Siemens
Siemens 3TB44-170A 3-Pole Contactor - 25 HP
Siemens 3TB44-170A 3-Pole IEC Contactor - 25 HP
● In Stock
12-Mo Warranty
Same-Day Dispatch
Ships Worldwide
🎖 Veteran-Owned
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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
3-Phase Operation
IEC Rated
25 HP @ 460V Rating
2 NO/2 NC Auxiliary Contacts
High Capacity
Product description
The Siemens 3TB44-170A is a powerful 3-phase IEC rated contactor designed for high-capacity motor control in demanding industrial environments. It is rated for 10 HP at 230V and 25 HP at 460V, with 2 NO and 2 NC auxiliary contacts, conforming to IEC 60946 standards.
This contactor is suitable for applications such as large industrial machinery, heavy-duty pumps, and complex automation systems where reliable switching of significant motor loads is required.
Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3TB44-170A with competitive pricing and efficient delivery. Secure your industrial automation components from a trusted supplier.
Technical specifications
| Poles | 3 |
| HP Rating | 10 HP @ 230V, 25 HP @ 460V |
| Standard | IEC Rated |
| Conforms to | IEC 60946 |
| Auxiliary Contacts | 2 NO, 2 NC |
Common applications
Motor Control
Heavy Industrial Machinery
Large Pumps
Automation Systems
Manufacturing
Compatible systems
Industrial control panels, Large motor control centers, Heavy machinery automation
Also known as
Siemens 3TB44-170A Contactor, Siemens 25 HP IEC Contactor
Replaces / compatible with
This Siemens 3TB44-170A contactor can replace older or equivalent Siemens 3TB series contactors.
Technical note
Expert tip
This contactor uses an AC coil. Verify the voltage rating of the coil to ensure it matches your control circuit power supply.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
What are the auxiliary contacts on the Siemens 3TB44-170A contactor used for?
The Siemens 3TB44-170A features 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, which are typically used for interlocking, signaling, or control logic within the automation system.