3RT2023-1AP04

The 3RT2023-1AP04 is a Siemens SIRIUS S0 frame electromagnetic contactor. The coil operates at AC230V, 50Hz. The main circuit is rated at 9A and 4kW/400V for AC-3 (up to 40A for AC-1). A key feature is its standard configuration of four auxiliary contacts: 2NO and 2NC, making it suitable for control circuits requiring numerous feedback signals or interlocking points.

Share To

Siemens 3RT2023-1AP04 Dual Auxiliary Contact Electromagnetic Contactor AC230V 2NO+2NC

Product Positioning

The 3RT2023-1AP04 belongs to the Siemens SIRIUS 3RT2023 series S0 frame electromagnetic contactor. Its coil voltage is AC230V, 50Hz, and it shares the same main circuit specifications as the 1AP00 version with the same capacity. The AC-3 rated current is 9A and the rated power is 4kW/400V, while the AC-1 (resistive load) can be increased to 40A/400V. The biggest difference between the two lies in the auxiliary contact configuration: the 1AP04 standard has four sets of instantaneous auxiliary contacts (2NO+2NC), doubling the signal points compared to the single-set 1NO+1NC version. This makes it suitable for control panel designs that need to provide multiple functions such as start feedback, fault signals, and interlock protection simultaneously, reducing the cost and space required for additional auxiliary contact modules. Both the main and auxiliary circuits use screw terminal connections, and the installation and wiring methods are consistent with other models in the series.

Core Product Advantages and Features

2NO+2NC four sets of auxiliary contacts

It has two sets of normally open and two sets of normally closed instantaneous contacts built in at one time, providing twice as many signal points as the standard 1NO+1NC version, eliminating the need for external auxiliary modules.

AC230V coil

The control voltage is AC230V, 50Hz, which corresponds to the common single-phase 230V control circuit in Taiwan, eliminating the need for an additional control transformer.

AC-3 9A/4kW, AC-1 up to 40A

Motor start/stop (AC-3) rated 9A, 4kW/400V; resistive load (AC-1) rated current up to 40A/400V.

Good compatibility within the same series

It shares the same shape and installation method as other coil versions in the 3RT2023 series, which facilitates unified design and material preparation for projects.

project	Specification
Rated operating current Ie (AC-3)	9 A (400V)
Rated operating power (AC-3, 400V)	4 kW
Rated operating current Ie (AC-1, 400V)	40 A
Number of poles/frame size	3P, Size S0
Control coil voltage	AC 230V, 50Hz
Auxiliary contact configuration	2NO+2NC (Instantaneous Movement)
Terminal blocks	Screw terminals
Mechanical life	10 million cycles (of the same series)
Rated insulation voltage Ui	690 V
Protection level	IP20 (Front)
Applicable Standards	IEC/EN 60947-4-1

Recommend

3RT2023-1AR60

The 3RT2023-1AR60 is a Siemens SIRIUS S0 frame electromagnetic contactor with a coil rated at AC 400V, 50Hz (60Hz corresponds to 400-440V). It can be directly driven by the main power supply. The main circuit is rated at AC-3 9A, 4kW/400V. It comes standard with 1 NO + 1 NC auxiliary contacts and is suitable for simplifying the control power supply in large distribution panels.

3RT2023-1AP00

The 3RT2023-1AP00 is the most commonly selected AC230V coil version of the Siemens SIRIUS S0 frame electromagnetic contactor. The main circuit is AC-3 rated at 9A, 4kW/400V, with standard 1NO+1NC auxiliary contacts and screw terminal wiring. All three main contacts are normally open, suitable for direct start/stop control of general three-phase motors.

3RT2023-1AN24

The 3RT2023-1AN24 is a Siemens SIRIUS S0 frame electromagnetic contactor. The coil is AC220V and can simultaneously operate on 50Hz and 60Hz power grids. The main circuit is AC-3 rated at 9A, 4kW/400V, and comes standard with four auxiliary contacts: 2NO+2NC. It is suitable for export machines or control panel designs requiring dual-frequency compatibility and a large number of signal points.