{"product_id":"ldminda-12v-300a-solenoid-relay-4-terminal-nickel-plated-heavy-duty-spst-bracket-mount","title":"LDMINDA 12V 300A Solenoid Relay 4-Terminal Nickel-Plated - Heavy-Duty SPST Bracket-Mount","description":"\u003cp\u003e\u003cstrong\u003eLDMINDA's 4-terminal 12V solenoid relay is a nickel-plated, heavy-duty 300A transient-rated switch designed to reliably control battery power for golf carts, winches and marine equipment.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis durable SPST-style solenoid delivers a high transient current capacity in a compact bracket-mounted package. Built with a nickel-plated housing and a tightly wound copper coil, the relay is engineered to reduce voltage loss and protect battery life when switching heavy loads. It replaces a range of common part numbers and fits standard mounting hole centers, making it a practical direct-replacement component for maintenance and upgrades.\u003c\/p\u003e\n\n\u003ch3\u003eHow much current can this solenoid handle and what are the safe limits?\u003c\/h3\u003e\n\u003cp\u003eThe solenoid is rated for a maximum transient flash current of 300A but is intended to operate continuously at lower currents. For long-term use keep continuous current below the recommended threshold to avoid overheating.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaximum transient (flash) current: 300A\u003c\/li\u003e\n  \u003cli\u003eRecommended continuous working current: under 150A (typical safe use ≈ 80A)\u003c\/li\u003e\n  \u003cli\u003eContinuous operation guidance: up to 5 minutes, then cool down period\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and construction make this relay durable?\u003c\/h3\u003e\n\u003cp\u003eThe relay uses a high-temperature copper coil and nickel-plated housing to resist corrosion and maintain reliable electrical contact. Copper contact points reduce resistive losses and help maintain stable battery voltage under load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCoil windings: 180°C rated copper wire for thermal resilience\u003c\/li\u003e\n  \u003cli\u003eHousing finish: nickel plating for environmental protection\u003c\/li\u003e\n  \u003cli\u003eContact type: copper points for improved conductivity and reduced power loss\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich vehicles and applications is this solenoid compatible with?\u003c\/h3\u003e\n\u003cp\u003eDesigned as a general-purpose battery isolation and switching relay, it suits golf carts, utility vehicles, winches, small marine systems and other 12V DC equipment. It replaces a variety of OEM part numbers, simplifying repairs and fleet maintenance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCommonly used on golf carts and electric utility vehicles\u003c\/li\u003e\n  \u003cli\u003eSuitable for winch control, battery isolator tasks, and marine 12V systems\u003c\/li\u003e\n  \u003cli\u003eReplaces OEM numbers: 70-111224, 3635820, 1114208, 1114218, 1114223, 1114534, 1114547\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I mount and wire this 4-terminal solenoid safely?\u003c\/h3\u003e\n\u003cp\u003eThe relay is designed for straightforward bracket mounting with two center-spaced holes and clear four-terminal connections. Follow vehicle wiring diagrams and secure connections to the proper battery and accessory terminals to ensure reliable switching.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBracket mounting hole centers: 5\/16 x 19\/32 (2-13\/64 inches on center)\u003c\/li\u003e\n  \u003cli\u003eFour terminals: two heavy power terminals, two control\/coil terminals for SPST operation\u003c\/li\u003e\n  \u003cli\u003eUse appropriate gauge cable and secure hardware to prevent voltage drop\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? This LDMINDA solenoid is aimed at DIY mechanics, fleet maintenance teams and anyone who services electric golf carts, light-duty winches, and small marine electrical systems. It’s a good choice if you need a direct-replacement relay with high transient capability, corrosion-resistant plating, and copper contacts to minimize power loss during heavy starts or intermittent high-current events. Always follow safe wiring practices and respect the recommended continuous current limits for reliable long-term performance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this solenoid run a winch continuously?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It can handle short heavy bursts (up to 300A transient) but continuous operation should be kept under 150A with cooling breaks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this replace OEM part 1114218?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, this LDMINDA relay is compatible with 1114218 and several other listed replacement numbers.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"LDMINDA","offers":[{"title":"Default Title","offer_id":67594209788089,"sku":"B0BDFBCVRP","price":54.6,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/ldminda-front-view-nickel-plated-solenoid.jpg?v=1790582395","url":"https:\/\/redleafauto.ca\/products\/ldminda-12v-300a-solenoid-relay-4-terminal-nickel-plated-heavy-duty-spst-bracket-mount","provider":"Redleaf Auto","version":"1.0","type":"link"}