Overview
The Siemens 3TA6800-0A is an auxiliary contactor from the legacy 3TA series, engineered for auxiliary contact switching in industrial control circuits. This unit functions as a compact control relay suitable for both IEC and NEMA applications, providing reliable auxiliary switching for interlocking, pilot circuits, and auxiliary signaling in motor control assemblies. The 3TA6800-0A is compatible with standard DIN-rail mounting and integrates seamlessly into existing contactor combinations and control panels.
Key Features
- Compact Auxiliary Design: Space-efficient form factor for integration with contactor assemblies
- IEC & NEMA Compatible: Meets standards for industrial control applications across regions
- Screw Terminal Connections: Standard wiring for reliable field connections
- Rated Operational Range: 1-15A contact current at rated voltage
- Coil Voltage: 220V AC control coil for standard European/industrial supplies
Technical Specifications
- Part Number: 3TA6800-0A
- Coil Voltage: 220V AC
- Rated Contact Current: 1–15A (nominal)
- Contact Material: Silver alloy or equivalent industrial contact material
- Mounting: DIN-rail / screw terminal base
- Operating Temperature Range: -20°C to +60°C (typical industrial range)
- Insulation Class: Class B / Class F
- Compliant Standards: IEC 60947-5-1, VDE 0660
- Region of Manufacture: Germany
- Condition: Used, Tested
Typical Applications
- Auxiliary contact blocks for motor starter combinations
- Interlocking circuits in reversing or multi-motor control systems
- Pilot circuit control and status indication circuits
- Industrial automation control panels and starter assemblies
- Warehouse and manufacturing equipment with 220V coil supply
Compatibility & Replacements
The 3TA6800-0A is a legacy auxiliary contactor. For applications requiring functional replacements, engineers may consider modern Siemens equivalents such as the 3RH or 3RT auxiliary contact blocks, which offer enhanced performance and extended product lifecycle. Contact your automation distributor to verify compatibility with your specific 3TF or 3TD contactor combination. Original OEM sourcing is recommended for exact form-fit-function replacement in critical applications.
