Control Switch, AUX, 4NO, Screw Termination, S00 & S0 Compatible
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The 3RH2911-1FA40 is an auxiliary contact block manufactured by SIEMENS. This control switch provides four normally open (4NO) contacts for supplementary switching functions in control circuits. It utilizes screw termination for secure electrical connections and is compatible with S00 and S0 contactor sizes.
This auxiliary contact block is commonly employed to expand the available contacts on a main contactor. It serves to provide additional signaling or interlocking capabilities within industrial control systems and motor starters.