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Bard 8201-066BX - SPST normally open relay

Bard 8201-066BX is an OEM SPST normally open relay, boxed, rated 3A at 277V, used in Bard wall mount HVAC equipment to switch a load on and off when the control circuit calls for operation. If your unit has intermittent operation, no response to a call, or burnt relay contacts, replacing this relay helps restore dependable electrical switching while maintaining correct fit and wiring compatibility with the original Bard control design. Always confirm contact style and coil/control voltage against your unit wiring diagram or service manual before ordering, since relays with similar ratings can be wired differently across model families.


  • Technical Specifications
  • Product number: 8201-066BX
  • Manufacturer description: Relay, SPST (NO) - Boxed 3A@277V
  • Weight: 0.200 lbs
  • HTS Code: "8536.49.0040"

  • Previous Versions
  • 8201-066 (Obsolete, superseded by 8201-066BX)

$32.00 *

* 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.