{"product_id":"af-533-03-af53303-yokogawa-plc-dcs-alarming-fuse-modules","title":"AF-533-03 AF53303 Yokogawa PLC\/DCS Alarming Fuse Modules","description":"\u003ch2\u003eYokogawa AF-533-03 Alarming Fuse Modules\u003c\/h2\u003e\n\u003cp\u003eConfigured for multi-channel circuit protection in Yokogawa control environments, the \u003cstrong\u003eYokogawa AF-533-03\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eAF53303\u003c\/strong\u003e Alarming Fuse Module, operates as a dedicated hardware component for fast-acting fuse protection and status monitoring within PLC and DCS power distribution assemblies. The board processes 6 independent 24 VDC circuits to interrupt overcurrent conditions and output immediate alarm state signals.\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\u003eAF-533-03 (AF53303)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.24 lbs (0.11 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e160 mm x 100 mm x 15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e8 mA idle, 25 mA all fuses blown\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e6 independent fused channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal (150 VDC maximum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Rating\u003c\/td\u003e\n\u003ctd\u003e2 A standard fast-acting (5 x 20 mm glass)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Current\u003c\/td\u003e\n\u003ctd\u003e5 A DC maximum per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePropagation Delay\u003c\/td\u003e\n\u003ctd\u003e70 ms (fuse rupture to contact output)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlarm Outputs\u003c\/td\u003e\n\u003ctd\u003eSPDT relay contact (60 VDC \/ 48 VAC, 0.5 A) + solid-state current sink\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Isolation\u003c\/td\u003e\n\u003ctd\u003e0.5 kV between fuse circuits and contact output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus Indication\u003c\/td\u003e\n\u003ctd\u003e6 yellow channel LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003eDIN 41612 Bauform F, 48-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control \u0026amp; Channel Isolation Profiles\u003c\/h3\u003e\n\u003cp\u003eThe alarming fuse module isolates field power distribution branch lines from primary supply buses to protect control system I\/O loops against sustained overcurrent faults. Each channel incorporates a 0.5 kV galvanic isolation barrier between field-side fuse loops and internal alarm signaling circuits. Upon fuse rupture, local yellow LED indicators illuminate while a solid-state current sink and SPDT relay switch contacts change state within 70 ms, transferring hardware fault alerts across 4-20 mA HART loop protocol power feeds or central alarm panels without disrupting adjacent power channels.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the AF-533-03 notify the DCS when a channel fuse ruptures?\u003c\/p\u003e\n\u003cp\u003eA: The board features a 70 ms internal detection circuit that triggers both an SPDT relay contact (60 VDC \/ 48 VAC, 0.5 A) and a 24 VDC solid-state current sink to immediately transmit alarm status to system monitoring inputs.\u003c\/p\u003e\n\u003cp\u003eQ: Can higher current fuses be installed in the module channels?\u003c\/p\u003e\n\u003cp\u003eA: The module accepts standard 5 x 20 mm glass fuses up to a maximum continuous rating of 5 A DC per channel, provided total board power dissipation remains within thermal design limits.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eFirst, align the single Euro format card edge with the subrack guide rails and insert the board firmly into the DIN 41612 48-pin backplane receptacle until fully seated.\u003c\/p\u003e\n\u003cp\u003eNext, verify field branch wiring using properly rated conductors. Ensure that high-power distribution lines and signal conductors are separated in cabinet wire ducts by at least 200 mm to suppress inductive noise coupling. Connect field supply return lines to a single cabinet ground point on the main earthing bar to prevent ground potential loops.\u003c\/p\u003e\n\u003cp\u003eFinally, confirm all channel fuses are seated securely in their holders before energizing the 24 VDC supply, and ensure top and bottom rack clearances remain unobstructed to facilitate natural convective thermal dissipation.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43873345241178,"sku":"AF533-03","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/860..jpg?v=1787196719","url":"https:\/\/www.spareoil.com\/products\/af-533-03-af53303-yokogawa-plc-dcs-alarming-fuse-modules","provider":"SpareOil Automation","version":"1.0","type":"link"}