The Siemens 3RH1911-1MA11-ZW98 is an auxiliary switch block with a 1NO+1NC contact configuration. It snaps onto the side of a contactor or relay in the SIRIUS 3R family, adding signal feedback or interlocking contacts without extra panel wiring.
Siemens 3RH1911-1MA11-ZW98 Auxiliary Switch Block, 1NO+1NC
MPN3RH1911-1MA11-ZW98
Siemens 3RH1911-1MA11-ZW98 auxiliary switch block, 1NO+1NC, lifecycle stage current.
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
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Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Product details
Frequently asked questions
What is the contact configuration of this auxiliary switch block?
It is a 1NO+1NC configuration — one normally open and one normally closed contact.
MPN
3RH1911-1MA11-ZW98