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Bard part number 8402-211BX is an OEM high-limit temperature control (limit control) used to protect Bard wall-mount HVAC equipment from overheating conditions. This single-pole control is designed to open the safety circuit at its rated limit (L210 with an 8.0 differential per the manufacturer description), helping prevent nuisance damage to heaters and internal components when airflow is restricted or temperatures rise beyond normal operating range. Because limit controls are safety devices, match the rating and mounting style to your unit model and installation, and verify the correct part number against the Bard parts list or service manual before ordering to ensure proper fit and reliable operation.
* Orders less than $50 may incure a minimum order fee.
Bard uses suffixes like "BX" to manage parts internally. These do not change the physical form or function of the part.
A part number ending in "BX" simply means it is packaged in a box for shipping, rather than for internal assembly use.
Example: 8406-142BX is physically identical to 8406-142.