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Siemens 3RT2018-2BB44-3MA0 16A Contactor – 24V DC Coil

Siemens 3RT2018-2BB44-3MA0 16A Power Contactor with 24V DC coil.

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ManufacturerSiemens

Part number3RT2018-2BB44-3MA0

Type Power Contactor

AC-3e/AC-3 Rating 16A

Power 7.5 kW / 400 V

Poles 3

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AC-3e/AC-3 rated 16A current 7.5kW power 24V DC coil 2 NO + 2 NC auxiliary contacts Size S00

Product description

The Siemens 3RT2018-2BB44-3MA0 is a 3-pole power contactor designed for AC-3e/AC-3 applications. It features a 16A rating with a power output of 7.5 kW at 400V. This specific model operates on a 24V DC coil and includes 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts. It is equipped with spring-loaded terminals and is in size S00, with a captive auxiliary switch.

This contactor is suitable for motor control and switching in industrial automation, machine building, and control panel applications. Its robust design and reliable performance make it ideal for demanding environments where precise and safe electrical switching is critical.

Source your Siemens 3RT2018-2BB44-3MA0 from Stanlo Automation, a veteran-owned distributor committed to providing quality surplus industrial parts. We ensure competitive pricing and reliable delivery to keep your operations running smoothly.

Technical specifications

Type	Power Contactor
AC-3e/AC-3 Rating	16A
Power	7.5 kW / 400 V
Poles	3
Coil Voltage	24 V DC
Auxiliary Contacts	2 NO + 2 NC
Terminals	Spring-loaded
Size	S00
Captive Auxiliary Switch	Yes

Common applications

Motor control

Industrial automation

Control panels

Machine building

Switching applications

Compatible systems

Compatible with Siemens 3RH21 auxiliary contact blocks and SIRIUS motor protection devices.

Also known as

Siemens 3RT2018 Siemens Contactor S00 3RT2018 Contactor

Replaces / compatible with

This contactor is part of the Siemens 3RT2 series and is designed for direct replacement of similar units within the same series and specifications.

Technical note

Expert tip

The captive auxiliary switch ensures reliable operation and simplifies wiring for essential control feedback signals.

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Frequently asked questions

What is the coil voltage for the Siemens 3RT2018-2BB44-3MA0?

The Siemens 3RT2018-2BB44-3MA0 power contactor is equipped with a 24V DC coil. This allows for efficient and reliable operation in DC control circuits.