Siemens SCALANCE SC636-2C Industrial Security Appliance

Description

The Siemens SCALANCE SC636-2C is a high-performance security module designed to protect industrial networks and automation systems. Acting as a firewall and VPN gateway, it provides robust defense against unauthorized access and cyber threats. Its compact design is suitable for DIN rail mounting in control cabinets, making it an ideal solution for network segmentation and secure remote access in demanding industrial environments.

Specifications

• Manufacturer: Siemens
• Product Series: SCALANCE
• Model: SC636-2C
• Part Number: 6GK5636-2GS00-2AC2
• Function: Firewall, VPN Gateway (IPsec)
• Number of Ports: 6
• Port Type: 4x RJ45 (10/100/1000 Mbit/s), 2x Combo Ports (RJ45 or SFP)
• Power Supply: 24V DC, redundant input
• Operating Temperature: -40 deg C to +70 deg C
• Mounting: DIN Rail

Label Info

• Model: SCALANCE SC636-2C
• (1P) Part Number: 6GK5636-2GS00-2AC2
• (S) Serial Number: SVP R3156634
• (23S) MAC Address: 38-4B-24-AE-75-DF

Application

This security appliance is perfectly suited for cell protection concepts in industrial automation, securing communication between different network segments, and enabling secure remote maintenance via VPN tunnels. It is commonly used in manufacturing, energy, and transportation sectors.

Country of Origin

Made in Germany.

CO2 Impact

Choosing this pre-owned device saves an estimated 36 kg of CO2 compared to manufacturing a new one. This is a sustainable choice for your automation needs.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

The SC636-2C supports a wide range of Siemens SFP transceivers for both multi-mode and single-mode fiber optic connections, typically for 1000 Mbit/s (Gigabit Ethernet). It is recommended to use official Siemens SCALANCE SFP modules for guaranteed compatibility and performance.

Yes, the SCALANCE SC636-2C is a powerful security appliance that fully supports both NAT (including NAPT and 1:1 NAT) and secure VPN tunnels (IPsec). This allows you to securely connect remote machines or entire networks while managing internal IP address schemes.

Firmware updates are performed via the Web-Based Management (WBM) interface or using the SINEC NMS network management system. The firmware file can be downloaded from the Siemens Industry Online Support (SIOS) website and then uploaded to the device through the administration interface. A device reboot is typically required to activate the new firmware.

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Last Update: Friday, March 13, 2026