{"product_id":"allen-bradley-1788-fbjb6-1788-linking-devices-6-way-foundation-fieldbus-junction-box","title":"Allen-Bradley 1788-FBJB6 1788 Linking Devices 6-Way Foundation Fieldbus Junction Box","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1788-FBJB6 functions as a high-density FOUNDATION Fieldbus H1 junction box within the 1788 Linking Devices infrastructure series. This hardware component splits a main network trunk line into six independent, current-limited H1 instrument drops, connecting field transmitters, valves, and actuators directly to the control network layer. We distribute this network asset exclusively in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% brand new, original factory condition\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto guarantee full internal terminal plating integrity, prevent signal attenuation over long cable segments, and eliminate diagnostic data loss across your process control loops.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRockwell Automation \/ Allen-Bradley\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1788-FBJB6\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eUPC\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10885630233380\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProduct Line\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1788 Linking Devices \/ Network Infrastructure\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eComponent Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFOUNDATION Fieldbus H1 Junction Box\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eConnector Array Configuration\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1 x Trunk Input, 1 x Trunk Output, 6 x H1 Media Drops\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Input Voltage Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12 to 32V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInternal Power Consumption\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e40 mA @ 24V DC Nominal\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTrunk Output Power Capability\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12 to 32V DC @ 0.48 Amps Maximum\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePer-Drop Output Power Allocation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12 to 32V DC @ 40 mA Maximum\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTerminal Screw Torque Target\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.5 to 0.6 Nm (4.4 to 5.3 lb-in)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eEnclosure Ingress Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP20\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMaximum Operating Altitude\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2000 Meters Above Sea Level\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eHumidity Operating Tolerance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5% to 95% Non-condensing\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMechanical Shock Resistance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e15 G Peak (Operating) \/ 30 G Peak (Non-operating)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMaximum Thermal Threshold\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 60°C (140°F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNet Assembly Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.75 lbs (0.34 kg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIsolates Faulty Field Drops Intermittently:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe internal electronic circuitry monitors each of the six H1 media drops independently. If a field instrument shorts out or suffers a water intrusion failure, the junction box limits the affected branch current to 40 mA, preventing the localized short circuit from collapsing the main network trunk power or disrupting the remaining active field devices.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSimplifies Dual-Choice Structural Mounting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe compact 0.75 lbs physical frame accommodates standard 35mm DIN rail snapping or direct panel surface-mount screw installation. This structural adaptability allows control engineers to mount the junction box inside shallow marshalling cabinets, remote terminal enclosures, or localized junction boxes directly adjacent to the processing skid.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEliminates Inductive Cable Noise Accumulation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe optimized internal bus-bar architecture maintains strict differential signaling parameters across the trunk and drop pathways. This structural design rejects high-frequency electromagnetic interference (EMI) generated by nearby power cables and variable frequency drives, ensuring clean data transfers up to altitudes of 2000 meters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSecures Field Conductors Against Heavy Machinery Vibrations:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe heavy-duty screw terminals withstand a continuous torque pressure of 0.5 to 0.6 Nm. Tightening the terminals to this factory metric establishes a gas-tight electrical contact that resists wire backing-out, maintaining loop stability through constant 15 G physical operating shocks on heavy shaker and compressor decks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use the trunk output port to daisy-chain multiple 1788-FBJB6 junction boxes together?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 1788-FBJB6 provides a dedicated trunk output port rated up to 0.48 Amps. You can route the primary Fieldbus cable into the trunk input and run an extension out of the trunk output to power a downstream junction box, provided total network loop calculations stay within the 480 mA electrical ceiling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this Fieldbus device a surplus asset or an authentic factory-new component?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe guarantee this product is 100% brand new, authentic, and completely unused original factory stock. It arrives inside its native manufacturer packaging with unblemished circuit terminals, untouched industrial housing surfaces, and matching tracking barcodes completely intact.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this IP20 junction box require an external enclosure for outdoor processing areas?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The native IP20 rating provides finger-safe internal contact protection but does not seal out rain, airborne salts, or corrosive chemical fumes. For outdoor environments or washdown areas, always mount the 1788-FBJB6 inside a properly rated NEMA 4X or IP66 weatherproof field enclosure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53478763528376,"sku":"1788-FBJB6","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1788-FBJB61.jpg?v=1779098831","url":"https:\/\/www.globalpetroparts.com\/products\/allen-bradley-1788-fbjb6-1788-linking-devices-6-way-foundation-fieldbus-junction-box","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}