{"product_id":"tesla-mci-1-solar-mid-circuit-interrupter","title":"Tesla 600V Solar Mid-Circuit Interrupter - MCI-1","description":"\u003ch2 style=\"text-align: center; font-size: clamp(2.4rem, 7vw, 3.8rem); font-weight: 800; color: #0f172a; margin: 0.8rem 0 1.2rem; letter-spacing: -0.5px; line-height: 1.1;\"\u003eTESLA MCI-1 MID-CIRCUIT INTERRUPTER\u003c\/h2\u003e\n\u003cp style=\"text-align: center; font-style: italic; color: #475569; font-size: clamp(1.18rem, 4vw, 1.45rem); margin: 0 0 3rem; font-weight: 500;\"\u003eRapid Shutdown Device for Tesla Solar PV Systems\u003c\/p\u003e\n\u003ch3 style=\"font-size: clamp(1.45rem, 4.6vw, 1.85rem); font-weight: 800; color: #0f172a; margin: 2rem 0 1.2rem; padding: 0.8rem 1.4rem; background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%); border-radius: 10px; box-shadow: 0 4px 12px rgba(15,23,42,0.08); position: relative; letter-spacing: -0.3px; line-height: 1.15;\"\u003eOverview \u003cspan style=\"position: absolute; bottom: 0; left: 1.4rem; right: 1.4rem; height: 3px; background: linear-gradient(to right, #22c55e, #16a34a); border-radius: 3px;\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cdiv style=\"background: #f8fafc; border-left: 6px solid #22c55e; padding: 1.5rem 1.9rem; margin: 1.5rem 0 2.2rem; border-radius: 8px; font-size: 1.05rem; box-shadow: 0 2px 8px rgba(0,0,0,0.05);\"\u003e\n\u003cp style=\"margin: 0.9rem 0;\"\u003eThe Tesla MCI-1 Mid-Circuit Interrupter is a safety device designed for photovoltaic systems to meet rapid shutdown requirements under NEC 690.12. Installed directly within solar PV strings, the device interrupts the circuit during shutdown events to quickly reduce voltage levels across the array.\u003c\/p\u003e\n\u003cp style=\"margin: 0.9rem 0;\"\u003eWhen paired with Tesla Solar Inverters and compatible solar equipment, the MCI-1 helps create a compliant rapid shutdown system that enhances firefighter and installer safety while protecting the PV system during maintenance or emergency conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003ch3 style=\"font-size: clamp(1.45rem, 4.6vw, 1.85rem); font-weight: 800; color: #0f172a; margin: 2rem 0 1.2rem; padding: 0.8rem 1.4rem; background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%); border-radius: 10px; box-shadow: 0 4px 12px rgba(15,23,42,0.08); position: relative; letter-spacing: -0.3px; line-height: 1.15;\"\u003eKey Features \u003cspan style=\"position: absolute; bottom: 0; left: 1.4rem; right: 1.4rem; height: 3px; background: linear-gradient(to right, #22c55e, #16a34a); border-radius: 3px;\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cdiv style=\"background: #22c55e; color: white; padding: 1.3rem 1.8rem; border-radius: 10px; text-align: center; margin: 1.6rem 0 2.2rem; font-weight: 600; font-size: 1.12rem; box-shadow: 0 4px 14px rgba(34,197,94,0.3);\"\u003eEssential rapid shutdown protection device for Tesla solar installations.\u003c\/div\u003e\n\u003cul style=\"list-style: none; padding-left: 0; margin: 1.3rem 0;\"\u003e\n\u003cli style=\"margin: 1rem 0; padding-left: 2rem; position: relative; font-size: 1.05rem;\"\u003e• NEC Rapid Shutdown Compliance – Designed to meet NEC 690.12 PV rapid shutdown requirements\u003c\/li\u003e\n\u003cli style=\"margin: 1rem 0; padding-left: 2rem; position: relative; font-size: 1.05rem;\"\u003e• Tesla System Integration – Works with Tesla Solar Inverter and Powerwall systems\u003c\/li\u003e\n\u003cli style=\"margin: 1rem 0; padding-left: 2rem; position: relative; font-size: 1.05rem;\"\u003e• Inline PV Installation – Installs directly within solar module strings\u003c\/li\u003e\n\u003cli style=\"margin: 1rem 0; padding-left: 2rem; position: relative; font-size: 1.05rem;\"\u003e• High Durability – NEMA 4X \/ IP65 