Overview
The Siemens 3TY6440-0A is an OEM main contact kit engineered for 3TB44 contactor applications. It delivers dependable electrical contacts for three-pole motor control, soft starters, and industrial automation systems. This kit is essential for restoring full functionality to worn or damaged contactors in production environments.
Key Features
- Complete main contact kit with 3 moving contacts and 6 fixed contacts
- Designed specifically for Siemens 3TB44 contactor rebuilds
- Rated for 600 V, 32 A, three-pole operation
- Includes fasteners (screws and washers) for installation
- Authentic Siemens OEM part—guaranteed quality and compatibility
Technical Specifications
The 3TY6440-0A offers the following electrical and mechanical characteristics for contactor maintenance and repair:
- Voltage Rating: 600 VAC
- Current Rating: 32 A
- Poles: 3-pole configuration
- Contact Elements: 3 moving, 6 fixed
- Application: Siemens 3TB44 contactor main contacts
- Hardware: Includes screws and washers
Typical Applications
The Siemens 3TY6440-0A contact kit is commonly used in:
- Three-phase motor control and soft-start applications
- Industrial pump and fan drive systems
- Machine tool automation and CNC equipment
- HVAC compressor and air-handling unit controls
- Manufacturing production line equipment
Compatibility & Replacements
The 3TY6440-0A is the direct OEM replacement for worn or failed contacts in Siemens 3TB44 contactors. This part provides a cost-effective alternative to replacing an entire contactor assembly. It is not interchangeable with other 3TB series contact kits; verify your contactor model before ordering. Related Siemens contact kits in the 3TB series include the 3TY6460-0A (3TB46), 3TY6480-0A (3TB48), 3TY6500-0A (3TB50), and 3TY6520-0A (3TB52).
