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Bard 8406-110 - Door Interlock Switch

The Bard 8406-110 Door Interlock Switch is an OEM safety switch used on select Bard wall mount HVAC units to interrupt the electrical circuit when an access door or service panel is opened, helping prevent the unit from running during maintenance and reducing the chance of accidental startup. This replacement interlock is a direct-fit Bard part intended to restore proper cabinet safety operation and dependable unit control, so technicians can service the equipment with the factory-designed safeguards in place. Verify compatibility by matching the 8406-110 part number to your unit model and serial information before ordering.


  • Technical Specifications
  • Product number: 8406-110
  • Manufacturer description: Door Interlock Switch
  • HTS Code: "8536.50.9065"

$29.00 *

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