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Siemens 3RH1921-2TA11-Z X92 — Contactors

3RH1921-2TA11-Z X92 Auxiliary Switch Block, 1 NO + 1 NC, Act

MPN3RH1921-2TA11-Z X92
Active

Siemens auxiliary switch block, 1 NO + 1 NC, EN 50005, lateral spring-loaded connection, for motor contactors, 4-pole multi-unit packaging = 46 units.

StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Specifications

3RH1921-2TA11-Z X92 — Specifications
ParameterValue
Group codeR711
Product group3729
Product classA: Standard product which is a stock item could be returned within the returns guidelines/period.
SeriesOrdering Data Overview
Export control regulationsAL : N / ECCN : N
Compliance with the substance restrictions according to RoHS directiveSince: 01-07-06

Product details

The 3RH1921-2TA11-Z X92 is an auxiliary switch block that adds one normally-open and one normally-closed contact to a motor contactor. It mounts per EN 50005, which means it clips onto the contactor's front or side without extra hardware — a standard interface across the SIRIUS family.

RoHS compliant since July 2006, with REACH candidate-list information available on request. Packaged in multi-unit quantities of 46 pieces per carton, individual unit dimensions are 73 x 70 x 15 mm — small enough to keep a handful on the shelf for line-down spares without eating up bin space.

Integration notes

Mounts onto SIRIUS contactors per EN 50005. The block sits flush against the contactor body, adding no width beyond the contactor envelope. Spring-loaded terminals are rated for the contactor's auxiliary circuit; no separate fuse needed for the signal side. Wire the NO and NC as dry contacts — the block doesn't draw coil current, it just mirrors the contactor's armature position.

Frequently asked questions

What is the group code and product group for this item?

Group code R711, product group 3729. These are internal Siemens classification codes used for catalog sorting and cross-reference lookups.

MPN
3RH1921-2TA11-Z X92