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Siemens 3RH1921-1FA04 — Contactors

3RH1921-1FA04

MPN3RH1921-1FA04

Attachable block, 4-pole, 4 NC EN 50005! 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

Ratings & Performance

3RH1921-1FA04 — Ratings & Performance
ParameterValue
Rated value @ 24 V10 A
Rated value @ 60 V4.7 A
Rated value @ 110 V3 A
Rated value @ 220 V1.2 A

Contacts & Poles

3RH1921-1FA04 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)

Connection & Mounting

3RH1921-1FA04 — Connection & Mounting
ParameterValue
Mounting methodsnap-on mounting

Environmental

3RH1921-1FA04 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C

Mechanical

3RH1921-1FA04 — Mechanical
ParameterValue
Width44 mm
Height38 mm
Depth51 mm
MPN
3RH1921-1FA04