{"product_id":"af533-03-yokogawa-af-533-03-6-channel-alarming-fuse-module","title":"AF533-03 | Yokogawa AF-533-03 | 6-Channel Alarming Fuse Module","description":"\u003ch3\u003e\n\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAF533-03\u003c\/strong\u003e is a multi-channel fuse supervision module developed by Yokogawa Electric Corporation for use in PLC racks and industrial control panels. It combines individual circuit protection with centralized alarm signaling, enabling maintenance personnel to immediately identify blown fuses through visual LED status indicators and remote alarm outputs.\u003c\/p\u003e\n\u003cp\u003eDesigned for continuous operation in harsh environments, this module supports fast-acting DC fuse protection while maintaining electrical isolation between channels to improve system safety and fault containment.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eKey Functional Characteristics\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAF533-03\u003c\/strong\u003e integrates six independently fused power channels within a compact enclosure. Each channel includes a front-accessible fuse holder and a dedicated LED that activates upon fuse interruption. A shared alarm interface allows the module to report fault conditions to higher-level control or monitoring systems.\u003c\/p\u003e\n\u003cp\u003eThe internal detection circuit uses an oscillator-driven transformer principle to sense loss of current through a fuse, ensuring reliable annunciation without direct load interference.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\nModel: \u003cstrong\u003eAF533-03\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\nManufacturer: Yokogawa Electric Corporation\n\u003c\/li\u003e\n\u003cli\u003e\nModule Type: DC Alarming Fuse Module\n\u003c\/li\u003e\n\u003cli\u003e\nNumber of Channels: 6 isolated fuse channels\n\u003c\/li\u003e\n\u003cli\u003e\nNominal Supply Voltage: 24 VDC\n\u003c\/li\u003e\n\u003cli\u003e\nStandard Fuse Rating: 2 A fast-acting (user-replaceable)\n\u003c\/li\u003e\n\u003cli\u003e\nFuse Accessibility: Front-mounted, tool-assisted\n\u003c\/li\u003e\n\u003cli\u003e\nVisual Status Indication: 6 individual yellow LEDs\n\u003c\/li\u003e\n\u003cli\u003e\nAlarm Outputs:\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\nCommon dry contact for external annunciation\n\u003c\/li\u003e\n\u003cli\u003e\nCommon DC current sink output for PLC\/DCS input\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\nElectrical Isolation: Channel-to-channel galvanic isolation\n\u003c\/li\u003e\n\u003cli\u003e\nOperating Temperature Range: -25 °C to +85 °C\n\u003c\/li\u003e\n\u003cli\u003e\nMounting: Control cabinet or system rack installation\n\u003c\/li\u003e\n\u003cli\u003e\nDimensions: 1.3 cm × 12.7 cm × 17.8 cm\n\u003c\/li\u003e\n\u003cli\u003e\nWeight: 0.1 kg\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cstrong\u003eDesign and Reliability Considerations\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eYokogawa designed the \u003cstrong\u003eAF533-03\u003c\/strong\u003e for long service life in mission-critical control systems. The module minimizes downtime by allowing rapid fault localization without removing wiring or disconnecting adjacent circuits. Galvanic isolation reduces the risk of cascading failures, making it suitable for high-availability applications.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eTypical Application Scenarios\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAF533-03\u003c\/strong\u003e is commonly installed in:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\nPLC and DCS control cabinets\n\u003c\/li\u003e\n\u003cli\u003e\nPower distribution sections of automation systems\n\u003c\/li\u003e\n\u003cli\u003e\nProcess control panels in power generation facilities\n\u003c\/li\u003e\n\u003cli\u003e\nOil, gas, and chemical processing plants\n\u003c\/li\u003e\n\u003cli\u003e\nIndustrial systems requiring centralized fuse status feedback\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can different fuse ratings be used per channel?\u003c\/strong\u003e\r\nYes. While the module is supplied with 2 A fast-acting fuses as standard, users may install alternative fuse ratings in accordance with system design documentation and electrical limits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does a blown fuse interrupt other channels?\u003c\/strong\u003e\r\nNo. Each channel is electrically isolated and operates independently, ensuring that a fault on one circuit does not affect adjacent channels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the alarm output be connected directly to a PLC input?\u003c\/strong\u003e\r\nYes. The DC current sink output and common contact are designed for seamless integration with PLC or DCS digital input modules.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52762007568669,"sku":"AF533-03","price":9.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/5387\/3181\/files\/AF533-03-2_1000.jpg?v=1787222034","url":"https:\/\/www.6gcontrols.com\/products\/af533-03-yokogawa-af-533-03-6-channel-alarming-fuse-module","provider":"6G Controls","version":"1.0","type":"link"}