KLIXON? 4344 Series Hermetic Half-inch Thermostat is ideal for commercial applications in harsh environments, or where long life and repeatability are crucial. It uses a snap-acting bi-metallic disc housed in a hermetic package to achieve crisp, positive, and repeatable switching action over a long cycle life. Typical applications for KLIXON? 4344 series thermostats include submersible pump motor protection, fire suppression equipment, hazardous duty motors, marine engine heaters, heated drain valves, semiconductor cryogenic pumps, medial x-ray equipment, incubators, and airport lighting. New designs are available with stainless steel external components and can be packaged with wire leads, multiple different mounting brackets/studs/straps, and also into an immersion probe. Our most common mounting configurations are depicted in the following pages. Please consult Sensata for special requests.