{"product_id":"honeywell-05701-a-0516-system-57-8-way-sub-rack","title":"Honeywell 05701-A-0516 System 57 8-Way Sub-rack","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eServing as the structural and electrical backbone for industrial gas detection networks, the \u003cstrong\u003eHoneywell 05701-A-0516\u003c\/strong\u003e accommodates up to eight System 57 control cards in a secure, rack-mountable chassis. This sub-rack houses the passive backplane interface, enabling direct point-to-point connections between external field sensors, power distribution systems, and dedicated control modules. Engineered for high-density environments, its robust structural design ensures long-term physical integrity and reliable electrical contact pins, minimizing signal degradation under typical industrial vibration and thermal cycling conditions.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003e8-Channel Card Capacity:\u003c\/strong\u003e Dedicated slots support up to eight System 57 gas or flame control cards in a space-saving configuration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated Backplane Routing:\u003c\/strong\u003e Hardwired backplane paths eliminate the need for complex internal wiring harnesses, reducing potential points of failure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Construction:\u003c\/strong\u003e Zinc-plated steel and anodized aluminum components shield installed cards from physical damage and ambient electromagnetic interference.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModular Serviceability:\u003c\/strong\u003e Allows for rapid hot-swapping or physical replacement of individual control cards without disturbing adjacent channel wiring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003eMulti-channel toxic and combustible gas monitoring enclosures.\u003c\/li\u003e\n  \u003cli\u003ePetrochemical processing sites and refinery control rooms.\u003c\/li\u003e\n  \u003cli\u003eOffshore oil and gas platforms requiring compact instrument panels.\u003c\/li\u003e\n  \u003cli\u003eWastewater treatment facility gas detection systems.\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; text-align: left;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003cth style=\"padding: 0.75rem 0.5rem; font-weight: 600;\"\u003eManufacturer\u003c\/th\u003e\n        \u003ctd style=\"padding: 0.75rem 0.5rem;\"\u003eHoneywell\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003cth style=\"padding: 0.75rem 0.5rem; font-weight: 600;\"\u003eModel Number\u003c\/th\u003e\n        \u003ctd style=\"padding: 0.75rem 0.5rem;\"\u003e05701-A-0516\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003cth style=\"padding: 0.75rem 0.5rem; font-weight: 600;\"\u003eSystem Series\u003c\/th\u003e\n        \u003ctd style=\"padding: 0.75rem 0.5rem;\"\u003eSystem 57\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003cth style=\"padding: 0.75rem 0.5rem; font-weight: 600;\"\u003eModule Capacity\u003c\/th\u003e\n        \u003ctd style=\"padding: 0.75rem 0.5rem;\"\u003e8 control card slots\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003cth style=\"padding: 0.75rem 0.5rem; font-weight: 600;\"\u003eMounting Profile\u003c\/th\u003e\n        \u003ctd style=\"padding: 0.75rem 0.5rem;\"\u003e3U height, half-width profile\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003cth style=\"padding: 0.75rem 0.5rem; font-weight: 600;\"\u003eOperating Temperature\u003c\/th\u003e\n        \u003ctd style=\"padding: 0.75rem 0.5rem;\"\u003e-10 to +50 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003cth style=\"padding: 0.75rem 0.5rem; font-weight: 600;\"\u003eStorage Temperature\u003c\/th\u003e\n        \u003ctd style=\"padding: 0.75rem 0.5rem;\"\u003e-25 to +55 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003cth style=\"padding: 0.75rem 0.5rem; font-weight: 600;\"\u003eHumidity Limits\u003c\/th\u003e\n        \u003ctd style=\"padding: 0.75rem 0.5rem;\"\u003e0 to 90% RH, non-condensing\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003cth style=\"padding: 0.75rem 0.5rem; font-weight: 600;\"\u003eShipping Weight (Calculated)\u003c\/th\u003e\n        \u003ctd style=\"padding: 0.75rem 0.5rem;\"\u003e2.0 kg\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; text-align: left;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 0.75rem 0.5rem; font-weight: bold;\"\u003eConnection Group\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem 0.5rem; 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: 0.75rem 0.5rem; font-weight: 600;\"\u003eDC Power Input\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem 0.5rem;\"\u003eDual terminal blocks for primary and secondary redundant DC supply lines.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem 0.5rem; font-weight: 600;\"\u003eIndividual Card Backplane\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem 0.5rem;\"\u003eDedicated multi-pin connectors for matching 5701 control card edge interfaces.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem 0.5rem; font-weight: 600;\"\u003eEarth Ground Stud\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem 0.5rem;\"\u003eHeavy-duty M5 grounding post for panel and cable shield drain wire termination.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe 05701-A-0516 is a half-width 8-way sub-rack, offering a highly compact alternative to the full-width 16-way 05701-A-0502 sub-rack. Ensure that mechanical keying pins on the passive backplane are configured correctly prior to card insertion, as inserting a card into a slot keyed for a different sensor type can damage the internal backplane traces.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen configuring a fully populated 8-way sub-rack, calculate the combined maximum current draw of all cards under alarm states (when relay coils are energized and sensor currents peak) to size the external power supply properly. Do not block natural convective airflow; provide at least 50mm of clear space above and below the chassis in enclosed cabinets to prevent thermal accumulation.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eEnsure the sub-rack chassis ground stud is bonded directly to the main instrument clean earth bar with low-impedance copper conductors. For analogue sensor wiring, run shielded twisted-pair cables and terminate the shields only at the sub-rack end to prevent disruptive ground loops.\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  \u003cp style=\"font-weight: bold; color: #9b2c2c; margin: 0 0 0.5rem 0;\"\u003eCRITICAL SAFETY WARNING\u003c\/p\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003eIsolate and lock out all power sources before mounting or wiring the sub-rack. Do not insert or remove control cards while the backplane is energized. Failure to comply can cause electrical arcing, damage sensitive solid-state components, and trigger accidental system alarms.\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; margin-right: 0.75rem; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eMount the sub-rack securely in a standard 19-inch cabinet panel or bracket layout using M6 hardware.\u003c\/div\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; margin-right: 0.75rem; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eConnect a dedicated low-impedance ground cable from the sub-rack earth stud to the system's clean earth bar.\u003c\/div\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; margin-right: 0.75rem; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eWire the DC supply sources to the backplane power terminals, checking line polarities before applying voltage.\u003c\/div\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; margin-right: 0.75rem; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eInstall the cards into their designated card guides, ensuring clean engagement with the backplane connectors.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52705316110699,"sku":"05701-A-0516","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/05701-A-0516-vcyy25ovmxw_428301dc-f3a1-430c-954d-1f98ac8205ed.jpg?v=1766639643","url":"https:\/\/www.plcprotech.com\/pt\/products\/honeywell-05701-a-0516-system-57-8-way-sub-rack","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}