{"product_id":"blue-sea-contura-double-pole-double-throw-on-off-on-switch-grey","title":"Blue Sea Contura Double-Pole Double-Throw ON-OFF-ON Switch, Grey","description":"\u003ch2\u003eHeavy-Duty Marine Rocker Switch for Complex Circuit Control\u003c\/h2\u003e\u003cp\u003eManaging multi-circuit electrical systems in harsh marine and off-grid environments requires hardware built to withstand constant exposure to the elements. The Blue Sea Systems Contura Double-Pole Double-Throw (DPDT) switch offers reliable, three-position ON-OFF-ON control in a rugged, panel-mounted form factor. Specifically engineered for integration into Blue Sea Systems water-resistant panels, this grey rocker switch provides tactile, positive actuation for demanding 12V and 24V electrical installations.\u003c\/p\u003e\u003ch3\u003eAdvanced Protection Against Harsh Marine Conditions\u003c\/h3\u003e\u003cp\u003eStandard automotive switches frequently fail when exposed to coastal environments due to internal corrosion and mechanical fatigue. This Contura series switch is purpose-built to mitigate these risks. Featuring a heavy-duty internal rubber sealing gasket and robust casing, it actively resists moisture ingress, salt spray, and extreme temperature fluctuations (thermoshock). Whether mounted on an exposed flybridge, a centre console, or the dashboard of an off-road 4WD, the switch maintains continuity and mechanical integrity under constant vibration and heavy physical shock.\u003c\/p\u003e\u003ch3\u003eCertified Ignition Protection for Petrol Vessels\u003c\/h3\u003e\u003cp\u003eElectrical safety is critical when installing switchgear near fuel sources or in enclosed engine bays. This switch meets stringent UL 1500 and ISO 8846 ignition-protection standards. This certification means the switch is sealed to prevent internal electrical arcs from igniting surrounding flammable gases, making it safe for installation aboard petrol-powered boats and near battery compartments where hydrogen gas may accumulate.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile DPDT Configuration:\u003c\/strong\u003e Double-Pole Double-Throw architecture allows simultaneous control of two isolated circuits or easy polarity reversal, featuring a positive centre-off position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertified Ignition Protected:\u003c\/strong\u003e Compliant with UL 1500 and ISO 8846 standards, reducing fire risks aboard petrol-powered vessels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Resilience:\u003c\/strong\u003e Engineered to withstand prolonged exposure to salt spray, moisture, severe vibration, mechanical shock, and thermoshock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual Status Indicators:\u003c\/strong\u003e Equipped with dual translucent indicator windows on the grey actuator face for clear backlighting and circuit status monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Panel Integration:\u003c\/strong\u003e Designed with integrated snap-in mounting clips and a perimeter sealing gasket for a tight, water-resistant fit in compatible panels.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePractical Applications for DPDT ON-OFF-ON Switching\u003c\/h3\u003e\u003cp\u003eA Double-Pole Double-Throw switch with a centre-off position is essentially two separate switches operating in tandem. This makes it highly versatile for specialised marine, caravan, and commercial vehicle wiring setups:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNavigation and Anchor Lights:\u003c\/strong\u003e Wire the switch to turn on both running lights and the anchor light in one ON position, turn everything off in the middle, and illuminate only the anchor light in the opposite ON position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Bilge Pump Systems:\u003c\/strong\u003e Control two independent bilge pumps or switch between manual override and automatic float switch modes across dual circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Polarity Reversal:\u003c\/strong\u003e Ideal for reversing the direction of wiper motors, electric winches, trim tabs, or linear actuators by cross-wiring the rear spade terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Bank Selection:\u003c\/strong\u003e Switch voltage sensing leads or auxiliary loads between primary and secondary battery banks without cross-connecting the systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUpgrade Your Electrical Panel\u003c\/h3\u003e\u003cp\u003eAvoid the reliability issues and corrosion hazards of standard switches. Configure your marine dash, caravan control board, or custom 4WD electrical system with the Blue Sea Contura DPDT ON-OFF-ON Switch for dependable, compliant circuit management.\u003c\/p\u003e","brand":"Blue Sea","offers":[{"title":"Default Title","offer_id":43631763030077,"sku":"BS-8220B","price":37.06,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/3918\/3933\/files\/blue-sea-contura-dpdt-on-off-on-switch-grey-bs-8220b.png?v=1792905545","url":"https:\/\/www.solar4rvs.com.au\/products\/blue-sea-contura-double-pole-double-throw-on-off-on-switch-grey","provider":"Solar 4 RVs","version":"1.0","type":"link"}