Siemens
Siemens 3RT1944-6A Replacement Contacts for Size S3
Siemens 3RT1944-6A Replacement Contact Kit.
● In Stock
12-Mo Warranty
Same-Day Dispatch
Ships Worldwide
🎖 Veteran-Owned
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12-month warranty
All units tested
Same-day dispatch
Order by 2pm CST
Worldwide delivery
US, EU, Asia, Middle East
Veteran-owned
CAGE: 9NK75
Replaces main contacts for Size S3 contactors
Economical repair solution
Includes 3 NO contacts and hardware
Rated for 30 kW AC-3 loads
Extends contactor lifespan
Product description
The Siemens 3RT1944-6A is a replacement contact kit for SIRIUS contactor frame size S3. This 3-pole kit features 3 NO (normally open) main contacts, comprising 3 movable and 6 fixed contacts, along with mounting parts.
Designed for AC-3 applications with a 30 kW rating, this kit allows for the economical refurbishment of worn contactor contacts, ensuring continued reliable operation.
Stanlo Automation, a veteran-owned supplier of surplus industrial parts, offers this Siemens component. We are committed to providing quality parts and excellent service.
Technical specifications
| Type | Replacement Contact Kit |
| For Contactor Size | S3 |
| Poles | 3-pole |
| Application | AC-3 |
| Power Rating | 30 kW |
| Contact Configuration | 3 NO (Main Contacts) |
| Includes | 3 movable, 6 fixed contacts, mounting parts |
| Series | SIRIUS 3RT19 |
Common applications
Motor control
Industrial automation
Heavy machinery
Power distribution
Manufacturing plants
Compatible systems
Siemens SIRIUS 3RT1 Size S3 Contactors
Also known as
Siemens 3RT1944-6A contact set
3RT1944-6A renewal parts
Siemens S3 contactor contacts
Replaces / compatible with
This kit replaces the main contacts for Siemens SIRIUS 3RT1 size S3 contactors. It is a phased-out product, with the successor SIRIUS 3RT2 contactors available.
Technical note
Expert tip
When replacing contacts with the 3RT1944-6A kit, ensure all old contact material is cleaned from the contactor assembly to prevent premature wear or arcing.What happens next?
1
Email confirmation
Immediate receipt acknowledgment sent to you
2
Account manager assigned
Confirms your part's spec and condition
3
Your quote delivered
Tailored to your specific requirements
Frequently asked questions
Can the Siemens 3RT1944-6A contact kit be used for Size S2 contactors?
No, the Siemens 3RT1944-6A contact kit is specifically designed for Size S3 SIRIUS contactors. The 3RT1936-6A is the corresponding kit for Size S2 contactors.