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Westermo Viper-3520-T20 Managed Ethernet Switch
Westermo Viper-3520-T20 Managed Ethernet Switch
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Lead Time: More Than 8 Weeks
Westermo Viper-3520-T20 Key Features
- Layer 2 functionality switching
- 20 x 100 Mbps Ethernet Ports (M12 D-coded connector)
- 1 x RS-232 Console Port (M12 B-coded connector)
- IP67-rated Metal body material
- Redundant 24 to 110 VDC power input
- Wallmount installation design
-
-40 to +70°C operating temperature

Description
The Westermo Viper-3520-T20 Managed Ethernet Switch is a next-generation networking solution for harsh industrial environments that demand uncompromised reliability and performance. Belonging to the advanced Viper-3520 series, this industrial Layer 2 switch is designed for applications that require high-speed data transfer, long-term durability, and dependable communication under extreme conditions. This Viper delivers exceptional network management capabilities for critical sectors such as transportation, energy, and process automation. As part of the Westermo Viper family, this device combines superior functionality with ruggedized construction, setting a new benchmark for industrial communication systems. The managed 20-port routing switch ensures smooth and secure data traffic control and guarantees optimized performance and uptime. The Westermo switch features intelligent software integration and a resilient hardware platform that together create a strong foundation for mission-critical operations. Its wall-mount installation design is perfect for limited-space installations where stability and vibration resistance are crucial. With a strong heritage of reliability, the Viper-3520-T20 Switch offers unmatched efficiency and reliability, empowering industries to build scalable and secure communication networks that perform consistently in even the toughest operational settings.
Layer 2 Functionality and High-Performance Switching
The Westermo Viper-3520-T20 Managed Ethernet Switch provides advanced Layer 2 functionality and enables efficient data routing, VLAN segmentation, and network redundancy for secure and optimized communication. With 20 x 100 Mbps Ethernet Ports (M12 D-coded connector) offers reliable connectivity for field devices, sensors, and controllers to ensure flexible integration across industrial systems. The inclusion of 1 x RS-232 Console Port (M12 B-coded connector) allows for simplified configuration, diagnostics, and system management. Together, these features establish a high-capacity communication backbone that ensures uninterrupted data exchange in automation and transportation networks.
Rugged Industrial Design and Reliability
The Viper-3520-T20 can operate with an IP67-rated Metal body design in harsh conditions such as high vibration, humidity, and dust exposure. This durable enclosure guarantees protection against mechanical stress and environmental hazards commonly encountered in heavy industries. Its wall-mount installation design allows secure and stable mounting, even on moving vehicles or tight enclosures. The switch operates within a wide temperature range of -40 to +70°C and maintains consistent performance in both freezing and high-heat environments. The 24 to 110 VDC input power range ensures flexible deployment and reliable power supply across varying industrial infrastructures, delivering continuous uptime and minimal maintenance requirements.
Power Efficiency and Network Stability
The Westermo Viper-3520-T20 Managed Ethernet Switch provides redundant power capabilities to ensure stable operation even during unexpected power fluctuations or system interruptions. Its intelligent energy efficiency features help reduce operational costs and maintain full network performance. The combination of Gigabit and Fast Ethernet ports enhances traffic prioritization, allowing critical data to flow smoothly across the system. Designed as a robust industrial Layer 2 switch, it seamlessly integrates into existing infrastructures, improving communication reliability and reducing downtime. This powerful Westermo switch brings together endurance, flexibility, and intelligence for industries that rely on continuous, secure, and efficient data communication.
Westermo Viper-3520-T20 Certifications
The Westermo Viper-3520-T20 Managed Ethernet Switch meets stringent industry standards and ensures exceptional safety and dependability across Industrial Automation and Railway applications. Certified under EN 45545-2 for fire protection and EN 50121-3-2 for electromagnetic compatibility in railway systems for mission-critical operations. Additional certifications such as EN 61000-6-2, EN 50121-4, EN 61000-6-4, and EN 61010-1 validate its robust electromagnetic resilience and electrical safety across industrial environments. Compliance with NFPA 130 further guarantees suitability for railway and tunnel applications, ensuring safety and performance even under extreme conditions. The CE marking confirms adherence to European quality and regulatory standards. All detailed technical specifications can be found in the Westermo Viper-3520-T20 datasheet.
