Siemens SCALANCE X104-2 Industrial Ethernet Switch | 6GK5104-2BB00-2AA3 | DIN Rail Unmanaged

SCALANCE X104-2 Industrial Ethernet Switch (Unmanaged Network Solution for Automation)

The Siemens SCALANCE X104-2 (Model: 6GK5104-2BB00-2AA3) is an industrial-grade unmanaged Ethernet switch engineered for reliable network connectivity in demanding automation environments. Through Fast Ethernet technology and hybrid port configuration (copper + fiber), it delivers stable data transmission for industrial control systems, SCADA networks, and process automation infrastructure.

Designed for manufacturing plants, energy facilities, chemical processing units, and building automation systems, this switch addresses critical challenges including harsh environmental conditions, electromagnetic interference, network segmentation requirements, and the need for maintenance-free operation in 24/7 production environments.

With rugged construction, standardized DIN rail mounting, and flexible port options, the SCALANCE X104-2 offers plug-and-play deployment, extended temperature tolerance, compact footprint, and proven compatibility with Siemens TIA Portal ecosystem. Ideal for system integrators, automation engineers, OEM manufacturers, and facility maintenance teams seeking reliable industrial networking solutions. Contact our engineering team for application-specific configuration guidance and technical specifications.

Core Features & Technical Advantages

Hybrid Port Architecture
Equipped with 4×10/100 Mbps RJ45 copper ports and 2×100 Mbps fiber optic ports (multimode/singlemode options), enabling flexible network topology design. Supports copper-to-fiber conversion for extended distance connectivity up to 2-15 km depending on fiber module selection, ideal for distributed control systems across large facilities.

Industrial-Grade Environmental Resilience
Operates reliably in extended temperature range from -40°C to +70°C, withstanding extreme conditions in outdoor cabinets, factory floors, and unheated enclosures. Conformal coating and robust metal housing provide protection against dust, vibration, and electromagnetic interference common in industrial settings.

Plug-and-Play Unmanaged Operation
Zero-configuration deployment with auto-negotiation, auto-MDI/MDIX, and store-and-forward switching. Eliminates setup complexity while ensuring immediate network availability—perfect for retrofit projects and installations where IT expertise is limited.

DIN Rail Mounting & Compact Design
Standard 35mm DIN rail clip mounting allows seamless integration into control cabinets alongside PLCs, drives, and I/O modules. Compact form factor (40mm width) maximizes panel space efficiency in densely populated enclosures.

Redundant Power Input Options
Supports 24V DC power supply with redundant input terminals, ensuring continuous operation even during single power source failure. Low power consumption (typically <10W) reduces heat generation and operational costs.

Proven Siemens Ecosystem Compatibility
Fully compatible with SIMATIC controllers, HMI panels, PROFINET devices, and TIA Portal engineering software. Seamlessly integrates into existing Siemens automation architectures without protocol conversion or gateway requirements.

Typical Application Scenarios

This industrial Ethernet switch is engineered for environments demanding high reliability, environmental resilience, and deterministic network performance:

Manufacturing & Production Lines
Connects PLCs, robots, vision systems, and HMI panels in automotive assembly, electronics manufacturing, and packaging machinery. Handles real-time control data exchange while isolating production networks from enterprise IT infrastructure.

Process Automation & Chemical Plants
Provides network backbone for distributed control systems (DCS), field instruments, and SCADA servers in oil & gas, pharmaceuticals, water treatment, and food processing facilities. Fiber ports enable safe electrical isolation in hazardous area boundaries.

Energy & Utilities Infrastructure
Supports substation automation, renewable energy monitoring (solar/wind farms), and smart grid applications. Extended temperature rating ensures reliable operation in outdoor switchgear and remote unmanned sites.

Building Automation & HVAC Systems
Integrates BMS controllers, variable frequency drives, lighting controls, and access systems in commercial buildings, hospitals, and data centers. Compact size fits into space-constrained electrical rooms and ceiling-mounted enclosures.

Transportation & Infrastructure
Deployed in railway signaling, airport baggage handling, tunnel ventilation, and traffic management systems where network uptime directly impacts public safety and operational continuity.

Technical Specifications & Selection Guide

To ensure optimal performance and compatibility, review the following technical parameters:

Network Performance

• Switching Capacity: 1.2 Gbps wire-speed forwarding
• MAC Address Table: 1024 entries
• Latency: <10 μs (store-and-forward mode)
• Jumbo Frame Support: Up to 1536 bytes

Port Configuration

• 4× RJ45 10/100BASE-TX (auto-sensing, auto-crossover)
• 2× Fiber ports: 100BASE-FX multimode (SC connector, 2km) or 100BASE-LX singlemode (SC connector, 15km) – specify at order

Power & Environmental

• Input Voltage: 24V DC (18-32V DC range)
• Power Consumption: Max 8W
• Operating Temperature: -40°C to +70°C
• Storage Temperature: -40°C to +85°C
• Humidity: 5% to 95% RH (non-condensing)
• Protection Rating: IP30 (when properly installed)

Mechanical & Installation

• Mounting: 35mm DIN rail (EN 60715)
• Dimensions: 40 × 125 × 130 mm (W × H × D)
• Weight: Approx. 350g
• Housing Material: Metal with grounding terminal

