{"product_id":"marathon-fds30j3-fused-disconnect-switch","title":"FDS30J3 Marathon Special Products Fused Disconnect Switch, 3-pole 30 A 600 V AC, Class J","description":"\u003cp\u003eThe Marathon Special Products FDS30J3 is a 3-pole fused disconnect switch for Class J fuses, rated 30 A at 600 V AC, with a 200 kA short circuit rating. The fuse carrier pulls out, so the fuse chamber is isolated while you change fuses or work downstream. Applied Control is the Marathon Special Products manufacturers' representative. Send the catalog number and quantity, and we send back a quote.\u003c\/p\u003e\u003cp style=\"margin:18px 0;\"\u003e\u003ca href=\"\/pages\/request-a-quote?part=FDS30J3\" style=\"display:inline-block;background:#1F3864;color:#fff!important;padding:11px 20px;text-decoration:none;font-weight:700;border-radius:4px;margin:0 8px 8px 0;\"\u003eRequest a Quote\u003c\/a\u003e\u003ca href=\"https:\/\/calendly.com\/christian-lauderback\/30min\" target=\"_blank\" rel=\"noopener\" style=\"display:inline-block;background:#fff;color:#1F3864!important;border:2px solid #1F3864;padding:9px 18px;text-decoration:none;font-weight:700;border-radius:4px;\"\u003eBook 30 Minutes to Review the Application\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFDS30J3 specifications\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:.95em;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;font-weight:700;width:38%;\"\u003eCatalog number\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003eFDS30J3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;font-weight:700;width:38%;\"\u003eManufacturer\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003eMarathon Special Products (Regal Rexnord)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;font-weight:700;width:38%;\"\u003eSeries\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003eFDS fused disconnect switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;font-weight:700;width:38%;\"\u003ePoles\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;font-weight:700;width:38%;\"\u003eAmpere rating\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003e30 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;font-weight:700;width:38%;\"\u003eVoltage rating\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003e600 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;font-weight:700;width:38%;\"\u003eFuse class\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003eClass J\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;font-weight:700;width:38%;\"\u003eShort circuit rating\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003e200 kA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;font-weight:700;width:38%;\"\u003eWire type\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003e75°C copper wire or higher (CU75)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;font-weight:700;width:38%;\"\u003eFuse carrier\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003eExtractable. The switch will not operate without the carrier in place\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;font-weight:700;width:38%;\"\u003eLockout\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003eAccepts common lockout devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;font-weight:700;width:38%;\"\u003eTouch protection\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003eIP20 (IEC 60529)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;font-weight:700;width:38%;\"\u003eListing\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003eUL 98 Listed, cULus, CSA C22.2 No. 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;font-weight:700;width:38%;\"\u003eTypical uses\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003eIndustrial controls, transformer protection, UL 67 panelboards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;font-weight:700;width:38%;\"\u003eHot handle\u003c\/td\u003e\n\u003ctd style=\"padding:7px 10px;border:1px solid #ddd;\"\u003eFDS-HH-KIT standalone hot handle kit (for switches built after 25 Sep 2026; confirm with us)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cp\u003e\u003csmall\u003eSpecifications from the Marathon Special Products fused disconnect switch catalog page (marathonsp.com). Confirm against the current datasheet before installation.\u003c\/small\u003e\u003c\/p\u003e\u003ch2\u003ePicking an FDS switch\u003c\/h2\u003e\u003cp\u003eStart with the fuse class. Class CC fits the 30 A switches. Class J comes in 30 A and 60 A. Then pick the pole count. 1-pole switches carry 347 V AC or 125 V DC. 2 and 3-pole switches carry 600 V AC. Send the load amps and voltage and we will match the switch and the fuse.\u003c\/p\u003e\u003cp\u003eSee the \u003ca href=\"\/pages\/msp-class-j-fused-disconnect-switches\"\u003eMSP Class J fused disconnect page\u003c\/a\u003e, the \u003ca href=\"\/collections\/marathon-special-products\"\u003eMarathon collection\u003c\/a\u003e or the \u003ca href=\"\/pages\/cross-reference\"\u003ecross reference hub\u003c\/a\u003e for Bussmann to Marathon fuse crosses.\u003c\/p\u003e\u003cp style=\"margin:18px 0;\"\u003e\u003ca href=\"\/pages\/request-a-quote?part=FDS30J3\" style=\"display:inline-block;background:#1F3864;color:#fff!important;padding:11px 20px;text-decoration:none;font-weight:700;border-radius:4px;margin:0 8px 8px 0;\"\u003eRequest a Quote\u003c\/a\u003e\u003ca href=\"https:\/\/calendly.com\/christian-lauderback\/30min\" target=\"_blank\" rel=\"noopener\" style=\"display:inline-block;background:#fff;color:#1F3864!important;border:2px solid #1F3864;padding:9px 18px;text-decoration:none;font-weight:700;border-radius:4px;\"\u003eBook 30 Minutes to Review the Application\u003c\/a\u003e\u003c\/p\u003e","brand":"Marathon Special Products","offers":[{"title":"Default Title","offer_id":67528617722146,"sku":"FDS30J3","price":0.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aci-automation.com\/products\/marathon-fds30j3-fused-disconnect-switch","provider":"Applied Control","version":"1.0","type":"link"}