rated enclosure for outdoor installations\u003c\/li\u003e\n\u003cli style=\"margin: 1rem 0; padding-left: 2rem; position: relative; font-size: 1.05rem;\"\u003e• Long Lifespan – Designed for long-term reliability with a 25-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eApplications\u003c\/h4\u003e\n\u003ch3 style=\"font-size: clamp(1.45rem, 4.6vw, 1.85rem); font-weight: 800; color: #0f172a; margin: 2rem 0 1.2rem; padding: 0.8rem 1.4rem; background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%); border-radius: 10px; box-shadow: 0 4px 12px rgba(15,23,42,0.08); position: relative; letter-spacing: -0.3px; line-height: 1.15;\"\u003eApplications \u003cspan style=\"position: absolute; bottom: 0; left: 1.4rem; right: 1.4rem; height: 3px; background: linear-gradient(to right, #22c55e, #16a34a); border-radius: 3px;\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul style=\"list-style: none; padding-left: 0; margin: 1.3rem 0;\"\u003e\n\u003cli style=\"margin: 1rem 0; padding-left: 2rem; position: relative; font-size: 1.05rem;\"\u003e• Residential rooftop solar installations\u003c\/li\u003e\n\u003cli style=\"margin: 1rem 0; padding-left: 2rem; position: relative; font-size: 1.05rem;\"\u003e• Tesla Powerwall-connected PV systems\u003c\/li\u003e\n\u003cli style=\"margin: 1rem 0; padding-left: 2rem; position: relative; font-size: 1.05rem;\"\u003e• Tesla Solar Inverter installations\u003c\/li\u003e\n\u003cli style=\"margin: 1rem 0; padding-left: 2rem; position: relative; font-size: 1.05rem;\"\u003e• Rapid shutdown compliant PV arrays\u003c\/li\u003e\n\u003cli style=\"margin: 1rem 0; padding-left: 2rem; position: relative; font-size: 1.05rem;\"\u003e• New solar installations or system upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eInstallation Procedure\u003c\/h4\u003e\n\u003ch3 style=\"font-size: clamp(1.45rem, 4.6vw, 1.85rem); font-weight: 800; color: #0f172a; margin: 2rem 0 1.2rem; padding: 0.8rem 1.4rem; background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%); border-radius: 10px; box-shadow: 0 4px 12px rgba(15,23,42,0.08); position: relative; letter-spacing: -0.3px; line-height: 1.15;\"\u003eInstallation Procedure \u003cspan style=\"position: absolute; bottom: 0; left: 1.4rem; right: 1.4rem; height: 3px; background: linear-gradient(to right, #22c55e, #16a34a); border-radius: 3px;\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cdiv style=\"background: #f8fafc; border-left: 6px solid #22c55e; padding: 1.5rem 1.9rem; margin: 1.5rem 0 2.2rem; border-radius: 8px; font-size: 1.05rem; box-shadow: 0 2px 8px rgba(0,0,0,0.05);\"\u003e\n\u003cp style=\"margin: 0.9rem 0;\"\u003eFollow these simplified steps when installing the Tesla MCI-1 Mid-Circuit Interrupter within a solar PV string. Always follow Tesla documentation and local electrical codes. \u003cstrong\u003eNOTE: A Tesla-Certified Installer is required for this installation.\u003c\/strong\u003e\u003c\/p\u003e\n\u003col style=\"margin: 1.2rem 0 1.6rem 1.2rem; font-size: 1.05rem; line-height: 1.6;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount the device\u003c\/strong\u003e – Secure the MCI-1 to the module frame or mounting structure near the solar panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect the PV module leads\u003c\/strong\u003e – Plug the panel’s positive and negative MC4 connectors into the MCI-1 input connectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect the string output\u003c\/strong\u003e – Attach the MCI-1 output leads to the next module or PV string wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoute cables properly\u003c\/strong\u003e – Secure and organize wiring to prevent strain, abrasion, or exposure to sharp edges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify system connections\u003c\/strong\u003e – Confirm polarity, secure connectors, and test the system before energizing the array.