SEL-2730M Managed Switch with Dual 9330-A Power Supplies

Product Parameters

• Model Number: SEL-2730M
• Manufacturer: Schweitzer Engineering Laboratories (SEL)
• Power Supply Model: 9330-A (Dual Redundant Configuration)
• Port Configuration: 24 Fast Ethernet ports (10/100 Mbps) and 4 Gigabit Ethernet ports
• Operating Voltage: 125/250 Vdc or 120/240 Vac (High-voltage power supply option)
• Switching Capacity: 12.8 Gbps nonblocking
• Management Protocols: SNMP v1/v2c/v3, HTTPS, SSH, Syslog
• Cybersecurity: Syslog, IEEE 802.1X, MAC-based port security

Product Description The SEL-2730M is a ruggedized, managed Ethernet switch designed for the harsh environments found in utility substations and industrial facilities. This specific configuration includes two 9330-A power supply modules, providing full hardware redundancy to ensure continuous network uptime even in the event of a power source failure. The switch meets stringent IEEE 1613 and IEC 61850-3 standards, offering superior resistance to electromagnetic interference, electrostatic discharge, and extreme temperatures without the need for internal cooling fans.

Product Applications This managed switch is primarily used for mission-critical communications in electrical power substations, renewable energy sites, and heavy industrial automation. It facilitates high-speed data exchange for protective relays, automation controllers, and SCADA systems. The dual power supply configuration makes it ideal for applications requiring high availability, such as smart grid monitoring and real-time control networks where downtime is not an option.

Product Specifications

• Weight: 4.50 kg (with dual power supplies)
• Dimensions: 4.4 cm x 48.3 cm x 30.2 cm (Standard 1U 19-inch Rack Mount)
• Country of Origin: United States (USA)
• Operating Temperature: -40°C to +85°C

Operational Precautions

• Redundancy Testing: Periodically verify the health of both 9330-A power supplies via the management interface to ensure the redundant failover mechanism is active.
• Grounding: Ensure the switch chassis is properly connected to the station ground bus using the designated grounding lug to protect against electrical surges.
• Firmware Security: Keep the SEL-2730M firmware updated to the latest version to maintain robust cybersecurity defenses and ensure compatibility with modern network protocols.
• Port Protection: Use dust caps on any unused SFP or RJ45 ports to prevent environmental contaminants from interfering with fiber optic or copper connections.

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