{"product_id":"honeywell-hc900-900r04-0200-hc900-series-4-slot-i-o-rack","title":"Honeywell HC900-900R04-0200 HC900 Series 4-Slot I\/O Rack","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eEngineered for seamless integration into distributed process control architectures, the \u003cstrong\u003eHoneywell HC900-900R04-0200\u003c\/strong\u003e serves as a rugged 4-slot I\/O rack within the Honeywell HC900 Hybrid Controller system. This chassis provides the vital physical and electrical backplane interface, enabling high-speed communication between Honeywell input\/output modules and the central processing unit. Designed for reliable signal routing and structural stability, this module-mounting rack is built to handle the rigorous demands of process and safety-critical environments.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eCompact 4-slot backplane layout designed for space-constrained installations or remote expansion nodes.\u003c\/li\u003e\n  \u003cli\u003eRobust mechanical construction to shield internal communication buses from environmental hazards.\u003c\/li\u003e\n  \u003cli\u003eHigh-speed internal bus design ensures reliable, real-time data synchronization with host processors.\u003c\/li\u003e\n  \u003cli\u003eSimple DIN-rail or direct panel mounting options for flexible control cabinet configuration.\u003c\/li\u003e\n  \u003cli\u003eSeamless compatibility with standard Honeywell digital, analog, and specialty safety I\/O modules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eThermal processing, industrial oven, and furnace control integration.\u003c\/li\u003e\n  \u003cli\u003eWater and wastewater municipal treatment plant automation.\u003c\/li\u003e\n  \u003cli\u003eChemical, petrochemical, and refining auxiliary process systems.\u003c\/li\u003e\n  \u003cli\u003eBoiler, steam-turbine, and localized combustion management configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eValue \/ Specification\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eHoneywell\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eModel\/Article Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eHC900-900R04-0200\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eSeries Compatibility\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eHC900 Hybrid Controller System\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eI\/O Slot Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e4 Slots\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eMounting Options\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003ePanel Mount or Standard DIN Rail\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOperating Temperature Limit\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0 to 60 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eStorage Temperature Limit\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e-40 to 85 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eRelative Humidity\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e10% to 90% RH (non-condensing)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e4.0 kg (8.82 lbs)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e31.0 cm x 18.0 cm x 20.0 cm\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eConnector \/ Interface\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eFunction \/ Circuit Assignment\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eModule Slots 1 through 4\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eProprietary internal parallel bus for Honeywell HC900 series I\/O modules\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePower Input Slot\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eDedicated connector interface for 900P01 \/ 900P02 power supply modules\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eChassis Grounding Bolt\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLow-impedance earth ground connection for protective shielding and noise reduction\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe HC900-900R04-0200 backplane chassis is directly compatible with standard HC900 controllers including C30, C50, and C70 CPUs. When planning a migration or upgrade from older 900R04 legacy hardware configurations, ensure that any existing 900P01\/900P02 power supplies and input\/output module physical profiles align correctly. Some high-density analog modules may require a system firmware review on the host controller to guarantee full diagnostic visibility across the backplane.\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eTo prevent thermal accumulation when populating high-power analog input or output modules within all four slots, a minimum convective clearance of 50mm (2 inches) must be left unobstructed above and below the rack chassis inside the control enclosure. Operating the backplane close to its maximum temperature of 60 degC without adequate ventilation can lead to localized heat buildup, reducing the operational lifespan of the installed power supplies and active field-wire modules.\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1.5rem;\"\u003eEnsure the physical metal chassis is bonded directly to the main cabinet subpanel using a heavy-gauge, low-impedance ground strap. While many HC900 system components support hot-swapping under controlled circumstances, always refer to your specific control strategy documentation before removing modules from the active backplane to prevent safety-interlock trips or bus communications interruptions.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cstrong style=\"color: #9b2c2c; display: block; margin-bottom: 0.5rem;\"\u003eCRITICAL WARNING:\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003eIsolate and lock out all external power sources before mounting, unmounting, or making connection changes to this rack assembly. Failure to completely de-energize primary and auxiliary power lines before physically installing or servicing the backplane can cause terminal arc flashes, permanent hardware damage, or severe operator injury.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 0.75rem;\"\u003e1\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 2px;\"\u003eMount the chassis onto a standard DIN rail or bolt it securely to the enclosure's metal subpanel using the integrated mounting brackets.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 0.75rem;\"\u003e2\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 2px;\"\u003eConnect a dedicated earth ground lead to the chassis ground screw, verifying that low contact resistance is achieved.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 0.75rem;\"\u003e3\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 2px;\"\u003eSlide the designated power supply module into its assigned slot and tighten its physical retention screws.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 0.75rem;\"\u003e4\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 2px;\"\u003eCarefully align and insert the desired I\/O modules into slots 1 through 4, ensuring full seat connection before securing the module retention screws.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52705601716587,"sku":"HC900-900R04-0200","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/HC900-900R04-0200-kerf2mamdxf_447b51e4-5d6b-49e3-bc8f-a555d8106cd9.jpg?v=1766651362","url":"https:\/\/www.plcprotech.com\/tr\/products\/honeywell-hc900-900r04-0200-hc900-series-4-slot-i-o-rack","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}