DIY Solar Power - Made Easy!
  • Home
  • DIY Solar Packages
    • Handtruck System Builder
    • Off-grid System Builder
    • Hybrid System Builder
    • Mobile Systems >
      • The Minimalist (great for small vans and cars)
      • The Classic 400 Watt (RV's, Vans, Buses)
      • 400 Watt w/ Alternator Charging
      • The Off Grid King (Power Anything!)
  • Solar Batteries
    • 48V Server Rack LiFePO4
    • 48V Vertical Mount LiFePO4
    • 12V Lithium Batteries
    • Raw Cell DIY Batteries >
      • Raw LiFePO4 Cells
      • BMS
    • Battery Capacity Testers
  • Solar Components
    • 50-250W Solar Panels
    • 300W+ Solar Panels
    • Ground Mount Solar Racking
    • Inverters
    • Solar Charge Controllers
    • Battery Chargers
    • Wire and Connectors
    • Fuses and Circuit Breakers
    • Tools
    • Battery Monitors
    • Automatic Transfer Switches
    • Battery Isolators
    • Solar Friendly Air Conditioners
    • 12v Fridges
  • Free Solar eBook
  • Plug-N-Play Systems
    • Full Size Systems
    • Ultra Portable Systems
  • Videos
    • Solar Power for Beginners
  • The Forum
  • How to Mount Solar Panels to a Vehicle
  • Contact Me
  • Policies and Disclaimers

Automatic Transfer Switch for Offgrid Solar

​(I make a commission for purchases made through the links below)
Picture
Picture
If you have an off-grid solar power system AND grid power, use this switch to power your devices until the solar battery is low, then it will switch to grid power. This is a great switch to use if you have a stationary RV and wish to use both solar power and grid power. You can also program the cut-off voltage (the battery voltage when it switches to grid power), so that your batteries last a long time. You can also program the reconnect voltage as well. 

Very easy to setup! Run some extension cords to the terminals and plug it into your system. It will turn on when you connect your solar battery to the terminals. It can work with 12/24/48 volt solar power systems

Click here to buy it on amazon.com
Picture

Automatic Transfer switch for Generator/Shore Power/Inverter (2 inputs only) for RV's

Picture
Picture
Picture
Picture
Not as sophisticated or dedicated to solar as the last one, but you can hook up multiple inputs. Lots of options here!
  • Can handle 2 sources of 30 amps at one time
  • Made for use with inverter, shore power or generators
  • Delay switch for use with generators
  • Comes with knockouts for easy and professional installation
  • Single relay

Click Here for a cheap price

Manual Transfer Switch for Solar Systems

Picture
This switch is technically automatic, but it will only kick back to grid power when you turn the inverter off. So its only semi-automatic, unless you can manually set the disconnect threshold on your inverter, and the reconnect voltage. If you can, you can use this. If you want to save time, use the one I mentioned at the top of this page.

Click here for a cheap price

Copyright  Prowse Publications LLC © 2025
Prowse Publications LLC (www.mobile-solarpower.com) is a participant in the Amazon Services LLC Associates Program,
​an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com
I make a commission for sales made through affiliate links posted on this website
  • Home
  • DIY Solar Packages
    • Handtruck System Builder
    • Off-grid System Builder
    • Hybrid System Builder
    • Mobile Systems >
      • The Minimalist (great for small vans and cars)
      • The Classic 400 Watt (RV's, Vans, Buses)
      • 400 Watt w/ Alternator Charging
      • The Off Grid King (Power Anything!)
  • Solar Batteries
    • 48V Server Rack LiFePO4
    • 48V Vertical Mount LiFePO4
    • 12V Lithium Batteries
    • Raw Cell DIY Batteries >
      • Raw LiFePO4 Cells
      • BMS
    • Battery Capacity Testers
  • Solar Components
    • 50-250W Solar Panels
    • 300W+ Solar Panels
    • Ground Mount Solar Racking
    • Inverters
    • Solar Charge Controllers
    • Battery Chargers
    • Wire and Connectors
    • Fuses and Circuit Breakers
    • Tools
    • Battery Monitors
    • Automatic Transfer Switches
    • Battery Isolators
    • Solar Friendly Air Conditioners
    • 12v Fridges
  • Free Solar eBook
  • Plug-N-Play Systems
    • Full Size Systems
    • Ultra Portable Systems
  • Videos
    • Solar Power for Beginners
  • The Forum
  • How to Mount Solar Panels to a Vehicle
  • Contact Me
  • Policies and Disclaimers