Automatic Transfer Switch (ATS) Installation Fishers, IN
The automatic transfer switch is the part that makes backup power automatic. It senses the outage, safely isolates your home from the grid, and switches you to generator power within seconds. We install service-rated and managed-load switches sized to your panel, permitted and inspected.
It's the brain of the system: without an automatic transfer switch, a generator is just a box in the yard. The generator makes the power; the transfer switch decides, safely and automatically, when and how your home uses it.
When the utility drops, the ATS disconnects your home from the grid, signals the generator to start, and moves the house onto generator power within seconds, then reverses it all when utility returns. That grid isolation is what keeps power from back-feeding the lines and protects the Duke Energy and AES Indiana crews working the outage. We size the switch to your panel, pull the permit, and have it inspected.
& why
Whole-home or managed-load?
There's more than one way to switch a home, and we recommend the one that fits your panel and budget from an NEC 220 load calc, with no oversizing. A service-rated switch backs the entire panel at the service entrance, the clean whole-home path. A managed-load switch with a Smart Management Module sheds peak loads so a right-sized generator still covers the home.
And where an older or full panel can't take the switch as-is, it may need a service upgrade or a sub-panel first, which we confirm with the load calc before quoting rather than discovering mid-job.
Grid isolation is a safety system, not just a convenience
The transfer switch ties into your service entrance and must isolate the home from the grid before it energizes on generator power. Done wrong, a generator can back-feed the utility lines and endanger the Duke Energy, AES Indiana, or Anderson Municipal Light & Power crews restoring the outage. That's why it's a permitted, inspected job for a qualified electrician, not a DIY hookup, and we handle the permit and inspection as part of the fixed bid.
It makes backup automatic: it senses the outage, disconnects the home from the grid, starts the generator, and switches the house over within seconds, then back when utility returns.
A whole-home (service-rated) switch backs the entire panel; a managed-load switch sheds big loads at peak so a right-sized generator covers the house. We recommend from your load calc rather than defaulting to the biggest option.
It ties into your service entrance and must isolate the home before energizing, which is critical for safety and for the line workers restoring the grid. It needs a qualified electrician, a permit, and an inspection.
Sometimes. Older or full panels may need a service upgrade or a sub-panel first. We confirm with an NEC 220 load calc before quoting, so there are no surprises.
Every standby system is installed under the National Electrical Code as an optional standby system, with transfer equipment and overcurrent protection sized to spec and to permit.
NFPA 70 (NEC) Article 702Where we work
We're based in Fishers and cover the surrounding Hamilton and Madison County area. When storms take the power out it is usually a Duke Energy or AES Indiana outage; over in Anderson it is Anderson Municipal Light & Power. Pick your city for the local permitting and utility details.
Why homeowners choose Meridian
Tell us about your home.
Send the basics and we'll set up a free on-site assessment, run the load calc, and come back with a transparent, fixed bid, no obligation.
- Free on-site assessment, no obligation
- A real person responds, usually same day
- Authorized Generac dealer · warranty-compliant
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We'll review your details and reach out to set up your free on-site assessment and load calculation. If you would rather talk now, call or text us at (463) 283-5939.