To buy the Westermo Viper-3520-T20 Managed Ethernet Switch at a reasonable price, customers across the Middle East, including the UAE (Dubai, Abu Dhabi), KSA (Al Khobar, Riyadh), Kuwait, Qatar, and Oman, can find the best offers through Easy World Automation. This rugged and intelligent switch provides the perfect combination of performance, reliability, and scalability for industrial communication systems.
Attachment
Specification
Number of ports: 20 Ports
Other ports: 20 x 100 Mbps Ethernet Ports (M12 D-coded connector), 1 x RS-232 Console Port (M12 B-coded connector)
Backup: M12 USB
Input Current: Max 670 mA at 24 VDC, max 160 mA at 110 VDC
Input Voltage: 24 to 110 VDC
Operating Voltage: 16.8 to 143 VDC (14.4 VDC for 100 ms and 154 VDC for 1 s)
Fan / Fanless: Fanless
MTBF: MIL-HDBK-217F2: 530,000 h
Network working layers: Layer 2
Switch type: Managed
Dimensions: 178 x 160 x 61 mm (7.01 x 6.30 x 2.40 inches)
Housing: Full metal
Installation: Wall mounting
Operating Temperature: -40 to +70°C (-40 to +158°F) (+85°C for a limited time)
Operation Humidity: 5-95% relative humidity, operational, storage, and transport
Standards and Certifications: Power interruption: Class S2 (10 ms hold-up) according to EN50155; Ingress protection: IP66 and IP67; MIL-HDBK-217F-N2, GB; IEC 62380; Climate: EN 50155 class OT4/IEC 60571 class TX, Railway applications - Electronic equipment used on rolling stock, Rapid temperature variations class H2, IEEE 1478 class 1, condition E4 (incl Salt Mist), Environmental conditions for transit rail car electronic equipment; EMC: EN/IEC 61000-6-2, Immunity industrial environments, EN/IEC 61000-6-4, Emission industrial environments, EN 50121-4/IEC 62236-4, Railway signalling and telecommunications apparatus, EN 50121-3-2/IEC 62236-3-2 Railway applications – Rolling stock – apparatus, Tested and verified for Class S1, DB EMC Regulation 06, Commodity team Radio compatibility in VDB Rev 1.0 (Shunting Radio), Tested and verified for FCC part 15; Mechanical (Shock and vibration): EN 61373 category 1, class A and B, IEEE 1478 class 1, condition E4, including shock tests 10 g/30 ms and 20 g/11 ms in all directions; Insulation (Coordination and test): EN 50124-1, Railway applications – Insulation coordination, EN 50155/IEC 60571, Railway applications - Electronic equipment used on rolling stock; Fire protection: EN 45545-2, Fire protection on railway vehicles, NFPA 130, Fire protection for fixed guideway transit and passenger rail system; Safety: EN/IEC/UL 61010-1, -2-201, Safety requirements for electrical equipment for measurement, control, and laboratory use; Cybersecurity: IEC 62443-4-2 SL2, Security for industrial automation and control systems; Software: EN 50657:2017 Software Onboard Rolling Stock (Basic Integrity); Shock: IEC 60068-2-27; Vibration: IEC 60068-2-6; IEC 60068-2-64
Storage Temperature: -55 to +85°C (-67 to +185°F)
Weight: 1.6 kg
Protocols and management standards: Westermo configuration tool WeConfig, Web interface (HTTP and HTTPS), Command Line Interface (CLI) via console port, SSHv2 and Telnet, Local and Central Authentication (RADIUS/TACACS+), Role Based Access Control (RBAC), Password Compliance Policy, SNMPv1/v2c/v3, Secure Copy (SCP) for remote file upload and download, Local file management (via HTTP, FTP, TFTP and SCP), Load/save files from/to external memory., Configuration and Deployment using external memory., Tech support button, Flexible alarm and event handling system, RFC5424/RFC3164 Syslog (log files and remote syslog server), Port monitoring