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Siemens 3RH1921-2HA31-ZW98 — Contactors

3RH1921-2HA31-ZW98 - Siemens

MPN3RH1921-2HA31-ZW98

Auxiliary switch block, 31, 3 NO + 1 NC, EN 50005 spring-type connection system, for motor contactors, 4-pole Multi-unit packaging = 40 units! Phased-out product! Successor is SIRIUS 3RH2

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RH1921-2HA31-ZW98 — 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
3RH1921-2HA31-ZW98 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1921-2HA31-ZW98 — Connection & Mounting
ParameterValue
Mounting methodsnap-on mounting
3RH1921-2HA31-ZW98 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
3RH1921-2HA31-ZW98 — Mechanical
ParameterValue
Width44 mm
Height38 mm
Depth51 mm
MPN
3RH1921-2HA31-ZW98