3RT2023-1AN22

The 3RT2023-1AN22 is a Siemens SIRIUS S0 frame electromagnetic contactor. The coil is AC220V and can operate at 50Hz and 60Hz. The auxiliary contact is a single normally closed (1NC) configuration. The main circuit is AC-3 rated at 9A, 4kW/400V, suitable for simple control circuits requiring only a single stop interlock or power failure signal.

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Siemens 3RT2023-1AN22 Single Normally Closed Contact Electromagnetic Contactor AC220V 1NC

Product Positioning

The 3RT2023-1AN22, like its counterpart AN24, uses an AC220V, 50/60Hz dual-frequency coil, but its auxiliary contact configuration differs significantly: the AN22 has only one built-in normally closed (NC) instantaneous contact, instead of the more common 1NO+1NC or 2NO+2NC combination. This single normally closed contact design is common in applications that only require a single "power off" or "interlock stop" signal, such as as part of a safety interlock circuit, or when used with a PLC to monitor whether the contactor has opened. The main circuit maintains the standard AC-3 rated current of 9A and rated power of 4kW/400V for the 3RT2023 series, with both main and auxiliary circuits using screw terminals. Before selecting this model, it is recommended to confirm whether the control logic requires only a single normally closed signal to avoid confusion with multi-contact versions.

Core Product Advantages and Features

AC220V Dual-Frequency Coil

The coil is compatible with both 50Hz and 60Hz power grids, making it suitable for control panel designs for export or cross-regional use.

Single normally closed (1NC) auxiliary contact

It is equipped with only one set of normally closed instantaneous contacts, which is suitable for simple circuits that simply provide power failure or interlocking stop signals.

AC-3 9A/4kW main circuit

Maintain the standard rating of the 3RT2023 series: 9A current and 4kW power at 400V.

It is recommended to confirm the contact point requirements before selecting a model.

Unlike the 2NO+2NC or 1NO+1NC versions in the same series, it is advisable to check the number of contacts required for the control logic before purchasing.

project	Specification
Rated operating current Ie (AC-3)	9 A (400V)
Rated operating power (AC-3, 400V)	4 kW
Number of poles/frame size	3P, Size S0
Control coil voltage	AC 220V, 50/60Hz dual frequency
Auxiliary contact configuration	1NC (single normally closed, instantaneous)
Terminal blocks	Screw terminals
Mechanical life	10 million cycles (of similar quality)
Rated insulation voltage Ui	690 V
Protection level	IP20 (Front)
Applicable Standards	IEC/EN 60947-4-1

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