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Bard 8402-193BX - Limit Control 135F-120F

The Bard 8402-193BX limit control is an OEM temperature safety switch used in Bard HVAC equipment to help protect the heater and air handler section from overheating. It is designed to open the circuit at 135 degrees F and reset when temperature drops to 120 degrees F, allowing the unit to return to normal operation after an over-temperature event. This boxed replacement is a good choice when troubleshooting nuisance trips, no-heat complaints, or safety lockouts tied to high temperature conditions, and it is best matched by confirming the part number from your Bard parts list and verifying the sensing style and wiring connections already in your unit before ordering.


  • Technical Specifications
  • Product number: 8402-193BX
  • Manufacturer description: Limit Control 135-120 - Boxed
  • HTS Code: "9032.10.0030"

  • Previous Versions
  • 8402-193 (Obsolete, superseded by 8402-193BX)

$34.00 *

* Orders less than $50 may incure a minimum order fee.

What does the "BX" suffix mean?

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.