Home › Manufacturers › Siemens › 3TX4490-4A

Siemens

Siemens 3TX4490-4A Interference Suppression Diode with LED 24-70V DC

Siemens 3TX4490-4A Interference Suppression Diode with LED 24-70V DC.

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

In Stock — Ready to Ship

ManufacturerSiemens

Part number3TX4490-4A

Type Surge Suppressor / Interference Suppression Diode

Voltage 24-70V DC

Features Integrated LED

Mounting Plug-in

Get a price for 3TX4490-4A

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

Interference suppression diode Integrated LED indicator DC voltage range 24-70V Easy plug-in installation Protects contactors and control circuits Visual status indication

Product description

The Siemens 3TX4490-4A is an interference suppression diode with an integrated LED indicator, designed for DC circuits operating within the 24-70V range. It is engineered to plug directly onto Siemens contactors, with or without auxiliary switch blocks, providing essential protection against voltage transients and indicating operational status.

This suppression diode is crucial for absorbing voltage spikes and reducing electromagnetic interference (EMI) in DC control circuits, thereby protecting sensitive components and ensuring reliable operation. The LED provides a visual indication of the suppressor's status or the presence of voltage, adding diagnostic capability.

Stanlo Automation, your veteran-owned provider of surplus industrial automation parts, offers the Siemens 3TX4490-4A. Count on us for quality components to maintain the integrity and performance of your automation systems.

Technical specifications

Type	Surge Suppressor / Interference Suppression Diode
Voltage	24-70V DC
Features	Integrated LED
Mounting	Plug-in
Compatibility	Siemens contactors (with/without aux switch blocks)

Common applications

DC control circuits

Industrial automation

Automation panels

Motor control

Signaling

Diagnostics

Compatible systems

Siemens contactors (with or without auxiliary switch blocks)

Also known as

Siemens 3TX4490-4A

Replaces / compatible with

Designed to be plugged onto Siemens contactors for DC circuit protection and status indication.

Technical note

Expert tip

The plug-in design of the 3TX4490-4A allows for quick retrofitting onto existing Siemens contactors without the need for additional wiring.

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

What is the function of the LED on the Siemens 3TX4490-4A surge suppressor?

The integrated LED on the Siemens 3TX4490-4A serves as a visual indicator. It can signal the status of the suppressor or indicate the presence of voltage in the DC circuit, aiding in diagnostics and troubleshooting.