The Honeywell 4TL1-3D is a rugged, military-qualified toggle switch from the TL Series. It offers 4 pole, 2 position switching with screw terminals and a locking lever for secure operation. Designed to withstand harsh environments, it features environment-proof sealing and a wide temperature range (-65°C to 71°C). Common applications include industrial machinery, military and commercial aviation, construction equipment, and test instruments. The step-design case helps prevent shorting, and it is UL recognized, CSA certified, and CE approved.