SIEMENS 6GK5212-2BB00-2AA3 Industrial Media Converter | Replacement, Equivalent & Selection Guide
The SIEMENS 6GK5212-2BB00-2AA3 is an industrial-grade media converter designed for PROFINET and Industrial Ethernet networks. It converts between 100 Mbit/s electrical (RJ45) and 100 Mbit/s optical (SC) interfaces, enabling long-distance fiber transmission in harsh industrial environments. This page provides full technical specifications, compatible replacement models, application guidance, and ordering information.
Technical Specifications
- Part Number: 6GK5212-2BB00-2AA3
- Brand: SIEMENS (SCALANCE X)
- Function: Media Converter, 100 Mbit/s Electrical ↔ 100 Mbit/s Optical (SC)
- Transmission Rate: 100 Mbit/s (Fast Ethernet)
- Electrical Port: 1× RJ45, 10/100 Mbit/s auto-sensing
- Optical Port: 1× SC duplex, 100BASE-FX multimode fiber
- Fiber Type: Multimode (MMF), 50/125 µm or 62.5/125 µm
- Max. Fiber Distance: Up to 3,000 m (multimode)
- Supply Voltage: 24 V DC (18–32 V DC)
- Power Consumption: Approx. 3 W
- Operating Temperature: −10 °C to +60 °C
- Protection Class: IP30
- Mounting: DIN rail or S7-300 rail
- Dimensions (W×H×D): 30 × 125 × 114 mm
- Weight: Approx. 560 g
- Certifications: CE, UL, ATEX (Zone 2)
- PROFINET Compatibility: Yes (transparent media conversion)
Compatible Replacement & Equivalent Models
The following models are functionally equivalent or drop-in replacements for the 6GK5212-2BB00-2AA3. Always verify fiber type, port configuration, and supply voltage before substitution.
- 6GK5212-2BB00-2AA3 – Original SIEMENS SCALANCE X212-2 (this unit)
- 6GK5212-2BD00-2AA3 – Singlemode SC variant (up to 26 km), same electrical interface
- 6GK5212-2GG00-2AA2 – Earlier hardware revision, functionally compatible
- 6GK5208-0BA10-2AA3 – SCALANCE X208, 8-port managed switch with fiber uplink (for expanded topologies)
- Moxa IMC-21A-MM-SC – Third-party multimode SC media converter, 100BASE-FX, 24 VDC, DIN rail
- Phoenix Contact FL MC 100 MM SC – Compatible multimode fiber media converter, DIN rail, 24 VDC
Note: Third-party replacements may require firmware or PROFINET configuration adjustments. Contact Konmask for pre-sales compatibility verification.
Why Choose the Original Model
- Native PROFINET Support: Transparent conversion preserves PROFINET RT/IRT timing without additional configuration.
- SIEMENS TIA Portal Integration: Fully recognized in STEP 7 and TIA Portal for diagnostics and asset management.
- Industrial Robustness: Rated for −10 °C to +60 °C, IP30, and ATEX Zone 2 — suitable for demanding plant environments.
- Long-Term Availability: Supported under SIEMENS Industrial Automation lifecycle policy with guaranteed spare parts.
- Plug-and-Play: No software configuration required for basic media conversion; auto-negotiation on RJ45 port.
Typical Applications
- Extending PROFINET segments beyond 100 m copper limit via fiber backbone
- Connecting PLC racks (S7-300/400/1500) to remote I/O over multimode fiber
- Ring topology (MRP) fiber segments in manufacturing cells
- Cabinet-to-cabinet fiber links in automotive, chemical, and power generation plants
- Noise-immune data transmission in high-EMI environments (welding, drives, HV switchgear)
- Building automation and process control networks requiring electrical isolation
System Compatibility
- PLC Platforms: SIEMENS S7-300, S7-400, S7-1200, S7-1500; compatible with any PROFINET-capable controller
- Network Protocols: PROFINET, Industrial Ethernet (IEEE 802.3u), Modbus TCP (transparent)
- SIEMENS Switches: SCALANCE X200, X300, X400 series (fiber uplink ports)
- HMI/SCADA: SIMATIC HMI panels, WinCC, third-party SCADA via Ethernet
- Fiber Standards: 100BASE-FX, IEC 60793-2-10 OM1/OM2 multimode fiber
- Power Supply: Compatible with SIEMENS SITOP PSU100S and equivalent 24 VDC DIN rail PSUs
Selection Guide
Use the criteria below to confirm the 6GK5212-2BB00-2AA3 is the right choice, or to identify the correct alternative:
- Fiber Distance ≤ 3,000 m + Multimode SC: → 6GK5212-2BB00-2AA3 ✓ (this unit)
- Fiber Distance up to 26 km + Singlemode SC: → 6GK5212-2BD00-2AA3
- Need managed switching + fiber uplink: → SCALANCE X208 (6GK5208-0BA10-2AA3)
- Budget replacement, non-PROFINET network: → Moxa IMC-21A-MM-SC or Phoenix Contact FL MC 100 MM SC
- Redundant ring (MRP) required: → Use SCALANCE X managed switches; media converters do not support MRP independently
- ATEX Zone 1 required: → Consult SIEMENS for ATEX Zone 1 certified variants
Quality Assurance & Sourcing
- Authenticity: All units sourced from authorized SIEMENS distributors or verified surplus channels with full traceability.
- Inspection: Each unit undergoes visual inspection, label verification, and functional power-on test before shipment.
- Warranty: 12-month warranty against manufacturing defects. Replacement or refund within warranty period.
- Packaging: Original or equivalent ESD-safe packaging; anti-static bag + foam insert for transit protection.
- Documentation: Certificate of conformity and test report available on request.
How to Order
- Confirm part number: 6GK5212-2BB00-2AA3
- Specify required quantity and delivery timeline.
- Submit inquiry via support@konmask.com or use the Add to Cart button above.
- Receive proforma invoice within 1 business day.
- Payment via T/T, PayPal, or other agreed terms.
- Shipment via DHL / FedEx / SF Express with tracking number provided.
For bulk orders (>5 units) or urgent requirements, contact us directly for priority pricing and lead time confirmation.
Replacement & Compatibility FAQ
Q: Can I replace 6GK5212-2BB00-2AA3 with 6GK5212-2BD00-2AA3?
A: Yes, if you switch to singlemode fiber. The electrical RJ45 interface and mounting are identical, but the optical port and fiber type differ (SC singlemode vs. multimode).
Q: Does this converter require configuration in TIA Portal?
A: No configuration is required for basic media conversion. It operates transparently. However, it can be detected and monitored via PROFINET if assigned an IP address.
Q: Is the 6GK5212-2BB00-2AA3 compatible with S7-1500 PROFINET?
A: Yes. It is fully transparent to PROFINET and works with S7-1500, S7-300, S7-400, and S7-1200 controllers.
Q: What fiber cable do I need?
A: Use 50/125 µm or 62.5/125 µm multimode fiber with SC duplex connectors. Maximum segment length is 3,000 m.
Q: Can I use a third-party media converter as a replacement?
A: Yes, for non-PROFINET or basic Ethernet applications. For PROFINET networks, the original SIEMENS unit is recommended to ensure timing compliance and TIA Portal diagnostics.
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