{"product_id":"madison-m4300-liquid-level-float-switch-1-4-thread-150-psi","title":"Madison M4300 Liquid Level Float Switch 1\/4 Thread 150 Psi","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MADISON M4300 is a full-size liquid level float switch designed for general-purpose liquid sensing applications, including fuels. It features a 1\/4-inch NPT thread connection, a brass and Buna-N body construction, and a rated maximum pressure of 150 psi. The switch operates on a single-pole single-throw (SPST) logic and is rated for 120 volts AC and 240 volts AC service. With a float diameter of 1.25 inches and a float specific gravity rating of 0.45, it is suited for low-density liquids. Licensed plumbers, HVAC technicians, and industrial maintenance professionals install this switch in tanks, sumps, and reservoirs where automatic level detection is required.\u003c\/p\u003e\n\u003cp\u003eThe M4300 is applicable in both residential and light commercial settings where liquid level monitoring or pump control is needed. Its general-purpose rating, combined with compatibility with fuel media, makes it a practical choice for day tanks, fuel storage systems, sump applications, and water holding vessels. The brass body with Buna-N seals provides resistance to a range of liquid media encountered in standard trade installations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFull-size SPST float switch with 1\/4-inch NPT thread for direct tank or pipe mounting\u003c\/li\u003e\n  \u003cli\u003eRated to 150 psi maximum operating pressure\u003c\/li\u003e\n  \u003cli\u003eCompatible with general-purpose liquids including fuels\u003c\/li\u003e\n  \u003cli\u003eBrass and Buna-N body construction for broad media compatibility\u003c\/li\u003e\n  \u003cli\u003eDual voltage rating: 120 volts AC and 240 volts AC\u003c\/li\u003e\n  \u003cli\u003e1.25-inch float diameter with 0.45 specific gravity rating for low-density liquids\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation float switch for general-purpose liquid level control applications involving water, fuels, and similar media in residential and commercial tank systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber, electrician, or qualified technician familiar with liquid-level control wiring and applicable NEC requirements. Shut off all power to the circuit and depressurize the tank or piping before threading the switch into the port. Apply appropriate thread sealant compatible with the media being sensed. Verify float orientation and swing clearance inside the tank before completing the installation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwitch Type\u003c\/strong\u003e: Full Size Float Switch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwitch Logic\u003c\/strong\u003e: SPST\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4 inch NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Pressure\u003c\/strong\u003e: 150 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Temperature\u003c\/strong\u003e: 105 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e: 120 volts AC \/ 240 volts AC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWattage\u003c\/strong\u003e: 60W \/ 60kW\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFloat Diameter\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFloat Specific Gravity\u003c\/strong\u003e: 0.45\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Brass \/ Buna-N\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: General purpose, including fuels\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.19 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: MADISON\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: M4300\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MADISON","offers":[{"title":"Default Title","offer_id":51703187374386,"sku":"M4300","price":108.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b268ed60192e39f298b68f0b92d11c37.jpg?v=1788415293","url":"https:\/\/voomisupply.com\/products\/madison-m4300-liquid-level-float-switch-1-4-thread-150-psi","provider":"Voomi Supply","version":"1.0","type":"link"}