The Siemens 3RH29111XA220MA7 is an auxiliary contact block, classified under Contactors and Starters — specifically the Auxiliary Contacts subcategory. It's the add-on switching element that mounts onto a contactor or starter to provide additional signal or control contacts for the circuit.
Deployment Context
As an auxiliary contact block for Siemens contactors and starters, this part snaps onto the main device in a control panel. It's a standard DIN-rail-mounted component, sized for the panel builder who needs extra N.O. or N.C. contacts without replacing the main contactor.