3TY7440-0A - Siemens Contact Kit

Siemens 3TY7440-0A Main Contact Kit for 3TF44 Contactors

If your 3TF44 contactor isn’t performing the way it used to, there’s a good chance the contacts are worn down. Instead of replacing the entire unit, the Siemens 3TY7440-0A main contact kit gives you a straightforward way to fix the problem and get things back to normal.

This kit is built specifically for 3TF44 contactors, so everything lines up the way it should. No guesswork, no forcing parts to fit. Once installed, it helps restore solid electrical contact and smoother switching—exactly what you want in systems that run day in and day out.

It’s a simple fix that can save both time and money, especially in maintenance situations where downtime isn’t an option. The simplest way to fix the problem is to change old contact to new ones and things turn normal again.

Key Features and Benefits

• Made for Siemens 3TF44 contactors
• Helps restore proper contactor function
• Supports consistent electrical contact and switching
• A practical alternative to full contactor replacement
• Straightforward installation with a precise fit
• Lightweight and easy to handle (0.055 kg)

Technical Specifications

• Manufacturer: Siemens
• Catalog Number: 3TY7440-0A
• Product Type: Main Contacts
• Series: 3TY7
• Compatibility: 3TF44 Contactors
• Net Weight: 0.055 kg

Material Compliance and Certifications

• Substance Compliance Date: 07/01/2006
• Meets Siemens material and environmental standards for industrial electrical components

Where It Works Best

• This contact kit is commonly used in:
• Motor control setups
• Industrial machinery and production lines
• Electrical panels in commercial or industrial buildings
• Routine maintenance and repair jobs