Siemens
Siemens 3TF3400-0A Size 3 3-Pole Contactor
Siemens 3TF3400-0A Size 3, 3-pole AC-3 Contactor
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12-Mo Warranty
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12-month warranty
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Same-day dispatch
Order by 2pm CST
Worldwide delivery
US, EU, Asia, Middle East
Veteran-owned
CAGE: 9NK75
3-Pole Configuration
High Power AC-3 Rating
Designed for Plug-in Auxiliaries
Size 3 Footprint
Robust Siemens Quality
Product description
The Siemens 3TF3400-0A is a Size 3, 3-pole power contactor designed for AC-3 duty, capable of handling 15kW at 400/380V. It features an AC coil that operates at 120V/60Hz or 110V/50Hz. This unit is supplied without auxiliary contacts, but auxiliary contact blocks can be plugged onto the front.
This contactor is suitable for controlling higher power motors and switching heavier loads in industrial settings. Applications include large motor control, power distribution panels, and heavy machinery operations.
Stanlo Automation, a veteran-owned business specializing in surplus industrial automation parts, offers the Siemens 3TF3400-0A. Rely on us for your critical MRO needs.
Technical specifications
| Poles | 3 |
| Coil Voltage | 120V AC 60Hz / 110V AC 50Hz |
| Power | 15kW at 400/380V |
| Duty | AC-3 |
| Size | 3 |
| Auxiliary Contacts | None (pluggable) |
Common applications
Heavy Motor Control
Power Switching
Industrial Automation
Machine Tools
Distribution Panels
Compatible systems
Siemens motor control systems
High-power industrial equipment
Electrical switchgear
Also known as
Siemens 3TF3400
3TF3400-0A Contactor
Siemens Size 3 AC Contactor
Replaces / compatible with
This contactor is a direct replacement for other Siemens 3TF3400-0A units and is compatible with Siemens 3TF series accessories. Suitable for systems requiring a Size 3, 15kW AC-3 rated contactor.
Technical note
Expert tip
The '-0A' suffix denotes the standard AC coil voltage configuration without auxiliary contacts.What happens next?
1
Email confirmation
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2
Account manager assigned
Confirms your part's spec and condition
3
Your quote delivered
Tailored to your specific requirements
Frequently asked questions
What is the AC-3 power rating and coil voltage for the Siemens 3TF3400-0A contactor?
The Siemens 3TF3400-0A contactor is rated for 15kW at 400/380V under AC-3 duty and features an AC coil that operates at 120V/60Hz or 110V/50Hz.