How It Works

After the Guardian home standby system has been installed outside your home or business, the automatic transfer switch is installed next to your main distribution panel.

With an air-cooled system, once you've selected the circuits you want protected, you match those circuits from you main distribution panel to the transfer switch's load center circuits.  Larger generators may protect all circuits with an appropriate transfer switch.

The system monitors incoming voltage from the utility line - around the clock.  When the utility power has been interrupted, the transfer switch senses the problem and signals for the generator to start.

How It Works

(Also See ARP Factoid)


1) Home Standby Generator  2) Utility Meter  3) Main Electrical Panel  4) Automatic Transfer Switch

The automatic transfer switch will then safely close off the utility line and open a new power line from the generator.  Within seconds your home standby system will begin supplying electricity to your pre-selected circuits.

When utility line voltage has returned at a steady state, the transfer switch will re-transfer the electrical load back to the utility source and resume monitoring for subsequent utility loss.