{"product_id":"a4by300-55ak-mersen-300-amp-600-volt-class-l-time-delay-fuse-bolt-on","title":"A4BY300-55AK - Mersen 300 Amp 600 Volt Class L Time-Delay Fuse Bolt-On","description":" \t\t\t\t\t\t\t\t\t\t\u003ch2\u003eA4BY300-55AK\u003c\/h2\u003e                                         \u003cbr\u003e \t\t\t\t\t\t\t\t\t\t\u003cb\u003eA4BY300-55AK\u003c\/b\u003e is a Mersen Class L time-delay fuse rated for 300 amps and 600 volts AC with bolt-on mounting.\u003cp\u003eThis fuse features a 4-second time delay and current-limiting design, suitable for protecting mains, feeders, circuit breakers, and large motors. It has a glass melamine body with plated terminals for durability in harsh environments. The fuse is UL listed and CSA certified, with an interrupting rating of 200,000 AIC at 600 VAC and 100,000 AIC at 300 VDC. Its unique dimensions prevent replacement by other fuse classes, ensuring proper application and safety.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFuse Type: Class L, Time-Delay\u003c\/li\u003e\n\u003cli\u003eAmperage Rating: 300 Amp\u003c\/li\u003e\n\u003cli\u003eVoltage Rating: 600 VAC, 300 VDC\u003c\/li\u003e\n\u003cli\u003eInterrupting Rating: 200,000 AIC @ 600 VAC, 100,000 AIC @ 300 VDC\u003c\/li\u003e\n\u003cli\u003eMounting Type: Bolt-On\u003c\/li\u003e\n\u003cli\u003eBody Material: Glass Melamine\u003c\/li\u003e\n\u003cli\u003eTerminal Material: Plated Terminals\u003c\/li\u003e\n\u003cli\u003eDimensions: 2\" x 8-5\/8\"\u003c\/li\u003e\n\u003cli\u003eCertifications: UL Listed, CSA Certified\u003c\/li\u003e\n\u003cli\u003eSeries: A4BY\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAt \u003cb\u003eEssential Parts\u003c\/b\u003e, we offer \u003cb\u003efast shipping\u003c\/b\u003e, \u003cb\u003elowest price\u003c\/b\u003e, and \u003cb\u003eexpert support\u003c\/b\u003e to help you get the right product every time.\u003c\/p\u003e \t\t\t\t\t\t\t\t\t\t\u003cbr\u003e                                          \t\t\t\t\t\t\t\t\t\t\u003ch3\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/h3\u003e \t\t\t\t\t\t\t\t\t\t\u003cul\u003e \t\t\t\t\t\t\t\t\t\t\t\u003cli\u003ePart Number: A4BY300-55AK\u003c\/li\u003e                                             \u003cli\u003eManufacturer : Mersen\u003c\/li\u003e\n\u003cli\u003eBrand : Ferraz Shawmut\u003c\/li\u003e\n\u003cli\u003eCategory : Fuse\u003c\/li\u003e\n\u003cli\u003eItem Subcategory : Fuse Part\u003c\/li\u003e\n\u003cli\u003eFamily : Amp-Trap\u003c\/li\u003e\n\u003cli\u003eType : A4BY\u003c\/li\u003e\n\u003cli\u003eVoltage : 600\u003c\/li\u003e\n\u003cli\u003eAmperage : 300\u003c\/li\u003e\n\u003cli\u003eConnection : Bolt-In\u003c\/li\u003e \t\t\t\t\t\t\t\t\t\t\u003c\/ul\u003e                                         \u003cbr\u003e                                         \u003ch3\u003e\u003cb\u003eProduct Data\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eWeight : 5 \u003c\/li\u003e\u003c\/ul\u003e                                         \u003cbr\u003e                                          ","brand":"Ferraz Shawmut","offers":[{"title":"New","offer_id":45031025049759,"sku":"A4BY300-55AK-New","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Re-Certified","offer_id":45031222018207,"sku":"A4BY300-55AK-ReCert","price":639.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0500\/2349\/7887\/files\/A4BY300.png?v=1757706618","url":"https:\/\/essentialparts.com\/products\/a4by300-55ak-mersen-300-amp-600-volt-class-l-time-delay-fuse-bolt-on","provider":"Essential Electric Supply","version":"1.0","type":"link"}