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Ease of Installation: Direct-coupled mounting and a simple polarity-neutral 3-wire connection reduce time on the job site
Common Questions How do I identify if my blower wheel needs replacement
Its epoxy-encapsulated design provides superior resistance to moisture and excellent heat dissipation
The output signal is determined by the position of the internal selection jumpers located on the PCB
Markel 05460702 Switch 320720-756 Ease of Installation: Direct-coupled mountingThe Markel 05460702 is a field proven air flow switch designed to provide precise differential pressure monitoring in heating and cooling applications. As the direct replacement for the legacy MRH 1505 DO, this switch is a critical safety component that confirms positive airflow within a duct before allowing heat kits or compressors to engage. Engineered for low pressure environments, it features a fixed setpoint of 0. 5" WC (water column), ensuring