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Siemens 3TX4404-0A Auxiliary Switch Block with Screw Terminals

Siemens Auxiliary Switch Block for Contactors

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ManufacturerSiemens

Part number3TX4404-0A

Part Number 3TX4404-0A

Manufacturer Siemens

Type Auxiliary Switch Block

Terminal Type Screw Terminal

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4 Normally Closed (NC) Contacts Screw Terminals for Secure Connection EN 50011 Compliant Designed for Contactor Relays Robust Construction Reliable Switching

Product description

The Siemens 3TX4404-0A is an auxiliary switch block designed for use with contactor relays, adhering to EN 50011 standards. This unit features screw terminals and is equipped with 4 Normally Closed (NC) contacts, identified by the number 44E.

This auxiliary switch block is crucial for expanding the control and signaling capabilities of contactor relays in industrial automation systems. It is commonly used for status feedback, interlocking circuits, and safety functions in motor control centers and machine control panels.

Stanlo Automation, a veteran-owned surplus parts distributor, provides the Siemens 3TX4404-0A. We offer reliable surplus automation components to ensure your systems are fully functional and efficient.

Technical specifications

Part Number	3TX4404-0A
Manufacturer	Siemens
Type	Auxiliary Switch Block
Terminal Type	Screw Terminal
Contacts	4 NC (Normally Closed)
Standard	EN 50011
Ident. No.	44E

Common applications

Motor Control Centers

Machine Safety Interlocks

Control Panel Wiring

Status Feedback

Automation Circuits

Industrial Control

Compatible systems

Siemens contactor relays that support EN 50011 auxiliary mounting and have the necessary mechanical provisions.

Also known as

Siemens Contactor Auxiliary Switch 3TX4404-0A Switch Block Siemens 4 NC Auxiliary Switch

Replaces / compatible with

This auxiliary switch block is designed to be mounted on Siemens contactor relays. It is compatible with contactor relays that support EN 50011 auxiliary switch configurations.

Technical note

Expert tip

Ensure the contactor relay is de-energized before installing or removing the 3TX4404-0A auxiliary switch block to prevent electrical hazards.

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Frequently asked questions

What is the contact configuration and terminal type of the Siemens 3TX4404-0A?

The Siemens 3TX4404-0A auxiliary switch block features 4 Normally Closed (NC) contacts and utilizes screw terminals for secure wiring connections. It is compliant with EN 50011 standards.