The Importance of a Transfer Switch When Connecting a Backup Generator to an Electrical Panel

backup generator electrical panel

Sub-panel automatic transfer switch

When wiring a backup generator to the home, it is important to use a transfer switch. It will allow you to connect the backup generator to the main panel if the utility power is down. Likewise, it will allow you to use the backup generator if utility power is still functioning. You should check the wiring before you install a transfer switch, so that it is safe to use.

An ATS or automatic transfer switch is an electrical device installed on the sub-panel of a backup generator. Unlike the manual transfer switch, an ATS is hardwired to the electrical panel and installed nearby. It solves the problem of backfeeding, or the backflow of electricity, which can cause damage to electrical equipment and create a dangerous environment for service personnel. During a power outage, an automatic transfer switch will automatically switch your circuits from the utility to the generator.

The automatic transfer switch is often included with the backup generator purchase, which can save you money in the future. The installation of the switch is simple and inexpensive, although it does require a new main service panel to meet current building codes. A transfer switch also reduces future service costs, as an electrician does not need to dismantle the existing wiring.

An automatic transfer switch can prevent a power outage and protect your home from damage. An automatic transfer switch can protect your home against back-feeding, which can result in fires or electrocutions of line workers.