{"product_id":"blue-sea-3-position-single-pole-double-throw-spdt-toggle-switch-on-off-on","title":"Blue Sea 3-Position Single-Pole Double-Throw (SPDT) Toggle Switch (ON)-OFF-ON","description":"\u003ch2\u003eReliable SPDT Control for Marine and Automotive Panels\u003c\/h2\u003e\u003cp\u003eThe Blue Sea 8207B is a heavy-duty manual toggle switch engineered for complex switching requirements where standard ON-OFF controls fall short. Featuring a Single-Pole Double-Throw (SPDT) configuration and a three-position (ON)-OFF-ON action, it offers both momentary and maintained circuit control in a single unit. Whether you are building a custom marine helm, upgrading an off-grid campervan electrical panel, or managing industrial machinery, this switch delivers consistent, tactile performance.\u003c\/p\u003e\u003cp\u003eUnlike standard switches that can leave your panel looking mismatched when combining circuit breakers and non-protected controls, this toggle switch is specifically designed to integrate seamlessly into Blue Sea Systems A-Series toggle circuit breaker panels. Please note that while it matches the form factor of A-Series breakers, this unit is strictly a switching component and does not provide overcurrent circuit protection.\u003c\/p\u003e\u003ch3\u003eUnderstanding the (ON)-OFF-ON Switching Sequence\u003c\/h3\u003e\u003cp\u003eIn electrical schematics, parentheses around an action indicate a momentary position. The (ON)-OFF-ON sequence gives you three distinct control states from a single common terminal:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMomentary (ON):\u003c\/strong\u003e Pushing the white toggle actuator in one direction engages the circuit only while held. Once released, an internal spring returns the lever to the centre OFF position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentre OFF:\u003c\/strong\u003e The neutral resting position where both output circuits are completely disconnected from the power source.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintained ON:\u003c\/strong\u003e Flipping the toggle in the opposite direction locks the switch into place, providing continuous power to the secondary circuit until manually switched off.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis specific dual-function arrangement is essential for equipment requiring both continuous operation and temporary override or priming functions. For instance, in a marine bilge pump installation, the maintained ON position powers the automatic float switch circuit, while the momentary (ON) position allows the operator to manually test or override the pump.\u003c\/p\u003e\u003ch3\u003eBuilt for Harsh Marine and Off-Road Environments\u003c\/h3\u003e\u003cp\u003eStandard automotive switches often succumb to corrosion when exposed to salt spray, high humidity, or condensation, leading to high-resistance connections and eventual failure. The BS-8207B mitigates this risk by utilising a non-corrosive construction of nickel-plated brass and phenolic materials. This robust material selection resists oxidation and ensures reliable electrical conductivity over the lifespan of your vessel or vehicle.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless Panel Integration:\u003c\/strong\u003e Fits directly into standard Blue Sea A-Series toggle circuit breaker apertures, ensuring a uniform, professional aesthetic across your dashboard or switchboard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Adapter Included:\u003c\/strong\u003e Supplied with a black mounting plate and recessed screws to suit standard 5\/8-inch (approx. 16mm) circuit breaker mounting holes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion-Resistant Materials:\u003c\/strong\u003e Manufactured from nickel-plated brass and high-grade phenolic to withstand moisture-rich marine and coastal environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick-Connect Rear Terminals:\u003c\/strong\u003e Equipped with rear blade terminals that allow for rapid, secure wiring terminations using standard female spade connectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Application Range:\u003c\/strong\u003e Ideal for controlling bilge pumps (Auto-Off-Manual), windscreen wipers, generator starters, horns, and auxiliary engine controls.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUpgrade Your Control Panel with Confidence\u003c\/h3\u003e\u003cp\u003eEnsure your electrical system operates reliably when you need it most. Integrate the Blue Sea 8207B (ON)-OFF-ON toggle switch into your marine helm, caravan control board, or custom dashboard for dependable, corrosion-resistant circuit switching.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":43631761129533,"sku":"BS-8207B","price":25.74,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/blue-sea-spdt-toggle-switch-on-off-on-bs-8207b.png?v=1792904682","url":"https:\/\/www.solar4rvs.com.au\/products\/blue-sea-3-position-single-pole-double-throw-spdt-toggle-switch-on-off-on","provider":"Solar 4 RVs","version":"1.0","type":"link"}