Siemens 6ES7972-0BA12-0XA0 PROFIBUS DP Connector 90° | Replacement, Equivalent & Selection Guide
The Siemens 6ES7972-0BA12-0XA0 is a PROFIBUS DP bus connector with a 90° cable outlet, supporting data transfer rates up to 12 Mbit/s. Designed for seamless integration with Siemens SIMATIC S7-300/400 PLCs and distributed I/O systems, this connector is a critical component in industrial fieldbus networks. This page provides full technical specifications, compatible replacement models, and a structured selection guide to help engineers and procurement teams make informed decisions.
Technical Specifications
- Part Number: 6ES7972-0BA12-0XA0
- Brand: Siemens / SIMATIC
- Series: SIMATIC NET PROFIBUS
- Connector Type: PROFIBUS DP Bus Connector
- Cable Outlet Angle: 90°
- Max. Transmission Rate: 12 Mbit/s
- Terminating Resistor: Switchable (integrated)
- PG/PC Interface: Not included
- Degree of Protection: IP20
- Operating Temperature: -20 °C to +85 °C
- Weight: Approx. 260 g (packaged)
- Housing Material: Thermoplastic
- Standards: EN 50170, IEC 61158
Compatible Replacement & Equivalent Models
The following models are functionally compatible or serve as direct/near-direct replacements for the 6ES7972-0BA12-0XA0. Always verify electrical and mechanical compatibility before substitution.
- 6ES7972-0BA52-0XA0 — Siemens OEM replacement, 90° outlet, with PG socket (upgraded variant)
- 6ES7972-0BB52-0XA0 — 35° cable outlet variant; suitable where cable routing differs
- 6ES7972-0BA42-0XA0 — Previous generation, 90° outlet, compatible up to 12 Mbit/s
- FC PROFIBUS Plug 180 (Siemens 6GK1500-0FC10) — 180° outlet alternative for panel-mount applications
- Third-party equivalents: Phoenix Contact SUBCON-PLUS-PROFIB/SC, Weidmüller SAISIO-M12 series — verify pinout and impedance before use
Note: Konmask.com supplies genuine Siemens parts. Third-party equivalents listed above are for reference only.
Why Choose the Original Model
- Guaranteed Compatibility: Factory-tested with SIMATIC S7-300, S7-400, ET 200M, ET 200S, and SIMATIC NET devices
- Signal Integrity: Integrated terminating resistor ensures clean bus termination at line ends, reducing signal reflection
- Durability: Rated for industrial environments with wide temperature range and robust thermoplastic housing
- Plug-and-Play: Tool-free cable connection with screw terminals; no additional tools required for field installation
- Regulatory Compliance: Meets EN 50170 and IEC 61158 fieldbus standards
Typical Applications
- SIMATIC S7-300 / S7-400 PLC PROFIBUS DP port connections
- Distributed I/O: ET 200M, ET 200S, ET 200SP fieldbus wiring
- Drive systems: SINAMICS, MICROMASTER frequency inverter PROFIBUS integration
- HMI / SCADA: Connecting SIMATIC HMI panels via PROFIBUS DP
- Process automation: DCS fieldbus segment termination in chemical, oil & gas, and power plants
- Machine tool and robotics: CNC and robot controller fieldbus networks
System Compatibility
- PLC Platforms: Siemens SIMATIC S7-300, S7-400, S7-1500 (via DP interface module)
- Distributed I/O: ET 200M, ET 200S, ET 200SP, ET 200pro
- Drives: SINAMICS G120, G150, S120; MICROMASTER 440
- HMI: SIMATIC TP, MP, Comfort Panel series
- Network Topology: Linear bus, tree (with repeaters), max. 32 nodes per segment
- Cable Type: PROFIBUS standard cable (Type A, impedance 135–165 Ω)
Selection Guide
Use the following criteria to select the correct PROFIBUS connector for your application:
- Cable Outlet Angle: Choose 90° (0BA12) for standard panel wiring; choose 35° (0BB52) for tight cable routing
- PG/PC Interface: If you need to connect a programming device inline, select a variant with integrated PG socket (e.g., 0BA52)
- Bus Termination: Use connectors with switchable terminating resistor at both ends of the PROFIBUS segment
- Transmission Rate: All 12 Mbit/s-rated connectors are backward compatible with lower baud rates (9.6 kbit/s to 12 Mbit/s)
- Quantity: Each PROFIBUS device requires one connector; order one per node plus spares for maintenance
Quality Assurance & Sourcing
- Genuine Parts: Konmask.com sources 6ES7972-0BA12-0XA0 directly from authorized Siemens distribution channels
- Inspection: Each unit is inspected for physical integrity and packaging authenticity before shipment
- Traceability: Batch and serial traceability available upon request for MRO and OEM customers
- Warranty: 12-month warranty against manufacturing defects
- Lead Time: In-stock items ship within 1–3 business days; contact us for bulk order lead times
How to Order
- Online: Add to cart directly on this page at Konmask.com
- Email: Send your BOM or purchase order to [email protected]
- Phone/WhatsApp: +0086 19859288691
- Bulk & OEM Orders: Request a quote for volume pricing and custom lead times
- Export & Cross-border: We support international shipping; contact us for customs documentation and HS code assistance
Replacement & Compatibility FAQ
Q: Can I use 6ES7972-0BA52-0XA0 as a direct replacement for 6ES7972-0BA12-0XA0?
A: Yes. The 0BA52 is the current production successor with an added PG socket. It is fully backward compatible in terms of electrical and mechanical fit.
Q: Is the 6ES7972-0BA12-0XA0 still in production?
A: This model has been superseded by newer variants. Konmask.com maintains stock of both original and successor models. Contact us to confirm current availability.
Q: Can I use this connector with non-Siemens PROFIBUS devices?
A: Yes. The connector follows the EN 50170 / IEC 61158 standard and is compatible with any PROFIBUS DP device using a standard 9-pin Sub-D port.
Q: What cable type is required?
A: Use PROFIBUS Type A cable (characteristic impedance 135–165 Ω, capacitance ≤ 30 pF/m). Siemens part 6XV1830-0EH10 is a recommended cable.
Q: How do I enable the terminating resistor?
A: Slide the termination switch on the connector to the ON position. Only activate termination on the first and last device in the PROFIBUS segment.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: [email protected] | +0086 19859288691
