341-BLT-12K - Edwards Signaling 341-B DPST LED MAG T 18/4SJTO- This small, highly defeat resistant switch has Kynar housing which makes it ideal for wash-down and chemical environments. 341 Series Information Kynar Housing Ideal for Wash?Down and Chemical Environments UL, CSA, TUV Approved IP67 Rated Applications: Requiring Highly Defeat Resistant Switches, Washdown Environments, Packaging Machinery, Pharmaceutical Equipment, Semiconductor Equipment, Food Processing Machinery