Siemens 3RH29111AA01 Auxiliary Switch

Product DescriptionThe SIEMENS 3RH29111AA01 is an auxiliary switch designed to add supplementary contact functionality to compatible contactors and relay assemblies. It mounts directly to a host contactor to provide additional signaling or interlocking contacts in control circuits. Electricians and industrial maintenance technicians install this switch where expanded contact capacity is required without replacing the primary contactor. The unit weighs 0.044 pounds, making it a compact add-on that does not significantly change the footprint of the host device.This auxiliary switch is suited for use in motor control centers, panel boards, and industrial control enclosures where contactors or control relays require additional contact blocks. It is appropriate for both light commercial and industrial applications where reliable status signaling, interlocking, or auxiliary circuit control is needed. The compact dimensions allow installation in tight enclosures where space is limited.Key FeaturesDirect-mount auxiliary switch block for compatible SIEMENS contactors and relaysCompact and lightweight at 0.044 pounds for easy add-on installationProvides supplementary contacts for signaling or interlocking control circuitsPackaged individually, one unit per packDimensions of 4.803 inches x 3.504 inches x 1.496 inches for straightforward fitment verificationCompatibilityDesigned as an OEM-style auxiliary contact block for use with compatible SIEMENS contactors and control relays. Verify host contactor model acceptance of this auxiliary block before installation.Installation NotesInstallation should be performed by a qualified electrician in accordance with NEC requirements and the host contactor manufacturer guidelines. De-energize and lock out the panel or motor control center before attaching or removing any auxiliary contact block. Confirm that all snap-fit or screw-mount connection points are fully seated before restoring power. Do not exceed the contact ratings of the auxiliary switch or the host contactor assembly.Technical SpecificationsWeight: 0.044 poundsLength: 4.803 inchesWidth: 3.504 inchesHeight: 1.496 inchesQuantity per Pack: 1UPC: 66264390984Standard InformationBrand: SIEMENSManufacturer Part Number: 3RH29111AA01