SPARXX GENERATOR CONTROL BOX (GCB)
A simple automatic generator controller — built for DIY homeowners and professional electricians.
Automatically starts your compatible generator after a power outage and transfers your selected essential electrical loads — then flips back to the grid when power returns.
What's included
Complete package.
- Indoor Automatic Generator Control box GCB.
- Outdoor inlet box with universal 50-Amp generator plug.
- 1430 240 volt 30 amp twist-lock receptacle. Powers heat, cooling, and battery chargers.
- Two-wire receptacle. For automatic generator start.
How it works
Automatic. Always on.
Automatic outage detection
Transfers generator power from utility to generator if power outage occurs.
Two-wire generator start control
Automatically starts compatible generators during a power outage.
Off grid Solar system-friendly control
Uses excess solar production to charge battery or power home circuits every day of the month.
DIY or pro-installed
Designed for homeowners who want simple automatic backup power — great for licensed electricians to with an install option and a way to earn a passive cut through referrals.
Inside the box
Built with simple components.
Every Sparxx GCB is wired with relays, terminal blocks, and timers — then paired with a 50-Amp generator inlet for a clean, code-friendly install.
Generator inlet
The inlet that plugs it all together.
Every GCB package ships with a weatherproof generator inlet — the outdoor receptacle your generator cord locks into — plus the two-wire connector for automatic generator start.
Ready to connect your home to an automatic controller?
Apply to rent a Sparxx portable generator and include the GCB package installation.