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Siemens 3RA2335-8XB30-1AG2 — Motor Starters

Siemens 3RA2335-8XB30-1AG2 SIRIUS Reversing Contactor

MPN3RA2335-8XB30-1AG2
Active

Siemens SIRIUS reversing contactor assembly, 3RA2335-8XB30-1AG2, Size S2, 18.5 kW at 400 V AC-3, 40 A at 480 V, screw-type terminals, screw and snap-on mounting onto 35 mm DIN rail.

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

Specifications

3RA2335-8XB30-1AG2 — Identification
ParameterValue
Product designationReversing contactor assembly
Main circuit poles3
BrandSIRIUS
Reference designation (IEC 81346-2)Q
3RA2335-8XB30-1AG2 — Ratings & Performance
ParameterValue
Rated motor power at 400 V18.5 kW
Rated motor power at 460/480 V (hp)30 hp
Rated motor power at 575/600 V (hp)40 hp
Rated current at 480 V40 A
Rated current at 600 V41 A
3RA2335-8XB30-1AG2 — Contacts & Control
ParameterValue
Rated voltage range at 50 Hz110 V
Control supply voltage typeAC
Auxiliary switch extensionYes
3RA2335-8XB30-1AG2 — Communication
ParameterValue
AS-Interface protocol supportNo
3RA2335-8XB30-1AG2 — Mechanical & Connection
ParameterValue
Main contact conductor range (AWG)2x (18 ... 2), 1x (18 ... 1)
Mounting / fastening methodscrew and snap-on mounting onto 35 mm standard mounting rail
Mounting position+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface
Width120 mm
Height141 mm
Depth130 mm
3RA2335-8XB30-1AG2 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C

Product details

Motor reversing in a 130 mm envelope

The 3RA2335-8XB30-1AG2: The 130 mm depth and 141 mm height fit standard 600 mm deep enclosures with clearance for the gland plate; the 120 mm width leaves room alongside other SIRIUS S2 devices on the same DIN rail.

Mounting position and wiring flexibility

Both use screw-type terminals — no special crimp tool needed for field wiring.

Shock tolerance and thermal limits

Withstands 18.5g at 5 ms and 11.6g at 10 ms — rated for the shock profile typical of conveyor transfer stations and press applications where the contactor sees intermittent jolts. The 10 mm clearance required on all sides except the back (0 mm) ensures convection cooling in a closed panel.

MPN
3RA2335-8XB30-1AG2