Carrier HH12ZB190 Auto Limit Switch 150°F-190°F

The Carrier HH12ZB190 Auto Limit Switch is used in HVAC systems to protect the equipment from heat damage and most essentially protect its users from possible dangers arising from excessive heat. This auto-resetting switch works as a thermal system that has a set temperature limit. When the temperature of the equipment rises to 150°F, the switch opens and breaks the circuit and stops the equipment. This action saves a system from producing more heat which is likely to cause more harm to the various system components. When the temperature is below 190°F the switch is turned on and the HVAC system returns to normal operations.

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