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Siemens 3RH1921-1EA20-ZX90 — Contactors

3RH1921-1EA20-ZX90 - Siemens

MPN3RH1921-1EA20-ZX90
Active

first lateral auxiliary switch 2 NO contacts, screw terminal, for contactors 3RT1 Reusable packaging = 144 units

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

Identification

3RH1921-1EA20-ZX90 — Identification
ParameterValue
Contactor frame sizeS0

Ratings & Performance

3RH1921-1EA20-ZX90 — 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

3RH1921-1EA20-ZX90 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)

Connection & Mounting

3RH1921-1EA20-ZX90 — Connection & Mounting
ParameterValue
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting methodsnap-on mounting

Environmental

3RH1921-1EA20-ZX90 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C

Mechanical

3RH1921-1EA20-ZX90 — Mechanical
ParameterValue
Width10 mm
Height80 mm
Depth71 mm
MPN
3RH1921-1EA20-ZX90