{"product_id":"mm-lug-4s-6c-125a-4j-oh-ug-rg","title":"MM LUG 4S\/6C 125A 4J OH\/UG RG","description":"\u003cp data-start=\"0\" data-end=\"55\"\u003e\u003cstrong data-start=\"0\" data-end=\"55\"\u003eMM LUG 4S\/6C 125A 4J OH\/UG RG – Product Description\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1idzntm\" data-start=\"57\" data-end=\"74\"\u003e🔌 What it is\u003c\/h3\u003e\n\u003cp data-start=\"75\" data-end=\"257\"\u003eA \u003cstrong data-start=\"77\" data-end=\"140\"\u003emain lug \/ meter-main style electrical termination assembly\u003c\/strong\u003e used to connect and distribute service power (typically between utility service conductors and a panel or subpanel).\u003c\/p\u003e\n\u003chr data-start=\"259\" data-end=\"262\"\u003e\n\u003ch3 data-section-id=\"9f6580\" data-start=\"264\" data-end=\"295\"\u003e🧾 What the shorthand means\u003c\/h3\u003e\n\u003cul data-start=\"296\" data-end=\"786\"\u003e\n\u003cli data-section-id=\"d44bpk\" data-start=\"296\" data-end=\"367\"\u003e\n\u003cstrong data-start=\"298\" data-end=\"308\"\u003eMM LUG\u003c\/strong\u003e → Main Lug (no main breaker; incoming power lands on lugs)\u003c\/li\u003e\n\u003cli data-section-id=\"1wgd5zl\" data-start=\"368\" data-end=\"501\"\u003e\n\u003cstrong data-start=\"370\" data-end=\"379\"\u003e4S\/6C\u003c\/strong\u003e →\n\u003cul data-start=\"386\" data-end=\"501\"\u003e\n\u003cli data-section-id=\"1ge83ea\" data-start=\"386\" data-end=\"440\"\u003e4 spaces (or positions depending on configuration)\u003c\/li\u003e\n\u003cli data-section-id=\"vg6p1g\" data-start=\"443\" data-end=\"501\"\u003esupports up to 6 circuits (layout-dependent designation)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1du7lf4\" data-start=\"502\" data-end=\"537\"\u003e\n\u003cstrong data-start=\"504\" data-end=\"512\"\u003e125A\u003c\/strong\u003e → 125-amp service rating\u003c\/li\u003e\n\u003cli data-section-id=\"1vfe071\" data-start=\"538\" data-end=\"619\"\u003e\n\u003cstrong data-start=\"540\" data-end=\"546\"\u003e4J\u003c\/strong\u003e → enclosure\/jaw or model series designation (manufacturer-specific code)\u003c\/li\u003e\n\u003cli data-section-id=\"1pmpjwg\" data-start=\"620\" data-end=\"672\"\u003e\n\u003cstrong data-start=\"622\" data-end=\"631\"\u003eOH\/UG\u003c\/strong\u003e → Overhead \/ Underground feed compatible\u003c\/li\u003e\n\u003cli data-section-id=\"379n6j\" data-start=\"673\" data-end=\"786\"\u003e\n\u003cstrong data-start=\"675\" data-end=\"681\"\u003eRG\u003c\/strong\u003e → Ring-style meter \/ ringed enclosure (or rain-gutter\/rated housing depending on manufacturer shorthand)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"788\" data-end=\"791\"\u003e\n\u003ch3 data-section-id=\"1xn4pf1\" data-start=\"793\" data-end=\"811\"\u003e⚡ What it does\u003c\/h3\u003e\n\u003cp data-start=\"812\" data-end=\"835\"\u003eThis type of equipment:\u003c\/p\u003e\n\u003cul data-start=\"836\" data-end=\"1088\"\u003e\n\u003cli data-section-id=\"1lvlc4j\" data-start=\"836\" data-end=\"907\"\u003eReceives \u003cstrong data-start=\"847\" data-end=\"907\"\u003eincoming utility power (overhead or underground service)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"nbdvhk\" data-start=\"908\" data-end=\"976\"\u003eProvides \u003cstrong data-start=\"919\" data-end=\"976\"\u003emain termination points (lugs) for service