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Siemens 3TX4010-2A 1NO Auxiliary Contact Block

Siemens 3TX4010-2A 1 NO Auxiliary Contact Block

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ManufacturerSiemens

Part number3TX4010-2A

Contact Configuration 1 NO

Mounting Type Snap-on

Manufacturer Siemens

Series SIRIUS

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1 Normally Open (NO) Contact Snap-on Mounting For Siemens Contactors Enhances Control and Signaling IEC Standards Compliant

Product description

The Siemens 3TX4010-2A is an auxiliary contact block designed for snap-on mounting to Siemens contactors. It provides a single normally open (1 NO) contact, enhancing the control and signaling capabilities of the main contactor. This block is suitable for applications where a switch position indicator is not needed.

This auxiliary contact block is crucial for expanding the functionality of motor starters and control systems. It enables additional interlocking, status feedback, or alarm functions. The snap-on design allows for easy integration with compatible Siemens contactors, simplifying installation and maintenance in industrial environments.

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Technical specifications

Contact Configuration	1 NO
Mounting Type	Snap-on
Manufacturer	Siemens
Series	SIRIUS
For Use With	Contactors without position indicator

Common applications

Motor Starters

Control Panels

Automation Systems

Interlocking Circuits

PLC Integration

Compatible systems

Compatible with Siemens contactors that support snap-on auxiliary contact blocks.

Also known as

Siemens 1 NO Auxiliary Contact Block Siemens Contactor NO Switch

Replaces / compatible with

Designed to be attached to Siemens contactors, this auxiliary contact block adds a normally open contact for expanded control functions.

Technical note

Expert tip

This auxiliary contact block is designed for snap-on mounting and does not have an integrated switch position indicator.

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Frequently asked questions

What is the primary function of the Siemens 3TX4010-2A auxiliary contact block?

The Siemens 3TX4010-2A provides an additional normally open (1 NO) contact that can be used to extend the control logic of a contactor, enabling functions like signaling, interlocking, or status indication.