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cdiv style=\"text-align: center; margin-top: 1.5rem;\"\u003e\u003cimg style=\"max-width: 100%; border-radius: 10px; box-shadow: 0 4px 14px rgba(0,0,0,0.12);\" alt=\"Tesla MCI-1 installation procedure diagram\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2367\/0343\/files\/grok-image-cb04c71f-5ae5-472c-a57a-4860d6abe67c.jpg?v=1773262062\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ch3 style=\"font-size: clamp(1.45rem, 4.6vw, 1.85rem); font-weight: 800; color: #0f172a; margin: 2rem 0 1.2rem; padding: 0.8rem 1.4rem; background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%); border-radius: 10px; box-shadow: 0 4px 12px rgba(15,23,42,0.08); position: relative; letter-spacing: -0.3px; line-height: 1.15;\"\u003eSpecifications \u003cspan style=\"position: absolute; bottom: 0; left: 1.4rem; right: 1.4rem; height: 3px; background: linear-gradient(to right, #22c55e, #16a34a); border-radius: 3px;\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul style=\"list-style: none; padding-left: 0; margin: 1.3rem 0;\"\u003e\n\u003cli style=\"margin: 1.1rem 0; padding: 1.2rem; background: #f8fafc; border-radius: 10px; border: 1px solid #e2e8f0; box-shadow: 0 2px 6px rgba(0,0,0,0.04);\"\u003e\n\u003cstrong style=\"display: block; font-size: 1.18rem; margin-bottom: 0.6rem; color: #0f172a;\"\u003eElectrical Ratings\u003c\/strong\u003e Nominal Input Current: 13A\u003cbr\u003eMaximum Short Circuit Current (ISC): 19A\u003cbr\u003eMaximum System Voltage: 600V DC\u003cbr\u003eMaximum Disconnect Voltage: 600V DC\u003c\/li\u003e\n\u003cli style=\"margin: 1.1rem 0; padding: 1.2rem; background: #f8fafc; border-radius: 10px; border: 1px solid #e2e8f0; box-shadow: 0 2px 6px rgba(0,0,0,0.04);\"\u003e\n\u003cstrong style=\"display: block; font-size: 1.18rem; margin-bottom: 0.6rem; color: #0f172a;\"\u003eMechanical\u003c\/strong\u003e Dimensions: 125 × 150 × 22 mm (5 × 6 × 1 in)\u003cbr\u003eWeight: 350 g (0.77 lb)\u003cbr\u003eConnections: MC4 Compatible Connectors\u003c\/li\u003e\n\u003cli style=\"margin: 1.1rem 0; padding: 1.2rem; background: #f8fafc; border-radius: 10px; border: 1px solid #e2e8f0; box-shadow: 0 2px 6px rgba(0,0,0,0.04);\"\u003e\n\u003cstrong style=\"display: block; font-size: 1.18rem; margin-bottom: 0.6rem; color: #0f172a;\"\u003eEnvironmental\u003c\/strong\u003e Operating Temperature: -40°C to 50°C (-40°F to 122°F)\u003cbr\u003eEnclosure Rating: NEMA 4X \/ IP65\u003cbr\u003eOutdoor Rated: Yes\u003c\/li\u003e\n\u003cli style=\"margin: 1.1rem 0; padding: 1.2rem; background: #f8fafc; border-radius: 10px; border: 1px solid #e2e8f0; box-shadow: 0 2px 6px rgba(0,0,0,0.04);\"\u003e\n\u003cstrong style=\"display: block; font-size: 1.18rem; margin-bottom: 0.6rem; color: #0f172a;\"\u003eCompliance \u0026amp; Warranty\u003c\/strong\u003e Certifications: UL 1741 PVRSE, UL 3741\u003cbr\u003eRapid Shutdown Type: Photovoltaic Rapid Shutdown Device\u003cbr\u003eWarranty: 25 Years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center; font-style: italic; color: #64748b; margin-top: 4.5rem; padding-top: 2.5rem; border-top: 1px solid #cbd5e1; font-size: 0.97rem;\"\u003eTesla MCI-1 Mid-Circuit Interrupter | Rapid Shutdown Device | NEC 690.12 Compliant | Solar PV Safety Component | Tesla Solar Inverter Compatible\u003c\/p\u003e\n\n\n  \u003ch4\u003e FAQs \u003c\/h4\u003e\n  \u003ch3 style=\"font-size: clamp(1.05rem, 3vw, 1.25rem); font-weight: 700; color: #0f172a; margin: 1.5rem 0 0.8rem; padding: 0.6rem 1rem; background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%); border-radius: 8px; position: relative;\"\u003e\nFrequently Asked Questions\n\u003cspan style=\"position: absolute; bottom: 0; left: 1rem; right: 1rem; height: 2.5px; background: linear-gradient(to right, #22c55e, #16a34a); border-radius: 3px;\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\n\u003cdiv style=\"margin: 1rem 0; font-size: 0.9rem;\"\u003e\n\n\u003cdiv style=\"margin-bottom: 1rem;\"\u003e\n\u003cstrong\u003e1. What is the Tesla MCI-1 Mid-Circuit Interrupter?