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Siemens 3RA2434-8XF32-1AC2 — Motor Starters

Siemens 3RA2434-8XF32-1AC2 SIRIUS Star-Delta Starter, 22 kW

MPN3RA2434-8XF32-1AC2
Active

Siemens SIRIUS 3RA2434-8XF32-1AC2 contactor assembly for star-delta (wye-delta) start, 22 kW at 400 V AC-3, Size S2, screw-type terminals.

Siemens 3RA2434-8XF32-1AC2 datasheet (PDF)
StockContact for availability
Lead time3-5 Days wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Identification

3RA2434-8XF32-1AC2 — Identification
ParameterValue
Product designationContactor assembly for star-delta (wye-delta) start
Main circuit poles3
BrandSIRIUS
Reference designation (IEC 81346-2)Q

Ratings & Performance

3RA2434-8XF32-1AC2 — Ratings & Performance
ParameterValue
Rated motor power at 400 V22 kW
Rated voltage at AC-3, max.690 V

Contacts & Control

3RA2434-8XF32-1AC2 — Contacts & Control
ParameterValue
Rated voltage range at 50 Hz24 V
Control supply voltage typeAC
Auxiliary switch extensionNo

Communication

3RA2434-8XF32-1AC2 — Communication
ParameterValue
AS-Interface protocol supportNo

Mechanical & Connection

3RA2434-8XF32-1AC2 — Mechanical & Connection
ParameterValue
Mounting / fastening methodscrew fixing
Mounting position+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface
Width177.5 mm
Height142 mm
Depth223 mm

Environmental

3RA2434-8XF32-1AC2 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C

Product details

Star-delta contactor assembly, 22 kW

The Siemens 3RA2434-8XF32-1AC2 is a SIRIUS contactor assembly purpose-built for star-delta (wye-delta) motor starting — a method that cuts inrush current by roughly one-third during the transition to run mode. The assembly ships with three contactors: two 3RT2035-1AC20 units for the line and star legs, and one 3RT2026-1AC20 for the delta leg — plus the RS assembly kit 3RA2933-2C for the interconnecting buswork.

Mounting and wiring flexibility

Fastening is by screw fixing; the assembly measures 177.5 mm wide by 142 mm high by 223 mm deep, so plan for that depth clearance behind the panel door.

Frequently asked questions

How can I get pricing and availability for 3RA2434-8XF32-1AC2?

Submit an RFQ through the storefront.

MPN
3RA2434-8XF32-1AC2