Resideo DP2030B5004 Contactor 321702-401 Key Benefits for Technicians: Backflow

Key Benefits for Technicians: Backflow Prevention: High-integrity swing check design stops reverse fluid flow in both hot and cold water applications

This unit is an essential Johnson Controls valve assembly for technicians looking for a drop-in 1

preventing premature failure or tripped breakers often associated with generic alternatives

or white mineral deposits on the collector box surface often indicate a failure

By installing this genuine Copeland 577042101

Resideo DP2030B5004 Contactor 321702-401 Key Benefits for Technicians: BackflowFor high reliability switching in demanding applications, the Resideo DP2030B5004 Contactor is a legacy standard 2 pole 30 amp definite purpose contactor designed for HVACR equipment. Engineered for efficiency and longevity, this unit features silver cadmium oxide contacts to maintain superior conductivity and minimize pitting under heavy induction motor starting loads. The 120V AC coil (50 60 Hz) is built for stable electromagnetic operation across a