\u003c\/strong\u003e\u003cbr\u003e\nThe Tesla MCI-1 is a 600V mid-circuit interrupter used in solar PV systems to improve safety by allowing controlled interruption of DC circuits.\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1rem;\"\u003e\n\u003cstrong\u003e2. What does the MCI-1 do in a solar system?\u003c\/strong\u003e\u003cbr\u003e\nIt provides enhanced safety by enabling rapid shutdown and circuit interruption in emergency situations, helping protect people and property.\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1rem;\"\u003e\n\u003cstrong\u003e3. Where is the Tesla MCI-1 installed?\u003c\/strong\u003e\u003cbr\u003e\nIt is installed within the solar PV string circuit, typically between solar panels or at specific points in the array depending on system design.\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1rem;\"\u003e\n\u003cstrong\u003e4. Is the Tesla MCI-1 required for solar installations?\u003c\/strong\u003e\u003cbr\u003e\nIn many regions, mid-circuit interrupters or rapid shutdown devices are required to meet electrical code and solar safety standards.\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1rem;\"\u003e\n\u003cstrong\u003e5. What is the voltage rating of the Tesla MCI-1?\u003c\/strong\u003e\u003cbr\u003e\nThe MCI-1 is rated for up to 600V DC systems.\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1rem;\"\u003e\n\u003cstrong\u003e6. Is the MCI-1 compatible with all solar panels?\u003c\/strong\u003e\u003cbr\u003e\nIt is compatible with most standard solar PV modules, depending on system configuration and design.\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1rem;\"\u003e\n\u003cstrong\u003e7. How does the MCI-1 improve safety?\u003c\/strong\u003e\u003cbr\u003e\nIt reduces electrical risk by allowing fast shutdown of solar circuits during emergencies such as fires or maintenance work.\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1rem;\"\u003e\n\u003cstrong\u003e8. Can the MCI-1 be added to existing solar systems?\u003c\/strong\u003e\u003cbr\u003e\nYes, it can be installed in both new and retrofit solar PV systems depending on layout and compliance needs.\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1rem;\"\u003e\n\u003cstrong\u003e9. Does the Tesla MCI-1 require maintenance?\u003c\/strong\u003e\u003cbr\u003e\nNo, it is a passive safety device that does not require regular maintenance.\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1rem;\"\u003e\n\u003cstrong\u003e10. Do I need a professional to install it?\u003c\/strong\u003e\u003cbr\u003e\nYes, installation must be done by a qualified solar or electrical installer to ensure proper function and safety compliance.\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1rem;\"\u003e\n\u003cstrong\u003e11. Is the MCI-1 part of a rapid shutdown system?\u003c\/strong\u003e\u003cbr\u003e\nYes, it is designed to support rapid shutdown requirements in modern solar installations.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"RC City","offers":[{"title":"Default Title","offer_id":42527437389918,"sku":"7590901612638","price":59.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2367\/0343\/files\/MCI-1.png?v=1773262067","url":"https:\/\/rccity.us\/products\/tesla-mci-1-solar-mid-circuit-interrupter","provider":"RC City","version":"1.0","type":"link"}