The Siemens 3TY73400C is a SICOP main contact kit designed for the Siemens 3TF34 contactor. It is used as a replacement spare when the main contacts of a contactor become worn or damaged due to repeated switching, electrical arcing and mechanical operation. The corresponding Siemens reference is commonly listed as 3TY7340-0C.
This main contact kit is specified for a 32A AC-3 application and is suitable for industrial motor starters, motor-control panels, electrical control cabinets, automation equipment and contactor maintenance. The SICOP kit is supplied as a set of 6 fixed contacts and 3 moving contacts.
The Siemens 3TY73400C main contact kit is suitable for:
The 3TY73400C provides a suitable replacement for worn or damaged main contacts in compatible 3TF34 contactors.
Replacing worn contact surfaces can help maintain reliable electrical switching and current-carrying performance.
Replacing the main contact components can extend the service life of a compatible contactor when the remaining components are in good condition.
Replacing the contact kit can be more economical than replacing the complete contactor when the main contacts are the primary worn components.
The SICOP kit contains 6 fixed contacts and 3 moving contacts, providing the main contact components required for the compatible application.
The Siemens 3TY73400C is a dedicated 32A SICOP main contact kit for the 3TF34 contactor. It is suitable for industrial contactor maintenance, servicing and refurbishment applications.
Always verify the exact contactor model and spare-part number before ordering or installation.
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1. What is Siemens 3TY73400C?
The 3TY73400C is a Siemens SICOP main contact kit suitable for the 3TF34 contactor.
2. What is the rated current?
It is specified for the 32A AC-3 3TF34 contactor application.
3. What does the contact kit contain?
The SICOP kit contains 6 fixed contacts and 3 moving contacts.
4. What is the main contact kit used for?
It is used to replace worn or damaged main contacts during compatible Siemens contactor maintenance and repair.
5. What should I check before purchasing?
Verify the contactor model, AC-3 rating and Siemens spare-part number to ensure that 3TY73400C is the correct replacement.
| Parameter | Specification |
|---|---|
| Product Series | Siemens SICOP / 3TY Series |
| Model Number | 3TY7340-0C |
| Product Type | Main Contact Kit |
| Compatibility | Siemens 3TF34 (32A) 3-pole contactor |
| Kit Contents | 6 fixed contacts + 3 moving contacts |
| Application | Contact replacement in power contactors |
| Usage | Motor control, industrial switching, maintenance |
| Rated Duty | AC-3 motor duty (typical) |
| Mounting Type | Internal contactor assembly replacement |
| Brand | Siemens |
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