{"product_id":"rule-40a-rule-a-matic-plus-automatic-bilge-pump-float-switch-12-24-32v-dc","title":"Rule 40A Rule-A-Matic Plus Automatic Bilge Pump Float Switch, 12\/24\/32V DC","description":"\u003cp\u003eThe Rule-A-Matic Plus Automatic Bilge Pump Float Switch (part number 40A) is an automatic on\/off control switch for boat bilge pumps. It activates the connected pump when water in the bilge rises to 2 inches and shuts the pump off once the water level falls back to 3\/4 inch, giving hands-free, reliable bilge management without constant monitoring.\u003c\/p\u003e\u003cp\u003eThe switch is built around a strong, fully integrated, impact-resistant cover that shields the internal float mechanism from debris and helps prevent jamming, a common failure point in bilge compartments where bits of hose, sediment, and other loose material collect. It is mercury-free and includes a built-in test feature so the switch can be checked for proper operation without waiting for water to reach the trigger level. A protective shield is included with the unit. The float switch is fitted with 14 AWG marine-grade, highly abrasion-resistant blocked wire measuring 28 inches, and its exclusive moisture-tight seals are designed to keep the internal components protected in a wet bilge environment.\u003c\/p\u003e\u003cp\u003eA detachable mounting base allows the switch to be removed for cleaning or servicing without disturbing the wiring connections. Rule recommends installing the Rule-A-Matic Plus on a flat surface within the bilge compartment for maximum performance. The switch is rated for 12, 24, or 32 volt DC systems and is backed by a 2 year warranty.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Rule\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 40A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Float Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 12\/24\/32 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmp Draw:\u003c\/strong\u003e 20 amp at 12V, 10 amp at 24V, 6.5 amp at 32V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActivation Water Level:\u003c\/strong\u003e 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeactivation Water Level:\u003c\/strong\u003e 3\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 4-7\/8 inches L x 2-1\/2 inches W x 2-3\/4 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Size:\u003c\/strong\u003e 14 AWG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Length:\u003c\/strong\u003e 28 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 years\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 042237095633\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Rule 40A Rule-A-Matic Plus float switch do?\u003c\/strong\u003e It automatically turns a connected bilge pump on and off based on water level, activating the pump when water reaches 2 inches and switching it off once the level drops to 3\/4 inch.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAt what water levels does the Rule-A-Matic Plus 40A activate and deactivate?\u003c\/strong\u003e The 40A switch turns the pump on at a 2 inch water level and turns it off once the water recedes to 3\/4 inch.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Rule 40A float switch mercury-free?\u003c\/strong\u003e Yes, the Rule-A-Matic Plus 40A is a mercury-free float switch.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the Rule-A-Matic Plus 40A be tested without waiting for the bilge to fill?\u003c\/strong\u003e Yes, the 40A includes a built-in test feature that lets you check switch operation without needing water to reach the 2 inch activation level.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat voltage systems is the Rule 40A compatible with?\u003c\/strong\u003e The Rule-A-Matic Plus 40A is rated for 12, 24, or 32 volt DC systems, drawing 20 amps at 12V, 10 amps at 24V, and 6.5 amps at 32V.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions and wiring of the Rule 40A float switch?\u003c\/strong\u003e The 40A measures 4-7\/8 inches long by 2-1\/2 inches wide by 2-3\/4 inches high and comes with 28 inches of 14 AWG marine-grade blocked wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Rule-A-Matic Plus 40A weigh?\u003c\/strong\u003e The Rule 40A float switch weighs 1.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the mounting base on the 40A removable for cleaning?\u003c\/strong\u003e Yes, the Rule-A-Matic Plus 40A has a detachable mounting base that makes it easy to remove the switch for cleaning or servicing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the Rule 40A protected against jamming from bilge debris?\u003c\/strong\u003e A strong, fully integrated, impact-resistant cover shields the float mechanism of the 40A from debris and helps prevent jamming.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Rule-A-Matic Plus 40A come with a warranty?\u003c\/strong\u003e Yes, the Rule 40A Rule-A-Matic Plus float switch includes a 2 year warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere should the Rule 40A float switch be installed?\u003c\/strong\u003e Rule recommends mounting the Rule-A-Matic Plus 40A on a flat surface in the bilge compartment for maximum performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the Rule-A-Matic Plus 40A compare to the Rule Super Switch 37A?\u003c\/strong\u003e Both the 40A and the Super Switch 37A activate at 2 inches and deactivate at 3\/4 inch and are mercury-free, but the 40A adds a built-in test feature, an impact-resistant cover, and an included shield, while the 37A offers a larger float for increased buoyancy and a 5 year warranty compared to the 40A's 2 year warranty.\u003c\/p\u003e","brand":"Rule","offers":[{"title":"Default Title","offer_id":49028301979867,"sku":"RUL-40A","price":59.92,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/RUL-40A_lg__57102.1698414585.500.750.jpg?v=1785165439","url":"https:\/\/www.goodvibesmarina.com\/products\/rule-40a-rule-a-matic-plus-automatic-bilge-pump-float-switch-12-24-32v-dc","provider":"Good Vibes Marina","version":"1.0","type":"link"}