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Bard 8402-106BX is an OEM limit control (L200-30) used as a safety temperature switch in Bard HVAC equipment, opening the control circuit when abnormal heat conditions are detected to help protect critical components and prevent nuisance damage from overheating. This style of high limit control is commonly used in the unit air stream or heat section as part of the factory safety chain, so correct match-up matters for reliable operation and proper shutdown behavior. If you are replacing a failed limit that is tripping early, stuck open, or causing intermittent lockouts, confirm the L200-30 rating and the exact Bard part number 8402-106BX against your model and serial tag or service literature before ordering.
* 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.