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Bard part number 8402-110 is an OEM temperature limit control designed to open the electrical circuit at a preset temperature to protect the unit from overheating and nuisance trips. Commonly referenced as a 120 F limit switch or line break style limit, this safety device helps safeguard heaters, blowers, and other critical components by interrupting power when temperature rises beyond the intended point. When replacing a failed or erratic limit, using the correct Bard 8402-110 helps maintain proper safety operation and dependable cycling, and you should always confirm your exact unit model and wiring diagram so the temperature rating and mounting style match what Bard originally specified.
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