{"product_id":"mars-33350-manual-reset-pressure-switch","title":"Mars 33350 Manual Reset Pressure Switch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe MARS 33350 is a manual reset pressure switch designed for use in HVAC and refrigeration systems where reliable pressure protection is essential. This switch monitors system pressure and opens the circuit when pressure falls outside the acceptable operating range. Unlike automatic reset switches, the MARS 33350 requires a technician to manually reset the switch after a fault condition is cleared. This design prevents equipment from cycling back on without direct human intervention, reducing the risk of repeated compressor or equipment damage caused by unresolved pressure faults. HVAC technicians and refrigeration service professionals rely on manual reset pressure switches like this one to add a layer of protection to compressors, condensing units, and other refrigerant-circuit components. When a low-pressure or high-pressure event trips the switch, the system stays locked out until a qualified tech inspects the equipment and resets the control. This approach helps protect costly equipment and meets best practices for safe system operation. The MARS 33350 carries UL Recognized approval, confirming it meets established safety and performance standards used across the industry. Its compact form factor makes it easy to install in tight equipment compartments. With dimensions of 3 inches in length, 2.5 inches in width, and 1.3 inches in height, and a weight of approximately 0.15 pounds, this switch fits well in residential and light commercial HVAC applications. It ships as an individual unit and is manufactured in Mexico. HVAC service technicians, refrigeration mechanics, and equipment installers will find the MARS 33350 a dependable replacement or upgrade for existing pressure switch installations requiring manual reset functionality.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eManual reset design keeps system locked out after a pressure fault until a technician inspects and resets the switch\u003c\/li\u003e\n\u003cli\u003eUL Recognized approval confirms compliance with industry safety and performance standards\u003c\/li\u003e\n\u003cli\u003eCompact size at 3 inches by 2.5 inches by 1.3 inches fits residential and light commercial HVAC equipment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\u003cp\u003eThe MARS 33350 manual reset pressure switch provides reliable pressure fault protection for HVAC and refrigeration systems, requiring technician intervention before the system can restart after a trip event. Its UL Recognized rating and compact build make it a trusted choice for professional service and replacement applications.\u003c\/p\u003e\u003ch3\u003eProduct Information\u003c\/h3\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: MARS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 33350\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch Type\u003c\/strong\u003e: Manual Reset Pressure Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApprovals\u003c\/strong\u003e: UL Recognized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 1.3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.15 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: Mexico\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 685744333500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MARS","offers":[{"title":"Default Title","offer_id":51121023385906,"sku":"33350","price":24.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/304886300.jpg?v=1777746215","url":"https:\/\/voomisupply.com\/products\/mars-33350-manual-reset-pressure-switch","provider":"Voomi Supply","version":"1.0","type":"link"}