66L085-0388

Series:	6600
Part Status:	Active
Circuit:	SPST-NC
Switching Temperature:	185°F (85°C)
Reset Temperature:	131°F (55°C)
Current Rating - AC:	1A (120V)
Current Rating - DC:	1A (48V)
Tolerance:	±9°F (±5°C)
Switching Cycles:	25K
Termination Style:	PC Pins
Mounting Type:	Through Hole
Package / Case:	8-DIP (0.300", 7.62mm), 4 Leads

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The 66L085-0388 is a temperature sensitive mechanical thermostat, specifically classified under the temperature sensors category. It is utilized to detect and regulate temperature by a mechanical method. Versatile and reliable, the device is designed for comfortable temperature control in residential and commercial heating and air conditioning systems.The 66L085-0388 is a snap action thermostat with a temperature range of 66ºF to 85ºF (19ºC to 29ºC). It consists of a temperature sensing element, a snap action switch, a plastic housing and a protective cap. The device utilizes a bi-metallic sensing element for temperature regulation and a self-resetting thermal switch. It is designed with a large control range to easily allow for different and more advanced temperature settings. The 66L085-0388 also features a solid dielectric spacer-filled housing and large contact gap for better electrical protection and increased safety.The 66L085-0388 works by sensing temperature changes by way of the bi-metallic element. It is either positive temperature coefficient or negative temperature coefficient (PTC or NTC) that allows for accurate temperature measurement. The temperature sensing element expands or contracts when heated or cooled by the environment, which cause it to bend. The bending causes the metal contacts to open or close, thereby activating the snap action switch that is powered by the temperature changes.The snap action switch is a mechanical switch that emits it-self from one position to another with an audible click. It is capable of delivering power to either one or two sets of contacts and activating the heater or cooling system based on either a gain or loss of energy. The protective cap at the end of the 66L085-0388 helps protect the sensor from dust, dirt, and other environmental elements that can affect its performance. It is designed to fit securely over the temperature sensing element and seal it off from the environment without any contact with external air or moisture.The 66L085-0388 is well suited for controlling residential and commercial air conditioning systems, heat pumps, thermostats and other temperature controlled equipment. It is a reliable and efficient temperature sensor and is easy to install and use. Additionally, the snap action switch can be configured for different temperature settings, making it an ideal choice for comfortable temperature regulation in many settings.

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