{"product_id":"ferraz-shawmut-c300198-a070ud32ki550-fuses","title":"Mersen Protistor C300198 (A070UD32KI550) — Protistor® Size 32 aR Semiconductor Fuse, 550 A, 690 VAC (IEC) \/ 700 VAC (UL), Bolted Slotted‑Blade Terminals, Striker Indication — Pack of 3","description":"\u003cp\u003eThe Mersen Protistor C300198 (catalog A070UD32KI550) is a square‑body, ultra‑fast acting aR semiconductor fuse‑link, size 32, engineered for high‑performance protection of power semiconductors (diodes, thyristors, IGBT). Rated for 550 A and 690 VAC (IEC) \/ 700 VAC (UL), this bolted, slotted‑blade terminal version includes a striker indication system and delivers high interrupting capacity with controlled I²t characteristics for optimized equipment protection.\u003c\/p\u003e\n\u003cp\u003eKey specifications\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: Mersen (Protistor® series)\u003c\/li\u003e\n\u003cli\u003eCatalog number \/ Item number: A070UD32KI550 \/ C300198\u003c\/li\u003e\n\u003cli\u003eSeries: Protistor® — Size 32 (aR characteristic)\u003c\/li\u003e\n\u003cli\u003eAmpere rating: 550 A\u003c\/li\u003e\n\u003cli\u003eVoltage rating: 690 V AC (IEC) \/ 700 V AC (UL)\u003c\/li\u003e\n\u003cli\u003eUtilization category \/ characteristic: aR (ultra‑fast acting for semiconductor protection)\u003c\/li\u003e\n\u003cli\u003eFuse size: 32\u003c\/li\u003e\n\u003cli\u003eMounting: Bolted (slotted blade connection)\u003c\/li\u003e\n\u003cli\u003eConnection \/ terminal type \u0026amp; material: Slotted blades, silver‑plated copper\u003c\/li\u003e\n\u003cli\u003eBody \/ insulating material: Ceramic (square body)\u003c\/li\u003e\n\u003cli\u003eIndication system: Yes — striker (low‑voltage trip indicator compatible with microswitch)\u003c\/li\u003e\n\u003cli\u003eClearing I²t at rated voltage: 215 kA²·s\u003c\/li\u003e\n\u003cli\u003eMelting I²t: 37 kA²·s\u003c\/li\u003e\n\u003cli\u003eMaximum AC interrupting rating (I1): 200 kA\u003c\/li\u003e\n\u003cli\u003ePower dissipation at rated current: 95 W\u003c\/li\u003e\n\u003cli\u003eDimensions: 134 mm (length) × 59 mm (width) × 65 mm (height)\u003c\/li\u003e\n\u003cli\u003eWeight (per unit): 0.5523 kg; Sell pack: 3 EA, pack weight 1.6569 kg\u003c\/li\u003e\n\u003cli\u003eCompliance: RoHS compliant\u003c\/li\u003e\n\u003cli\u003eApplication: Semiconductor protection in power converters, inverters, UPS, motor drives and other high‑power electronic systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFeatures \u0026amp; benefits\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVery low I²t and controlled arcing (die‑cut elements embedded in solidified sand) reduce thermal and surge stress on semiconductors during fault interruption.\u003c\/li\u003e\n\u003cli\u003eHigh interrupting capacity (200 kA) for demanding industrial installations.\u003c\/li\u003e\n\u003cli\u003eStriker indication provides clear blown‑fuse signalling and enables field‑mountable microswitch integration for remote indication.\u003c\/li\u003e\n\u003cli\u003eSilver‑plated contact surfaces and non‑magnetic hardware ensure reliable low‑resistance connections and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eCeramic square‑body design for thermal stability and robust mechanical performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eApplications\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProtection of power semiconductor assemblies: diode\/thyristor stacks, IGBT modules, rectifiers and DC\/AC converters.\u003c\/li\u003e\n\u003cli\u003eIndustrial power electronics, renewable energy inverters, traction, UPS and large motor drives.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInstallation \u0026amp; handling notes\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplace only with identical Protistor® size 32 aR fuse‑links to maintain proper protective characteristics and coordination.\u003c\/li\u003e\n\u003cli\u003eEnsure bolted mounting torque and terminal connections per Mersen installation instructions.\u003c\/li\u003e\n\u003cli\u003eVerify coordination with upstream protection and equipment short‑circuit ratings.\u003c\/li\u003e\n\u003cli\u003eUse striker\/microswitch wiring per the manufacturer’s diagram for reliable indication.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDocumentation \u0026amp; support\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRefer to Mersen Protistor technical datasheets for detailed time‑current curves, dimensional drawings, mounting instructions and coordination examples.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv id=\"whale-data-ext\" data-event=\"v2\" data-version=\"2.2.5\"\u003e\u003c\/div\u003e","brand":"Ferraz Shawmut","offers":[{"title":"Default Title","offer_id":47416722391319,"sku":"A070UD32KI550","price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/9210\/1655\/files\/ferraz-shawmut-general-industrial-fuses-mersen-protistor-c300198-a070ud32ki550-protistor-size-32-ar-semiconductor-fuse-550-a-690-vac-iec-700-vac-ul-bolted-slotted-blade-terminals-striker-indication-pack-of-3-1212531878.jpg?v=1766705617","url":"https:\/\/www.apexonsupply.com\/products\/ferraz-shawmut-c300198-a070ud32ki550-fuses","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}