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Siemens 3RA2327-8XB30-1AG2 — Motor Starters

Siemens 3RA2327-8XB30-1AG2 SIRIUS Reversing Contactor

MPN3RA2327-8XB30-1AG2
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Siemens SIRIUS 3RA2327-8XB30-1AG2 reversing contactor assembly, size S0, 15 kW at 400 V AC-3, 27 A at 480/600 V, screw terminals, DIN rail mount.

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

Specifications

3RA2327-8XB30-1AG2 — Identification
ParameterValue
Product designationReversing contactor assembly
Main circuit poles3
BrandSIRIUS
Reference designation (IEC 81346-2)Q
3RA2327-8XB30-1AG2 — Ratings & Performance
ParameterValue
Rated motor power at 400 V15 kW
Rated voltage at AC-3, max.690 V
Rated motor power at 460/480 V (hp)20 hp
Rated motor power at 575/600 V (hp)25 hp
Rated current at 480 V27 A
Rated current at 600 V27 A
3RA2327-8XB30-1AG2 — Contacts & Control
ParameterValue
Rated voltage range at 50 Hz110 V
Control supply voltage typeAC
Auxiliary switch extensionYes
3RA2327-8XB30-1AG2 — Communication
ParameterValue
AS-Interface protocol supportNo
3RA2327-8XB30-1AG2 — Mechanical & Connection
ParameterValue
Main contact conductor range (AWG)2x (16 ... 12), 2x (14 ... 8)
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
Width90 mm
Height101 mm
Depth97 mm
3RA2327-8XB30-1AG2 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C

Product details

SIRIUS reversing contactor assembly — size S0, 15 kW at 400 V

The 3RA2327-8XB30-1AG2: The assembly includes one supplied contactor, model 3RT2027-1AG20, per direction of rotation.

Mounting, wiring, and environmental limits

Envelope dimensions are 101 mm height, 90 mm width, and 97 mm depth — measure the panel cutout before committing. Both main and coil terminations are screw-type terminals. The assembly withstands shock: 13.5 g / 5 ms and 8.3 g / 10 ms on AC, 15 g / 5 ms and 10 g / 10 ms on DC. Clearance distances for ventilation and arc: 6 mm upwards, 6 mm forwards, 0 mm backwards, 6 mm downwards, 6 mm at the side.

Duty ratings and mechanical endurance

Maximum switching frequency in AC-3 and AC-3e duty is 750 operations per hour. Mechanical life of the contactor is typical 10,000,000 operations. The assembly includes 2 instantaneous auxiliary contacts. These matter when sizing upstream contactors or calculating total harmonic draw in a multi-motor panel.

Frequently asked questions

What is the motor power rating of 3RA2327-8XB30-1AG2 at 400 V?

At 400 V AC-3 duty, the reversing contactor assembly is rated for 15 kW motor power. At 690 V the rating increases to 18.5 kW.

MPN
3RA2327-8XB30-1AG2