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Siemens 3RT2018-1FB42 Power Contactor — 16A 7.5kW 24V DC

Siemens 3RT2018-1FB42 3-pole power contactor with diode.

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ManufacturerSiemens

Part number3RT2018-1FB42

Type Power Contactor

AC-3e/AC-3 Rating 16 A

kW Rating 7.5 kW at 400 V

Poles 3

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AC-3e/AC-3 rated 16A current 7.5kW power 24V DC coil with diode 1 NC auxiliary contact Screw terminals Size S00

Product description

The Siemens 3RT2018-1FB42 is a 3-pole power contactor for AC-3e/AC-3 applications, rated at 16A and 7.5kW (400V). It includes a 24V DC coil with an integrated diode for surge suppression, a 1 NC auxiliary contact, and screw terminals. This is a Size S00 contactor.

This contactor is well-suited for motor control and switching operations in various industrial automation settings. Applications include conveyor systems, pump controls, and general machinery where a normally closed auxiliary contact is required.

Source your industrial automation needs from Stanlo Automation, a veteran-owned distributor specializing in surplus parts. The Siemens 3RT2018-1FB42 is available to help you complete your projects efficiently.

Technical specifications

Type	Power Contactor
AC-3e/AC-3 Rating	16 A
kW Rating	7.5 kW at 400 V
Poles	3
Coil Voltage	24 V DC
Integrated Suppression	Diode
Auxiliary Contacts	1 NC
Terminal Type	Screw
Size	S00

Common applications

Motor control

Automation

Industrial machinery

Conveyor systems

Pump controls

Power distribution

Compatible systems

Siemens 3RT2 series accessories PLC inputs 24V DC control systems

Also known as

Siemens 3RT2018-1FB42 contactor Siemens 24V DC S00 3RT2 series 1NC

Replaces / compatible with

Can replace other Siemens S00 size contactors with 24V DC coils and NC auxiliary contacts. Compatible with standard Siemens accessories.

Technical note

Expert tip

The integrated diode provides coil protection, making it suitable for applications where rapid switching and reliable operation are critical.

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Frequently asked questions

What type of auxiliary contact does the 3RT2018-1FB42 have?

The Siemens 3RT2018-1FB42 features one normally closed (NC) auxiliary contact. This is in addition to the main power poles.