3RT2023-1AU00

The 3RT2023-1AU00 is a Siemens SIRIUS S0 frame electromagnetic contactor. The coil uses a less common AC240V/50Hz voltage specification. The main circuit is rated AC-3 9A, 4kW/400V, with standard 1NO+1NC auxiliary contacts. It has a mechanical life of 10 million cycles and is suitable for use in special voltage power distribution systems.

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Siemens 3RT2023-1AU00 Special Voltage Coil Electromagnetic Contactor AC240V 9A/4kW

Product Positioning

The 3RT2023-1AU00 belongs to the Siemens SIRIUS 3RT2 series S0 frame electromagnetic contactor. Unlike the common 24V and 230V coil versions in the same series, this model has a coil voltage of AC240V, 50Hz, a holding power of 65VA, and a holding power of 7.6VA. It is suitable for some special power distribution systems or for direct use in existing 240V control circuits, eliminating the additional cost of adding a transformer. The main circuit maintains the consistent AC-3 9A/4kW (400V) level of the 3RT2023 family, and also maintains a 9A rating at 500V and 690V. The auxiliary contacts are 1NO+1NC instantaneous type, with AC-15 reaching 10A at 230V and still having 1A usable flexibility at 690V. Both the main and auxiliary circuits use screw terminals, have a mechanical life of 10 million cycles, and have a 690V insulation voltage and a 6kV impulse withstand voltage, meeting the certification requirements of multiple countries.

Core Product Advantages and Features

AC240V special coil voltage

Unlike common 24V/230V coils, it offers AC240V, 50Hz options, suitable for direct use in control circuits of specific voltage systems.

AC-3 9A/4kW main circuit

At 400V, the rated current is 9A and the power is 4kW. At 690V, the power increases to 7.5kW, while the rated current remains at 9A.

1NO+1NC auxiliary contact

The AC-15 can provide 10A at 230V and still 1A at 690V, offering signal and interlocking flexibility across voltage levels.

Multi-country certification and long lifespan

It has KC, EMC and functional safety related certification documents, a mechanical life of 10 million cycles, and is suitable for use with export-oriented equipment.

project	Specification
Rated operating current Ie (AC-3)	9 A (400V/500V/690V)
Rated operating power (AC-3)	4 kW (400V) / 7.5 kW (690V)
Number of poles/frame size	3P, Size S0
Control coil voltage	AC 240V, 50Hz
Coil holding/holding power	65 VA / 7.6 VA
Auxiliary contact configuration	1NO+1NC (Instantaneous Movement)
Auxiliary contact rated (AC-15, 230V/690V)	10 A / 1 A
External dimensions (height x width x depth)	85 x 45 x 97 mm
Terminal blocks	Screw terminals
Mechanical life	10 million times
Rated insulation voltage Ui	690 V (Pollution Level 3)
Rated impulse withstand voltage Uimp	6 kV
Protection level	IP20 (Front)
Relevant certifications	KC, EMC, and Functional Safety Related Materials

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