Powermax PMTS-30: Seamless 30A Automatic Power Switching The Powermax PMTS-30 is the ultimate "set-it-and-forget-it" solution for managing AC power in your RV, boat, or off-grid cabin. Designed for 30 Amp 120V systems, this automatic transfer switch (ATS) eliminates the need to manually move power cords between shore power and your onboard generator. It intelligently senses the presence of power and automatically routes it to your electrical panel, ensuring your appliances stay powered without manual intervention. Engineered with safety in mind, the PMTS-30 features a built-in 20-30 second time delay when switching to generator power. This critical delay allows your generator's voltage to stabilize before the load is applied, protecting sensitive electronics and motors from the harmful effects of unstable start-up power. As an ETL Listed component, it meets rigorous safety standards (UL/CSA), providing peace of mind for professional and DIY installers alike. Search Summary: 30A / 120VAC Rated | Automatic Shore/Generator Switching | 20-30s Stabilization Delay | ETL & FCC Certified | Durable High-Impact Enclosure | Hardwire Installation | 2-Year Warranty. Key Performance Benefits: Automatic Priority Switching: Shore power is prioritized (Input 1). When shore power is disconnected, it automatically switches to your secondary source (Generator/Inverter). Voltage Protection Delay: The integrated delay ensures clean, stable electricity reaches your AC breaker panel, reducing wear and tear on AC units and refrigerators. Compact & Versatile Design: Housed in a durable, high-impact plastic enclosure that can be mounted in any orientation to fit tight electrical compartments. Professional Hardwire Setup: Features standard knockouts and terminal blocks for a secure, permanent connection to your RV's 30 Amp service. Maintenance-Free Operation: High-quality relay-based design requires no periodic servicing or adjustments once installed. Technical Specifications: Voltage / Frequency 120 VAC, 60 Hz Rated Capacity 30 Amps Switching Delay 20 - 30 Seconds Safety Listings cETL (UL458 / CSA), FCC Compliant Dimensions 8.0" x 8.0" x 3.0" Warranty 2 Years Standard Ideal Applications: Class B & C RVs: Perfect for smaller motorhomes with 30A service. Off-Grid Solar: Automatically switches between an inverter and a backup generator. Marine Vessels: Reliable switching between dockside shore power and onboard gensets. Installation Tip: The PMTS-30 should be installed in a dry, ventilated location. Ensure all connections are tightened to specification and use the provided knockouts for clean wire routing to prevent vibration-related loosening over time.