3RT2018-1AP01

Siemens 3RT2018-1AP01 Electromagnetic Contactor, 230V AC Coil, 1NO Auxiliary Contact
Siemens 3RT2018-1AP01 Electromagnetic Contactor, 230V AC Coil, 1NO Auxiliary Contact

The Siemens 3RT2018-1AP01 features a 230V AC coil design, allowing it to be powered directly from the main power supply without the need for a separate 24V control power supply. It has a built-in set of normally open auxiliary contacts, AC-3 16A/7.5kW, an S00 frame, and an overall size of only 45×58×73mm.

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Product Introduction
Product Positioning

The 3RT2018-1AP01 is the AC version of the SIRIUS 3RT2018 series with a coil voltage of 230V AC and 50/60Hz dual-frequency compatibility. It features a built-in normally open instantaneous auxiliary contact for status feedback or interlocking control. The advantage of this specification is that many older switchboards or single-phase 230V control circuits no longer require a separate 24V DC power supply to directly drive the contactor coil, reducing switchboard costs and wiring complexity. The main circuit maintains the AC-3 7.5kW/400V, 16A rating, with a mechanical life of 30 million cycles and an electrical life of approximately 200,000 cycles under AC-4, 5.5A/400V conditions. It is suitable for applications involving frequent start-stop motors such as small pumps, fans, and conveyor belts.

Core Product Advantages and Features
230V AC dual-frequency coil
Supports 50Hz and 60Hz power supplies, with an operating range of 0.8~1.1 times the rated voltage (50Hz), suitable for export machines and domestic and international power supply environments.
1 set of normally open auxiliary contacts
Built-in 1NO instantaneous auxiliary contact, rated at 10A (AC-12/AC-15), can be used as a running indicator or PLC feedback signal.
No additional 24V power supply required
The coil can directly use the 230V control power supply, simplifying the design of the distribution box and reducing the cost of components and wiring.
S00 small frame, high protection level
With dimensions of 45×58×73mm, front protection rating of IP20, rated insulation of 690V, and impulse withstand of 6kV, it is suitable for dense panel spaces.
project Specification
model 3RT2018-1AP01
Coil voltage 230V AC, 50/60Hz
Auxiliary contact 1 NO (Normally Open, 10A)
Rated operating current (AC-3) 16 A
Rated power (AC-3, 400V) 7.5 kW
Extreme number 3P
Mounting Frame S00
Wiring method Screw terminals
External dimensions (width × height × depth) 45×58×73 mm
weight Approximately 0.235 kg
Mechanical life 30 million operation cycles
Electrical life (AC-4, 5.5A/400V) Approximately 200,000 times
Rated insulation voltage 690V
Protection level IP20 (front)
Operating ambient temperature -25°C ~ +60°C (Storage temperature: -55°C ~ +80°C)