Installation Issues with Symmetra LX & 100a Supply
... voltage range is 230v - 240v and ... Taking a voltage of 240v and running the unit on full load the current would be just over the 65A, with 230v it would still be under 70a and we can drop the down to 200v before reaching 80a. The Symmetra LX should be protected by a slow blow Fuse / MCB which would need a sustained overload of over 1.2 times the rated current for about 2 hours to trip the Fuse / MCB, so even if the voltage drops below 200v the extra current shouldn't cause any problem.