SERIES 17000, 18000 THERMOSWITCH®
TEMPERATURE CONTROLLERS
SERIES 11000, 80016 PROTECTIVE WELLS
THERMOSWITCH® controllers control temperatures as low as -100?°F
(-73?°C) and as high as 600?°F (316?°C) with the proven dependability of
over 75 years of service to satisfied customers.
The THERMOSWITCH® controller is a strut-and-tube type thermostat
comprised of two basic parts: the outer shell, made of high-expanding
metal and the strut assembly, made of low-expanding metal.
A pair of electrical contacts is mounted on the strut assembly and
installed in the shell under tension or compression.
Since each end of the strut assembly is mechanically connected to the
ends of the shell, a net change of force is produced on the strut
assembly as the shell expands or contracts with changing temperature.
The temperature at which the contacts ?make??or ?break??can be
regulated by a temperature adjusting sleeve.