{"product_id":"siemens-m3040b1200-200-amp-30-space-120-240v-panel-door-w-main-37-1-8-x-15-1-2-copy","title":"Siemens M3040B1200 200 Amp 30 Space 120\/240 VAC Load Center Guts Only 10\" X 20\"","description":"\u003cp\u003eSiemens M3040B1200 200 Amp Load Center interior assembly designed for 120\/240 VAC applications. This guts-only unit features 30 circuit spaces and measures 10\" x 20\", making it ideal for retrofit installations or replacements where the existing enclosure remains in service. Built to Siemens standards for reliable electrical distribution. Perfect for residential or light commercial panel upgrades requiring a compact, high-capacity solution without a new cabinet.\u003c\/p\u003e\n\u003cul style=\"margin-top: 0in;\" type=\"disc\"\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eBrand: Siemens\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eModel #: M3040B1200 \u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eLoad Center Guts Only\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eAmps: 200 Amp \u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eSpaces: 30 Space \u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eComes with 5 Tandem Breaker Posts\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eVolts: 120\/240V\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eMeasurements: 10\" W X 20\" T\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Siemens","offers":[{"title":"Used","offer_id":47406284636418,"sku":"02252605J","price":59.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0142\/4909\/9322\/files\/PhotoFeb252026_20155PM.jpg?v=1772046562","url":"https:\/\/www.sselectricalsupply.com\/products\/siemens-m3040b1200-200-amp-30-space-120-240v-panel-door-w-main-37-1-8-x-15-1-2-copy","provider":"S\u0026S Electrical Supply","version":"1.0","type":"link"}