{"product_id":"powermax-pmts-30-30a-automatic-rv-transfer-switch-120v-2-input-auto-sensing-break-before-make","title":"PowerMax PMTS-30 30A Automatic RV Transfer Switch 120V — 2-Input Auto-Sensing, Break-Before-Make","description":"\u003cstrong\u003ePowerMax PMTS-30 is a 30-amp automatic transfer switch that instantly selects between two 120V sources and delivers safe, continuous power to a single RV circuit.\u003c\/strong\u003e\n\n\u003cp\u003eIf you operate an RV, mobile workshop, or small backup system, the PMTS-30 removes the hassle of manual cord changes when your available power source shifts. Designed to accept two independent 120V inputs — for example shore power and a portable generator — this compact unit monitors voltage and switches automatically to the preferred source so your appliances and outlets remain powered without interruption.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the PMTS-30 decide which power source to use?\u003c\/h3\u003e\n\u003cp\u003eThe unit constantly monitors both 120V inputs and transfers to the source that meets preset voltage and frequency thresholds. It prevents unsafe backfeeding between sources by isolating the input not in use and only connects the selected source to the load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAutomatic sensing of voltage and frequency to select the best input\u003c\/li\u003e\n  \u003cli\u003eBreak-before-make switching to avoid connecting both sources together\u003c\/li\u003e\n  \u003cli\u003eRapid, reliable transfer to minimize interruptions to appliances\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat installation and wiring considerations should I know?\u003c\/h3\u003e\n\u003cp\u003ePMTS-30 requires correct wiring and grounding per applicable electrical codes and RV standards. A licensed electrician or certified RV technician should perform installation to ensure safe connections, correct breaker sizing, and proper enclosure mounting.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMount in a dry, accessible location with adequate ventilation\u003c\/li\u003e\n  \u003cli\u003eUse appropriately rated conductors and a 30A breaker for the load side\u003c\/li\u003e\n  \u003cli\u003eFollow local code and manufacturer wiring diagrams for input\/output terminations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich devices and setups is this transfer switch compatible with?\u003c\/h3\u003e\n\u003cp\u003eThe PMTS-30 is built for single-circuit, 120V systems up to 30 amps—typical for RV distribution panels, air conditioners, microwaves, and outlet circuits. It pairs with shore pedestal connections and portable or onboard generators that supply a standard 120V output.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorks with shore power pedestals and portable generators\u003c\/li\u003e\n  \u003cli\u003eSuitable for motors, HVAC, kitchen appliances, and general outlets\u003c\/li\u003e\n  \u003cli\u003eNot intended for multi-phase or higher-voltage distribution\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this unit improve everyday RV power management?\u003c\/h3\u003e\n\u003cp\u003eBy automating source selection, the PMTS-30 reduces the need to physically swap cords or manually flip breakers during transitions between shore and generator power. That lowers wear on cords and connectors and keeps critical loads powered without user intervention.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSaves time and reduces manual switching errors\u003c\/li\u003e\n  \u003cli\u003eProtects connected equipment from improper source connections\u003c\/li\u003e\n  \u003cli\u003eProvides consistent, predictable power handoff in camp or travel situations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe PMTS-30 is constructed with a rugged enclosure and components intended for repeated cycling and long-term service life, making it a practical addition to RV electrical systems and portable backup setups. It simplifies on-the-go power changes while isolating sources to protect equipment and prevent backfeeding.\u003c\/p\u003e\n\n\u003cp\u003eWho is this for: The PowerMax PMTS-30 is aimed at RV owners, mobile contractors, and anyone using a single 120V circuit with shore and generator options who wants automated, code-compliant switching. If you need a compact, reliable device to manage two 120V sources for a 30A circuit and prefer professional installation, this transfer switch fits those needs without adding complex controls.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the PMTS-30 be used with a 30A RV shore power and a portable generator?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It accepts two 120V inputs up to 30 amps and automatically transfers between shore and generator power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need an electrician to install the transfer switch?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: A qualified electrician or RV technician should install it to meet wiring codes and ensure safe operation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"PowerMax","offers":[{"title":"Default Title","offer_id":48080180019358,"sku":"B006FLT0IG","price":108.5,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/powermax-pmts-30-front-panel.jpg?v=1785779567","url":"https:\/\/northtrailauto.ca\/products\/powermax-pmts-30-30a-automatic-rv-transfer-switch-120v-2-input-auto-sensing-break-before-make","provider":"North Trail Auto","version":"1.0","type":"link"}