The Siemens 3RH1911-1LA20-ZW97 is an auxiliary switch block from the SIRIUS 3RH1 series, configured with 2 normally open (2NO) contacts. This is the add-on block that snaps onto the front of a 3RH1 contactor or relay to extend the auxiliary contact count without increasing panel depth — a common integration for control schemes needing extra feedback or interlock signals.
Siemens 3RH1911-1LA20-ZW97 Auxiliary Switch Block, 2NO
MPN3RH1911-1LA20-ZW97
Siemens SIRIUS 3RH1 series auxiliary switch block, 2NO contacts, order code 3RH1911-1LA20-ZW97, lifecycle stage current.
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Independent China distributor & sourcing agent· Listing updated Sep 2026
Product details
Frequently asked questions
What is the description of 3RH1911-1LA20-ZW97?
It is an auxiliary switch block with 2 normally open (2NO) contacts.
Where can I buy 3RH1911-1LA20-ZW97 and get a price?
This part is sourced to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing.
MPN
3RH1911-1LA20-ZW97