Introduction to the Siemens 6GK1901-1BB10-2AB0
When network reliability is non-negotiable, the 6GK1901-1BB10-2AB0 from Siemens delivers a robust RJ45 data connector for Industrial Ethernet. This plug is engineered for IE FC TP cables 2x2, supporting 10/100 Mbit/s transfer rates. Its rugged metal enclosure and 180° cable outlet make it a dependable choice for demanding industrial environments.
Part of the Siemens FastConnect system, this connector simplifies field assembly while maintaining signal integrity. With a wide operating temperature range and IP20 protection, it suits control cabinets and machinery where space is tight.

Key Features & Technical Specifications
The 6GK1901-1BB10-2AB0 stands out with its FastConnect cut-and-clamp contacts, enabling quick termination of 4-wire TP installation cables (AWG22). This reduces installation time compared to traditional RJ45 plugs.
- Transfer rate: 10 Mbit/s, 100 Mbit/s
- Number of electrical connections: 4 for IE FC TP cables, 1 for network components/terminal equipment
- Connection type: Integrated cut-and-clamp contacts for 4-wire TP FC cable (AWG22); RJ45 connector for network side
- Material: Metal enclosure
- Reusability: Up to 10 reuses
- Cable outlet: 180°
- Dimensions: 13.7 mm width, 16 mm height, 55 mm depth
- Net weight: 35 g
- Connectable cable cross-section: 6.5 mm (diameter)
- Conductor cross-section: 0.33 mm²
- Ambient temperature: -40 to +85 °C (operation, storage, transport)
- Relative humidity: Up to 95% at 25 °C (without condensation)
- Protection class: IP20
- PoE capability: Yes
- PoE+ capability: Yes
- Silicon-free: Yes
- Strain relief: Yes
- Standards: RoHS, UL, cULus; Cat5 structured cabling
Applications & Use Cases
Its 180° cable outlet suits tight spaces where straight connectors won't fit. The metal enclosure provides durability in harsh conditions, while the FastConnect system speeds up installation—especially beneficial in large-scale cabling projects.
For example, in a production line upgrade, the 6GK1901-1BB10-2AB0 allows technicians to terminate cables quickly without special tools, reducing downtime. Its PoE capability supports IP cameras or wireless access points, simplifying power delivery.

Installation & Setup
To install, strip the IE FC TP cable and insert the wires into the integrated cut-and-clamp contacts. Use the FastConnect tool to crimp, ensuring a secure connection. The 180° outlet helps route cables neatly. Always verify cable cross-section (6.5 mm) and conductor size (0.33 mm²) for proper fit.
After assembly, test the connection with a network tester. The plug can be reused up to 10 times, allowing re-termination if needed. Follow Siemens guidelines for best results.
Maintenance & Reliability
Routine inspection of the connector is recommended to ensure contacts remain clean and tight. The metal enclosure protects against physical damage, while the silicon-free design prevents contamination in coating processes. With a wide temperature range and high humidity tolerance, this plug maintains performance in demanding environments.
Periodically check for cable strain and ensure the strain relief is intact. Re-terminate if the connector shows wear, given its reuse capability.
Compatibility & Integration
The 6GK1901-1BB10-2AB0 is designed for IE FC TP cables 2x2, commonly used in Siemens Industrial Ethernet networks. It connects to network components or terminal equipment via an RJ45 port. The plug supports 10/100 Mbit/s, making it compatible with standard Ethernet switches and PLCs.
For structured cabling, it meets Cat5 standards, ensuring reliable data transmission. Its PoE and PoE+ capabilities allow power delivery to connected devices, reducing separate cabling.
Troubleshooting & Common Issues
If a connection fails, check the termination: ensure wires are fully inserted and the cut-and-clamp contacts are properly crimped. Verify cable cross-section and conductor size match specifications. Inspect for damage to the metal enclosure or strain relief.
In high-vibration environments, confirm the connector is securely seated. If the plug has been reused multiple times, consider replacement to maintain signal integrity.
Product Support & Availability
The 6GK1901-1BB10-2AB0 is available through AutoDCSTech. Contact us for current stock and delivery options. Please verify lifecycle status before ordering.
Availability & Condition at AutoDCSTech
| Part Number | 6GK1901-1BB10-2AB0 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | Germany |
