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Siemens 3RH1921-2FJ31 — Contactors

3RH1921-2FJ31

MPN3RH1921-2FJ31

Solid-state-compatible auxiliary switch 1 NO + 1 NC, solid-state compatible 2 NO conventional Size S0... S12 front, spring type! Phased-out product! Successor is SIRIUS 3RH2

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

Contacts & Poles

3RH1921-2FJ31 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)

Connection & Mounting

3RH1921-2FJ31 — Connection & Mounting
ParameterValue
Mounting methodsnap-on mounting

Environmental

3RH1921-2FJ31 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C

Mechanical

3RH1921-2FJ31 — Mechanical
ParameterValue
Width44 mm
Height38 mm
Depth51 mm
MPN
3RH1921-2FJ31