4HVS High Performance Hermetic Interlock Switches

The Klixon® 4HVS series of interlock switches utilizes a hermetically sealed snap-acting sine switch to create a high reliability yet cost effective solution. The 4HVS Series was developed for the most severe environments, and the most demanding applications. Ideal for guarding engine compartments, access and maintenance hatches, electrical cabinets, machinery, and industrial equipment. Its explosion-proof design and one-piece steel case construction make it well suited for fuel wetted areas. Its high vibration resistance makes it an ideal choice for ground and air vehicle applications. Our part number building block approach utilizes standard components and provides a wide variety of options while retaining the cost advantage of off-the-shelf devices.



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A world leader and early innovator in mission-critical sensors and controls designed to make the world cleaner, safer and more efficient. You will find these in many applications – anywhere from automotive braking systems to aircraft flight controls. Klixon high precision thermostats and circuit breakers are very reliable with very low weight and compact size for your secure function. 
Mission-critical means products that are essential and difficult to do. You’ll find Sensata Technologies 47,000 unique products in many applications – anywhere from automotive braking systems to aircraft flight controls. 
Sensata devices are in systems that protect people and the environment, so what we do matters. Take pride in knowing Sensata’s technologies improve safety, efficiency and comfort for millions of people every day.