Compliance & Certifications

• EMC: EN 61000-6-2 / EN 61000-6-4
• Safety: IEC 61010-2-201, UL 61010-2-201
• Marine: DNV GL, ABS (optional)
• Railway: EN 50155 (consult for specific variants)

Selection Considerations
When specifying this switch, please confirm: (1) Required fiber type and distance (multimode 2km vs. singlemode 15km), (2) Ambient temperature range at installation location, (3) Power supply voltage availability (24V DC standard), (4) Cabinet space and DIN rail compatibility, (5) Network topology (star, ring, or daisy-chain via fiber). Our application engineers can recommend optimal configuration based on your system architecture—provide site conditions and device count for tailored selection.

Extended Capabilities & Integration

Network Diagnostics
Front-panel LED indicators provide instant visual feedback for power status, port link/activity, and fiber signal quality. Simplifies troubleshooting during commissioning and maintenance without requiring diagnostic tools.

Scalable Network Architecture
Supports cascading with managed SCALANCE switches for hybrid network designs. Unmanaged edge switches handle local device connectivity while managed core switches provide VLAN segmentation, QoS, and network monitoring at aggregation layer.

Fiber Backbone Connectivity
Fiber ports enable noise-immune long-distance links between control rooms and remote equipment, eliminating ground loop issues and lightning surge risks common with copper cabling in outdoor or high-voltage environments.

Delivery, Service & Quality Assurance

Lead Time & Availability
Standard model 6GK5104-2BB00-2AA3 typically ships from stock within 3-5 business days. Custom fiber configurations or bulk orders may require 2-3 weeks—contact sales for current inventory status and expedited options.

Warranty & Support
Backed by 12-month manufacturer warranty covering defects in materials and workmanship. Technical support includes remote configuration assistance, firmware guidance (if applicable), and replacement coordination. On-site commissioning support available in select regions (consult for coverage).

Documentation & Resources
Each unit ships with quick installation guide, DIN rail mounting instructions, and wiring diagrams. Complete technical manual, CAD drawings (STEP/DXF), and TIA Portal integration notes available for download. Compliance certificates (CE, UL, etc.) provided upon request for project documentation.

Quality Standards
Manufactured under ISO 9001 quality management system with 100% factory testing. Each switch undergoes power-on verification, port connectivity check, and environmental stress screening before shipment to ensure field-ready reliability.

Frequently Asked Questions (FAQ)

Q: How does the SCALANCE X104-2 integrate with existing Ethernet networks?
A: This unmanaged switch operates as a standard IEEE 802.3 Ethernet device, compatible with any 10/100 Mbps network infrastructure. Simply connect RJ45 cables from your PLCs, HMIs, or other devices—no configuration required. For integration with managed networks, connect uplink port to your core switch; the X104-2 will transparently forward traffic while maintaining electrical isolation via fiber ports if needed.

Q: What is the maximum number of devices this switch can support?
A: With 4 copper ports and 2 fiber ports, you can directly connect up to 6 devices. For larger networks, cascade multiple switches using fiber backbone or copper uplinks. The 1024-entry MAC address table supports networks with hundreds of devices when properly segmented.

Q: What energy savings can be expected compared to older switches?
A: Modern SCALANCE switches consume approximately 8W versus 15-20W for legacy industrial hubs, reducing power draw by 40-60%. In 24/7 operations, this translates to ~70 kWh annual savings per switch—meaningful when deploying dozens of units across a facility. Low heat output also reduces cooling requirements in enclosed cabinets.

Q: What are the installation environment requirements and protection rating?
A: Rated IP30 for indoor control cabinet installation with -40°C to +70°C operating range. Requires mounting inside an enclosure for dust/moisture protection. For outdoor or washdown areas, install within IP65-rated cabinet. Ensure adequate ventilation (convection cooling) and avoid direct sunlight exposure on cabinet.

Q: Does this switch support remote monitoring and data acquisition protocols?
A: As an unmanaged switch, the X104-2 does not offer SNMP, web interface, or direct monitoring. However, it transparently passes PROFINET, Modbus TCP, OPC UA, and other industrial protocols. For network diagnostics and traffic analysis, consider managed SCALANCE models (X200, X300 series) which provide SNMP traps, port mirroring, and integration with SINEMA Server network management software.

Q: Can I mix multimode and singlemode fiber connections?
A: No—fiber port type is fixed at time of order (either both multimode OR both singlemode). Specify fiber requirements during purchase: multimode (2km, 62.5/125μm or 50/125μm) for intra-building links, or singlemode (15km, 9/125μm) for inter-building or long-distance connections. Fiber patch cables and SFP modules must match switch specification.

Get Expert Selection Assistance

To receive a tailored configuration recommendation, technical datasheet, or project quotation, please provide the following details: Project name and application type, installation environment (indoor/outdoor, temperature range), number of devices to connect, required fiber distance and type, power supply voltage available, cabinet space constraints, and any specific certifications needed (marine, railway, hazardous area). Our automation specialists will respond within 24 hours with optimized switch selection, wiring diagrams, and pricing.

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