conductors\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1q87r3m\" data-start=\"977\" data-end=\"1031\"\u003eDistributes power onward to a panel or branch system\u003c\/li\u003e\n\u003cli data-section-id=\"rp2y2g\" data-start=\"1032\" data-end=\"1088\"\u003eActs as a \u003cstrong data-start=\"1044\" data-end=\"1088\"\u003eservice entrance or meter-main component\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1090\" data-end=\"1093\"\u003e\n\u003ch3 data-section-id=\"1a97u8\" data-start=\"1095\" data-end=\"1114\"\u003e🏠 Typical uses\u003c\/h3\u003e\n\u003cul data-start=\"1115\" data-end=\"1319\"\u003e\n\u003cli data-section-id=\"r1u1bd\" data-start=\"1115\" data-end=\"1159\"\u003eResidential \u003cstrong data-start=\"1129\" data-end=\"1159\"\u003eservice entrance equipment\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"oratiz\" data-start=\"1160\" data-end=\"1218\"\u003eSmall homes or accessory buildings with \u003cstrong data-start=\"1202\" data-end=\"1218\"\u003e125A service\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"6anrr5\" data-start=\"1219\" data-end=\"1266\"\u003eMeter-main combinations feeding a load center\u003c\/li\u003e\n\u003cli data-section-id=\"1df0yo7\" data-start=\"1267\" data-end=\"1319\"\u003eUtility-approved outdoor power distribution setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1321\" data-end=\"1324\"\u003e\n\u003ch3 data-section-id=\"1p3o9gl\" data-start=\"1326\" data-end=\"1351\"\u003e🧠 Simple explanation\u003c\/h3\u003e\n\u003cblockquote data-start=\"1352\" data-end=\"1535\"\u003e\n\u003cp data-start=\"1354\" data-end=\"1535\"\u003eThis is a \u003cstrong data-start=\"1364\" data-end=\"1535\"\u003e125-amp service connection box that accepts utility power (overhead or underground) and feeds it into a home or subpanel using main lugs instead of a built-in breaker.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr data-start=\"1537\" data-end=\"1540\"\u003e\n\u003ch3 data-section-id=\"1ioqiu6\" data-start=\"1542\" data-end=\"1561\"\u003e🔧 Key takeaway\u003c\/h3\u003e\n\u003cul data-start=\"1562\" data-end=\"1784\"\u003e\n\u003cli data-section-id=\"1cqhw34\" data-start=\"1562\" data-end=\"1631\"\u003eIt is part of the \u003cstrong data-start=\"1582\" data-end=\"1609\"\u003eservice entrance system\u003c\/strong\u003e, not a branch breaker\u003c\/li\u003e\n\u003cli data-section-id=\"sl851x\" data-start=\"1632\" data-end=\"1678\"\u003eUses \u003cstrong data-start=\"1639\" data-end=\"1678\"\u003emain lugs instead of a main breaker\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"132o4fe\" data-start=\"1679\" data-end=\"1730\"\u003eSupports \u003cstrong data-start=\"1690\" data-end=\"1730\"\u003e125A electrical service distribution\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1f53sx3\" data-start=\"1731\" data-end=\"1784\"\u003eDesigned for \u003cstrong data-start=\"1746\" data-end=\"1784\"\u003eutility meter and feed connections\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SIEMENS INDUSTRY, INC.","offers":[{"title":"Default Title","offer_id":52411466776865,"sku":"MM0406L1125ESC","price":302.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/1905\/1041\/files\/download_14_83b7d979-84e4-4e85-8ef4-fa9170cb6108.jpg?v=1777575527","url":"https:\/\/standardvmi.com\/products\/mm-lug-4s-6c-125a-4j-oh-ug-rg","provider":"Standard Plumbing Supply","version":"1.0","type":"link"}