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Customer needs information on the Emergency Break Glass operator. What is UL 4?
Issue:
9001K15 UL 4 Information

Product Line:
Push Buttons and Operators

Environment:
30 mm Push Buttons and Operators

Resolution:
UL 4 means the unit meets environment protection of outdoor use and protects against windblown dust and rain, splashing water and hose-directed water.

Environmental Ratings:
Types K: The Type K (Series H) operators are UL Listed
for use in Types 1, 2, 3, 3R, 4, 6, 12 and 13 flat
surface enclosures.
Type SK: The Type SK operators are UL Listed for use in
Types 1, 2, 3, 3R, 4, 4X, 6, 12 and 13 flat surface
enclosures.

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