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8201-126BX OBSOLETE
- 3PH Line Monitor 50/60Hz-Boxed
The Bard 8201-126BX is an OEM 3-phase line monitor, sometimes listed as a phase monitor, used in Bard wall-mounted HVAC units to help protect the system from damaging power conditions such as phase loss, phase reversal, or improper phase sequence on three-phase supplies. When this control senses an unsafe incoming power situation, it can prevent compressor operation to reduce the risk of nuisance trips and major component damage during startup. If you are troubleshooting repeated compressor lockouts after power events, confirming correct phase rotation, or replacing a failed monitor shown in the unit parts list, 8201-126BX is the correct boxed service replacement for the earlier 8201-126 in many Bard applications, and matching your unit model and wiring diagram is the best way to confirm proper fit.
Official replacement(s):
8201-174BX
- 3PH Line Monitor 50/60Hz-Boxed