EATON E34 series 30.5 mm pushbutton line features the same rugged die cast construction of our 10250T line with an additional 2-layer 100% solid thermosetting cathodic epoxy coating. This coating provides a flat black smooth, consistent, corrosion-resistant surface that has passed a demanding 600 hr salt spray test. (the industry standard for this 4X test requires only 200 hr).