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Siemens 3RT2018-1AB01 3-Pole Power Contactor

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ManufacturerSiemens

Part number3RT2018-1AB01

AC-3e/AC-3 Rating 16A, 7.5kW/400V

Poles 3

Coil Voltage 24V AC (50/60 Hz)

Auxiliary Contacts 1 NO

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16A AC-3e/AC-3 rating 7.5kW power at 400V 24V AC coil 1 NO integrated auxiliary contact Screw terminals Compact S00 frame size

Product description

The Siemens 3RT2018-1AB01 is a 3-pole power contactor designed for AC-3e/AC-3 applications, rated for 16A and 7.5kW at 400V. It features a 24V AC coil operating at 50/60 Hz and includes one normally open (NO) auxiliary contact. This contactor utilizes reliable screw terminals and has a compact S00 frame size, making it suitable for space-constrained control cabinets.

This power contactor is ideal for switching 3-phase electric motors, heating systems, and lighting circuits in industrial automation, manufacturing plants, and general machinery. Its robust construction ensures long mechanical life and reliable performance in demanding environments.

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Technical specifications

AC-3e/AC-3 Rating	16A, 7.5kW/400V
Poles	3
Coil Voltage	24V AC (50/60 Hz)
Auxiliary Contacts	1 NO
Terminals	Screw
Frame Size	S00
Mechanical Life	30,000,000 cycles

Common applications

Motor control

Heating systems

Lighting circuits

Industrial automation

Control cabinets

Also known as

SIRIUS 3RT2018-1AB01 Siemens Contactor 16A

Replaces / compatible with

This Siemens 3RT2018-1AB01 is part of the SIRIUS 3RT2 series, offering a direct replacement for many applications requiring a 16A, 24V AC contactor.

Technical note

Expert tip

The S00 frame size offers excellent space-saving benefits in control panel designs.

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Frequently asked questions

What type of auxiliary contact does the Siemens 3RT2018-1AB01 have?

The Siemens 3RT2018-1AB01 power contactor features one normally open (1 NO) integrated auxiliary contact. This contact is useful for signaling or control circuit functions.