{"product_id":"johnson-pump-ultima-automatic-bilge-pump-switch-solid-state-20a-12v-24v-float-switch-model-36303","title":"Johnson Pump Ultima Automatic Bilge Pump Switch, Solid-State 20A 12V\/24V Float Switch, Model 36303","description":"\u003cp\u003eThe Johnson Pump Ultima Automatic Bilge Pump Switch (36303) is a solid-state float switch that automatically turns a bilge pump on and off based on rising and falling water levels, with no moving parts to jam, corrode, or wear out. Instead of a traditional mechanical float, the Ultima Switch uses patented Mirus field effect detector cells that generate micro-electrical fields to sense disruptions caused by water. These detector cells are fully sealed and never contact water directly, so they will not corrode and are unaffected by oil or foreign debris in the bilge.\u003c\/p\u003e\u003cp\u003eThe switch activates once fluid reaches a 2 inch level and deactivates once the level drops to 3\/4 inch, with a built-in eight second delay that helps prevent false starts from sloshing water. It is rated to handle bilge pumps drawing up to 20 amps at either 12V or 24V, making it suitable for a wide range of boat electrical systems. A unique 3-way switch lets the operator disable the piezo alarm while keeping the warning LED illuminated, so the boat owner still gets a visual alert without the audible tone. With sealed solid-state electronics, no exposed sensors, and no mercury, the Johnson Ultima Switch is built to hold up in the harsh, wet marine environment where conventional float switches tend to fail.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Johnson Pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 36303\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Float Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump Type:\u003c\/strong\u003e Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActivation Level:\u003c\/strong\u003e 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeactivation Level:\u003c\/strong\u003e 3\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDelay:\u003c\/strong\u003e 8 seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e Up to 20 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 12V or 24V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Source:\u003c\/strong\u003e Battery powered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.29375 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 729321363037\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eUniversal for 12V or 24V bilge pump systems rated up to 20 amps; not restricted to a specific make or model.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003eNo OEM cross-reference numbers are specified for this part.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Johnson Pump 36303 Ultima switch do?\u003c\/strong\u003e The Johnson Pump Ultima Automatic Bilge Pump Switch (36303) automatically activates and deactivates a bilge pump based on fluid level, using patented field effect detector technology instead of a moving float.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAt what water levels does the Ultima Switch turn the pump on and off?\u003c\/strong\u003e The switch activates once fluid reaches a 2 inch level and deactivates once the level drops to 3\/4 inch, with an 8 second delay built in to prevent false starts from sloshing water.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is this different from a traditional float switch?\u003c\/strong\u003e The Johnson Ultima Switch has no moving parts and uses sealed solid-state electronics with field effect detector cells rather than an exposed mechanical float, reducing the corrosion and jamming issues common with traditional float switches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat amperage and voltage is the Ultima Switch rated for?\u003c\/strong\u003e Model 36303 is rated to handle bilge pumps drawing up to 20 amps at either 12V or 24V.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the sensor ever touch the water directly?\u003c\/strong\u003e No. The detector cells in the Johnson Ultima Switch are totally sealed and never contact water or fluid directly, which is why they will not corrode and are not affected by oil or debris.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Ultima Switch have an alarm?\u003c\/strong\u003e Yes, it includes a piezo alarm along with a warning LED, and a unique 3-way switch lets you disable the audible alarm while keeping the LED lit for a visual-only warning.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there any mercury in this switch?\u003c\/strong\u003e No, the Johnson Pump Ultima Switch (36303) contains no mercury, consistent with its fully sealed solid-state design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Johnson Ultima Switch weigh?\u003c\/strong\u003e The Johnson Pump 36303 Ultima Bilge Pump Switch weighs 0.29375 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this switch fit any bilge pump?\u003c\/strong\u003e The Ultima Switch is not tied to a specific bilge pump make or model; it can be combined with any bilge pump rated within its 20 amp, 12V\/24V capacity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Ultima Switch prone to false triggering from wave action?\u003c\/strong\u003e The 36303 switch includes an eight second activation delay specifically to help prevent false starts caused by sloshing or wave-induced water movement.\u003c\/p\u003e","brand":"Johnson Pump","offers":[{"title":"Default Title","offer_id":49028227072219,"sku":"JON-36303","price":55.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/36303__54963.1558322791.500.750.jpg?v=1785164650","url":"https:\/\/www.goodvibesmarina.com\/products\/johnson-pump-ultima-automatic-bilge-pump-switch-solid-state-20a-12v-24v-float-switch-model-36303","provider":"Good Vibes Marina","version":"1.0","type":"link"}