SIEMENS 6GK1905-0AE00 Connector Split Conn Term | Replacement, Equivalent & Selection Guide
The SIEMENS 6GK1905-0AE00 is a split connector terminal designed for PROFIBUS networks, enabling reliable field-bus connections in industrial automation environments. This page provides full technical specifications, compatible replacement models, application guidance, and sourcing information to help engineers and procurement teams make confident decisions.
Technical Specifications
- Part Number: 6GK1905-0AE00
- Manufacturer: Siemens AG
- Product Family: SIMATIC NET PROFIBUS
- Type: Split Connector Terminal (Bus Connector)
- Interface: PROFIBUS DP / RS-485
- Connector Type: 9-pin Sub-D (DB9), female
- Cable Entry Angle: 90° (axial)
- Terminating Resistor: Switchable (integrated)
- Data Transfer Rate: Up to 12 Mbit/s
- Operating Temperature: -40 °C to +85 °C
- Protection Class: IP20
- Housing Material: Thermoplastic
- Weight: Approx. 50 g
- Standards: EN 50170, IEC 61158
Compatible Replacement & Equivalent Models
The following models are commonly used as direct or functional replacements for the 6GK1905-0AE00. Always verify pinout, termination, and cable angle before substitution:
- 6GK1905-0AA00 – Siemens PROFIBUS connector, 35° cable exit angle variant
- 6GK1905-0AB00 – Siemens PROFIBUS connector with PG socket
- 6GK1905-0AC00 – Siemens FastConnect bus connector, 90°
- 6ES7972-0BA52-0XA0 – Siemens PROFIBUS bus connector 90°, alternative series
- 6ES7972-0BB52-0XA0 – Siemens PROFIBUS bus connector 35°, alternative series
- Phoenix Contact SUBCON-PLUS-PROFIB/SC – Third-party compatible PROFIBUS connector
- Belden 3079A – Compatible PROFIBUS cable for use with this connector
Note: Confirm firmware compatibility and bus termination requirements with your system integrator before replacing.
Why Choose the Original Model
- OEM Guaranteed Compatibility: Designed and tested by Siemens for SIMATIC NET systems — zero integration risk.
- Certified Performance: Meets EN 50170 and IEC 61158 standards for PROFIBUS DP communication.
- Integrated Termination Switch: Built-in switchable terminating resistor simplifies bus-end configuration.
- Robust Construction: Rated for -40 °C to +85 °C, suitable for harsh industrial environments.
- Long-Term Support: Siemens spare parts availability and technical documentation support.
- Reduced Commissioning Time: Plug-and-play design with screw-terminal wiring for fast field installation.
Typical Applications
- PROFIBUS DP network field device connections (sensors, actuators, drives)
- Siemens SIMATIC S7-300 / S7-400 / S7-1500 PLC bus wiring
- Distributed I/O connections (ET 200 series)
- Variable frequency drive (VFD) PROFIBUS integration
- Process automation panels and MCC (Motor Control Centers)
- Factory automation lines requiring high-speed fieldbus communication
- Retrofit and upgrade projects replacing legacy bus connectors
System Compatibility
- PLC Platforms: Siemens SIMATIC S7-200, S7-300, S7-400, S7-1500
- Distributed I/O: ET 200M, ET 200S, ET 200SP (via DP/PA coupler)
- HMI: Siemens SIMATIC HMI panels with PROFIBUS DP port
- Drives: Siemens SINAMICS, MICROMASTER series with PROFIBUS option board
- Network Topology: Linear bus, tree, and star (with repeaters)
- Bus Protocol: PROFIBUS DP V0 / V1 / V2
Selection Guide
Use the following criteria to select the correct PROFIBUS connector for your application:
- Cable Exit Angle: Choose 90° (axial, this model) for panel-mounted devices with limited depth; choose 35° for standard cabinet wiring.
- PG Socket Required? If you need a programming port on the connector, select 6GK1905-0AB00 instead.
- FastConnect Cable? If using Siemens FastConnect cable (pre-stripped), select 6GK1905-0AC00.
- Bus Termination: Only the first and last device on the PROFIBUS segment should have termination enabled. This model includes a switchable resistor.
- Data Rate: All variants support up to 12 Mbit/s — no selection difference based on speed alone.
- Environment: For outdoor or high-humidity environments, consider IP65-rated connectors from the SIMATIC NET M12 range.
Quality Assurance & Sourcing
- All units sourced from authorized Siemens distribution channels or verified OEM surplus stock.
- Each item undergoes visual inspection and functional verification prior to shipment.
- Original manufacturer packaging preserved where available; anti-static packaging used for all shipments.
- Batch traceability records maintained for B2B procurement compliance.
- Certificate of Conformance (CoC) available upon request for regulated industries.
- Returns accepted within 30 days for unused, unopened items in original condition.
How to Order
- Step 1: Confirm your part number: 6GK1905-0AE00
- Step 2: Specify quantity and required delivery timeline.
- Step 3: Contact us via email or phone for bulk pricing, lead time, and availability.
- Step 4: Add to cart and proceed to checkout, or request a formal quotation for PO-based procurement.
- Payment: T/T, PayPal, credit card, and trade credit available for qualified accounts.
- Shipping: DHL / FedEx / UPS express worldwide; sea freight available for large orders.
Replacement & Compatibility FAQ
Q: Can I use 6GK1905-0AE00 to replace 6ES7972-0BA52-0XA0?
A: Both are PROFIBUS DP connectors with 90° cable exit and integrated termination. They are functionally equivalent in most applications. Verify the connector housing fits your device’s DB9 port spacing before substitution.
Q: Is this connector compatible with PROFIBUS PA?
A: No. This connector is designed for PROFIBUS DP (RS-485). PROFIBUS PA requires a DP/PA coupler and different cabling. Do not use this connector directly on PA segments.
Q: Can I use a third-party connector as a replacement?
A: Yes, provided it meets EN 50170 / IEC 61158 specifications and uses the correct DB9 pinout. Phoenix Contact and Weidmüller offer compatible alternatives, but OEM parts are recommended for critical applications.
Q: How do I enable/disable the terminating resistor?
A: The 6GK1905-0AE00 features a slide switch on the connector body. Set to “ON” only for the first and last node on the PROFIBUS segment. All intermediate nodes must have termination set to “OFF”.
Q: What cable type is compatible with this connector?
A: Use PROFIBUS standard cable (Type A, impedance 135–165 Ω, capacitance <30 pF/m) such as Siemens 6XV1830-0EH10 or equivalent. Belden 3079A is a widely used compatible alternative.
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