Home › Manufacturers › Siemens › 3TX4440-0A

Siemens

Siemens Auxiliary Switch Block for Contactors (4 NO)

Siemens auxiliary switch block with 4 NO contacts for contactor relays.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

In Stock — Ready to Ship

ManufacturerSiemens

Part number3TX4440-0A

Type Auxiliary Switch Block

Terminal Type Screw Terminal

Compliance EN 50011

Contacts 4 NO (Normally Open)

Get a price for 3TX4440-0A

Response within 1 business hour

🛡

12-month warranty

All units tested

⚡

Same-day dispatch

Order by 2pm CST

🌐

Worldwide delivery

US, EU, Asia, Middle East

🎖

Veteran-owned

CAGE: 9NK75

4 Normally Open (NO) contacts Screw terminal connections EN 50011 compliant For contactor relays Expands contactor functionality

Product description

The Siemens 3TX4440-0A is an auxiliary switch block designed for use with contactor relays, compliant with EN 50011 standards. It features screw terminals for secure connections and is equipped with 4 normally open (NO) contacts, identified by the code 80E. This block is specifically designed to expand the functionality of Siemens contactors.

This auxiliary switch block is commonly employed in motor control circuits, control panels, and safety systems where additional signaling or interlocking functions are required. The 4 NO contacts provide multiple opportunities for integrating feedback signals or control logic into existing automation setups.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3TX4440-0A auxiliary switch block. Enhance your control systems with reliable components sourced from Stanlo.

Technical specifications

Type	Auxiliary Switch Block
Terminal Type	Screw Terminal
Compliance	EN 50011
Contacts	4 NO (Normally Open)
Identification	80E

Common applications

Motor Control Circuits

Control Panels

Automation Systems

Safety Interlocks

Relay Logic

Electrical Control

Compatible systems

Siemens Contactor Relays (EN 50011 compliant)

Also known as

Siemens Contactor Auxiliary Switch

Replaces / compatible with

Designed to mount onto Siemens contactor relays to add auxiliary switching functions.

Technical note

Expert tip

Ensure proper mechanical fitment with the intended Siemens contactor relay before installation.

What happens next?

Email confirmation

Immediate receipt acknowledgment sent to you

Account manager assigned

Confirms your part's spec and condition

Your quote delivered

Tailored to your specific requirements

Frequently asked questions

How many normally open contacts does the Siemens 3TX4440-0A auxiliary switch block have?

The Siemens 3TX4440-0A auxiliary switch block is equipped with four (4) normally open (NO) contacts, identified by the code 80E, for expanding the functionality of contactor relays.