In harsh dirty environments, build up of dirt and grim on the viewing window can severely inhibit a clear view of the switch poles contacts, hence rendering useless the concept of "Visual confirmation" of switch operation. If care is not taken, attempting to wipe a dirty window clean simply makes the problem worse !

Koenigs Visual Isolators have the option of a spring loaded, full 316 Stainless Steel window flap, to help prevent build up on the window.

The 316 Stainless Steel, internally spring loaded window flap hinges are designed and manufactured by C & C Industries.

Window Flaps are available for all viewing window sizes in the Koenigs Isolator range.