Eaton Cutler-Hammer C321KM30 Mechanical Interlock 326058-757 the LT series is the

the LT series is the appropriate technical selection to ensure proper mass flow and cooling

To be certain

10" WC pressure switch ensures the draft inducer motor is moving sufficient combustion air before allow the ignition sequence to proceed

Broad Compatibility: Engineered for use across a wide range of Carrier 48HCDD and 48HCFD series models

RCW-48 (high water capacity)

Eaton Cutler-Hammer C321KM30 Mechanical Interlock 326058-757 the LT series is theThe Eaton Cutler Hammer C321KM30 Mechanical Interlock is a critical field installable accessory designed for Freedom Series NEMA size 00, 0, 1, and 2 starters and contactors. Engineered for horizontal mounting configurations, this heavy duty mechanical link ensures positive electrical isolation by preventing two opposing contactors from closing simultaneously. This hardware is essential for reversing motor applications and multi source power transfers