cable in highly corrosive atmospheres?\u003c\/p\u003e\n\u003cp\u003eA: The cable jacket uses specialized chemical-resistant polymers designed to resist deterioration in humid environments up to 95% RH. This jacketing prevents moisture from forming parallel leakage paths between internal voltage conductors.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius Compliance\u003c\/strong\u003e: Maintain a minimum dynamic bend radius of ten times the overall cable diameter during routing inside the cabinet panels to prevent stress fractures in the internal copper conductors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Seating Engagement\u003c\/strong\u003e: Insert the cable headers firmly into the baseplate power input sockets until the integrated mechanical retention clips snap into position, ensuring a low-resistance electrical interface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeparation of Power and Signal\u003c\/strong\u003e: Route this DCS power cable assembly through separated wire tracking paths away from low-level analog input cables and high-voltage AC motor starter circuits to avoid electromagnetic noise coupling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Grounding Matrix\u003c\/strong\u003e: Verify that any associated drain lines or structural shield conductors land directly at the designated single-point system ground bar rather than looping back onto active baseplate circuit common traces.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Foxboro","offers":[{"title":"Default Title","offer_id":43450730315866,"sku":"RH926KQ","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/198_3266d6a5-e71e-47a3-aa2c-87b2a39f8e36.jpg?v=1780554138","url":"https:\/\/www.spareoil.com\/products\/rh926kq-foxboro-i-a-series-technical-manual-datasheet","provider":"SpareOil Automation","version":"1.0","type":"link"}