Sensata is the established leader in the design and manufacture of sealed relays and contactors. Sealing is critical in preventing contamination from polluting the internal parts of any component. Sensata has developed and uses several sealing technologies to accomplish this task for our products. More important is that these sealing technologies allow Sensata to precisely control the internal switch environment by providing a variety of dielectric medium. This has led to several innovations including special liquid filled relays.

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