3RT2023-1AG20

The 3RT2023-1AG20 is a Siemens SIRIUS S0 base 3-pole contactor, AC-3 rated 9A, 4kW/400V, 110V AC coil can be used with 50Hz or 60Hz power supply, built-in 1NO+1NC auxiliary contacts, screw terminal wiring.

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Siemens 3RT2023-1AG20 AC contactor 110V AC 1NO+1NC

Product Positioning

The 3RT2023-1AG20 is one of the most common standard combinations in the Siemens SIRIUS 3RT2023 series. It is an S0 frame 3-pole contactor with an AC-3 rated current of 9A, capable of handling a 4kW/400V three-phase motor load, and still possessing some switching capability at 690V. The coil is 110V AC rated and compatible with both 50Hz and 60Hz power supplies. It has built-in 1NO+1NC instantaneous auxiliary contacts, which can be used for basic self-holding, indicating, or interlocking circuits, making it a fairly common entry-level choice for control panel designs.

Core Product Advantages and Features

General-purpose main circuit specifications

The AC-3 is rated at 9A and 4kW/400V, suitable for direct start and stop control of general small three-phase motors.

110V AC dual-frequency coil

The same coil specification can be used for 50Hz or 60Hz power supply environments, which facilitates standardized material preparation.

1NO+1NC auxiliary contact

It has a built-in set of normally open and a set of normally closed instantaneous auxiliary contacts to meet basic self-holding or interlocking requirements.

Screw terminals are easy to maintain

Both the main and auxiliary circuits use screw terminals, making wiring and subsequent maintenance and inspection work relatively intuitive.

project	Specification
Rated usage category	AC-3
Rated current	9 A
Rated power	4 kW / 400V AC
Base size	S0
Number of poles/main contacts	3 poles, 3NO
coil voltage	110V AC, 50/60Hz
Auxiliary contact	1NO + 1NC (built-in instantaneous contact)
Terminal type	Screw terminals
Insulation voltage	690V
Protection level	IP20
Mechanical life	Approximately 10 million operations
Major Certifications	CE, UL, CSA, CCC

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3RT2023-1AF00

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3RT2023-1AD00

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