The Eaton Cutler-Hammer C321KM12 Mechanical Interlock is a Size 2 interlock accessory in the C321KM family. The corresponding Size 0–1 version is C321KM1, making C321KM12 the Size 2 variant. As a mechanical interlock, it is designed for use with Eaton Cutler-Hammer equipment within the C321KM line. This model provides the interlock function specific to the Size 2 configuration of the C321KM series.
