Main Breaker Question

[ndegaris (Neil DeGaris, CMI KY License # 102167)]

What is the button next to main breaker? or is this a secondary tie down for back fed breaker?

[rlewis5 (Roy Lewis, CERTIFIED MASTER INSPECTOR RETIRED)]

Not a button. It is just a retainer post .
WOW!

[rmeier2 (Robert Meier)]

@ndegaris

What is the button next to main breaker? or is this a secondary tie down for back fed breaker?

Often back fed breakers are field installed, that’s looks like a factory set up.

[mbrooke (Martin Brooke)]

Retainer.