Product Introduction
When a PROFIBUS network experiences signal degradation or intermittent connections, the Siemens 6ES7972-0BB41-0XA0 bus connector provides a robust solution. Designed for Siemens SIMATIC DP systems, this PROFIBUS connector integrates an RS-485 interface with a 35° tilted cable outlet, ensuring reliable data transmission at speeds up to 12 Mbit/s. The 6ES7972-0BB41-0XA0 includes a PG receptacle for programming access and a slide-switch terminating resistor with isolating function, making it ideal for end-of-line nodes in demanding industrial environments.
Key Features and Design
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Screw termination for secure PROFIBUS cable connections
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9-pin sub-D connector for network components or terminal equipment
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Integrated terminating resistor with isolating function, connectable via slide switch
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35° cable outlet for space-saving installations in cabinets
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PG receptacle for easy programming and diagnostics
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Strain relief included to protect cable integrity
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Silicon-free enclosure suitable for sensitive applications
Technical Specifications
The Siemens 6ES7972-0BB41-0XA0 is built to withstand harsh conditions. Detailed specifications include:
| Parameter |
Value |
| Transfer rate (PROFIBUS DP) |
9.6 kbit/s … 12 Mbit/s |
| Electrical connections for PROFIBUS cables |
2 (screw type) |
| Electrical connections for network/terminal equipment |
1 (9-pin sub-D) |
| Cable outlet angle |
35° |
| Dimensions (W x H x D) |
15.8 x 54 x 39.5 mm |
| Net weight |
34 g |
| Operating temperature |
-25 … +60 °C |
| Storage/transport temperature |
-40 … +70 °C |
| Protection class |
IP20 |
| PG connection socket |
Yes |
| Strain relief |
Yes |
| Silicon-free |
Yes |
| RoHS conformity |
Yes |
| UL approval |
Yes |
Real-World Applications
The Siemens 6ES7972-0BB41-0XA0 excels in automated production lines where reliable fieldbus communication is critical. For example, in a bottling plant, this connector links distributed I/O stations to the main PLC, handling up to 12 Mbit/s data rates without errors. Its 35° cable outlet allows routing cables at an angle inside compact electrical cabinets, reducing strain and saving space. The integrated terminating resistor simplifies network termination, eliminating the need for external modules. Whether used in automotive assembly or material handling systems, this connector reduces signal reflection and ensures consistent data integrity.
Installation and Setup Guidance
Mount the Siemens 6ES7972-0BB41-0XA0 easily by securing the PROFIBUS cable with the screw terminals. Connect the sub-D end to the DP port of your device. For network termination at the end of a segment, slide the terminating resistor switch to the 'on' position. The PG receptacle provides a direct programming interface without disconnecting the bus cable. Ensure the cable outlet direction matches your cabinet layout to avoid sharp bends. No special tools are required beyond a standard screwdriver for the terminals.
Maintenance and Reliability
Regularly inspect the screw connections for tightness to maintain low contact resistance. The plastic enclosure provides IP20 protection, so keep the connector free from dust and moisture. The integrated strain relief extends cable life by minimizing movement at the termination point. With RoHS and UL certifications, the Siemens 6ES7972-0BB41-0XA0 meets global safety and environmental standards, contributing to long-term reliability and reduced total cost of ownership.
Buying Guide and Selection Advice
Before purchasing the Siemens 6ES7972-0BB41-0XA0, verify compatibility with your PROFIBUS network: it supports baud rates up to 12 Mbit/s and works with standard PROFIBUS cables. The connector is suited for SIMATIC DP stations but can interface with any RS-485 based PROFIBUS device. For custom applications, consider the angled cable outlet to optimize routing. PLC Source PRO (ubest101) stocks genuine Siemens automation parts, ensuring you receive authentic components backed by manufacturer specifications. Contact our team if you need assistance with large orders or alternative part numbers.