Depends on the handle you get. All of the handle options on the 194E switches in that brochure are not of the type that can be defeated, because the intended use of those switches is for at-motor disconnect only. They are not supposed to be used as main panel disconnects (unless maybe the disconnect is not being used for line power). The difference is in the difference between a UL508 listed switch, as the 194E Series are, and a disconnect switch that bears a UL98 listing which allows it to be a branch circuit disconnect, which the 194E does NOT.
You can, I believe, order a 194R-HS4 handle mechanism (designed for the 194R disconnects, which CAN be used as main disconnects) and it does have a defeat mechanism on the outside. Then there is an adapter kit to be able to use that with the 194E switches, it's on the bottom of page 36. This is what you get if you order the factory built switches shown on page 31. The problem is, Main Disconnects (UL98) must now also have a means of operating the switch with the door already open without having a tool, referred to as an "NFPA 79 handle" because NFPA 79 was the first place it was required. That handle however is ONLY available in the 194R Series of switches, being that they ARE listed under UL98.
So if your OEM has built control panels where the main disconnects are being used for line power, but they used the 194E switches, they have built something that technically cannot be installed here in the US, unless you ALSO buy and install a UL98 rated disconnect ahead of it, or it is fed with a UL489 listed circuit breaker that is dedicated to that one panel and equipped with a means of locking in the Open (off) position. Even then, many AHJs will still reject it as "not suitable for the intended use".
Any decent panel builder should know all of this, it's in the UL 508A rules.
