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Siemens 3RT2017-2KB42 3-Pole Power Contactor

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ManufacturerSiemens

Part number3RT2017-2KB42

AC-3e/AC-3 Rating 12A, 5.5kW/400V

Poles 3

Coil Voltage 24V DC

Control Voltage Range 0.7-1.25*Uc

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AC-3e/AC-3 rated 12A 5.5kW power at 400V 24V DC coil Integrated suppressor diode 1 NC auxiliary contact Spring-loaded terminals

Product description

The Siemens 3RT2017-2KB42 is a 3-pole power contactor designed for AC-3e/AC-3 applications, rated for 12A and 5.5kW at 400V. It features a 24V DC coil with a control circuit voltage range of 0.7-1.25*Uc, and includes an integrated suppressor diode for surge protection. This contactor is equipped with one normally closed (NC) auxiliary contact and utilizes spring-loaded terminals for secure connections. Its frame size is S00, making it suitable for PLC outputs.

This power contactor is ideal for controlling motors and other industrial loads in a variety of applications. It is commonly used in manufacturing, automation, and control systems where reliable switching is crucial. The integrated suppressor diode and suitability for PLC outputs make it a versatile component for modern industrial setups.

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Technical specifications

AC-3e/AC-3 Rating	12A, 5.5kW/400V
Poles	3
Coil Voltage	24V DC
Control Voltage Range	0.7-1.25*Uc
Auxiliary Contacts	1 NC
Terminals	Spring-loaded
Frame Size	S00
Integrated Suppressor Diode	Yes
PLC Output Compatible	Yes

Common applications

Motor control

Automation systems

PLC outputs

Industrial machinery

Control circuits

Compatible systems

PLC outputs

Also known as

SIRIUS 3RT2017-2KB42 Siemens Contactor 12A S00 Contactor

Replaces / compatible with

This Siemens 3RT2017-2KB42 replaces older Siemens 3RT1017-2KB42 models.

Technical note

Expert tip

The integrated suppressor diode provides effective suppression of transient overvoltages generated by the coil.

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Frequently asked questions

What are the key specifications of the Siemens 3RT2017-2KB42 power contactor?

The Siemens 3RT2017-2KB42 is a 3-pole power contactor with an AC-3e/AC-3 rating of 12A and 5.5kW at 400V. It operates on a 24V DC coil and features a 1 NC auxiliary contact, integrated suppressor diode, and spring-loaded terminals. Its S00 frame size makes it suitable for PLC outputs.