SEL-2730M | Managed Ethernet Switch with 9330-A Power Supplies

The SEL-2730M is a high-performance, ruggedized managed Ethernet switch engineered by Schweitzer Engineering Laboratories (SEL) specifically for critical infrastructure and harsh industrial environments. It provides reliable, deterministic networking with advanced security features, making it an essential component for power substation automation, utility communications, and industrial process control. Paired with dual 9330-A power supply modules, it ensures high availability and redundancy for mission-critical operations.

Technical Specifications

Parameter	Detail
Product Model	SEL-2730M
Power Supply Unit	9330-A (Redundant Config)
Manufacturer	SEL (Schweitzer Engineering Laboratories)
Function	Managed Layer 2/3 Ethernet Switch
Ports	Up to 24 x 10/100 Mbps (Fiber/Copper options)
Compliance	IEEE 1613, IEC 61850-3
Operating Temp	-40°C to +85°C
Dimensions (Approx.)	450mm x 300mm x 45mm
Weight	~4.0 kg
Country of Origin	USA

Application Fields

Substation Automation: Facilitating secure data transit for IEC 61850 GOOSE and sampled value traffic.
Smart Grid Infrastructure: Enabling remote monitoring and control of grid assets.
Harsh Industrial Environments: Deployment in utility plants, oil & gas facilities, and mining operations where vibration and temperature extremes are prevalent.
Network Redundancy: Creating resilient network loops to prevent downtime in critical automation systems.

Usage Instructions

Mounting: Rack-mount the switch in an industrial cabinet. Ensure that there is adequate space for airflow, as the device is designed for passive or forced-air cooling depending on the cabinet design.
Powering: The 9330-A power supplies should be wired to independent power sources (e.g., redundant DC battery systems) to provide seamless failover capability.
Connectivity: Connect fiber or copper cables to the appropriate RJ45 or SFP ports. Ensure the network topology follows your design (e.g., ring, star, or mesh) to support redundancy protocols like RSTP or SEL’s proprietary protocols.
Configuration: Access the managed features via the Web Interface, CLI, or SEL-5056 software. Configure VLANs, port security, and SNMP settings to meet your network security policy.
Monitoring: Utilize the front-panel LEDs to monitor link status and power health. Configure syslog or SNMP traps to alert your control center of any link drops or power supply transitions.

SEL SEL-2730M Managed Switch with 2 9330-A Power Supply

Frequently Asked Questions (Q&A)

Q: Why use the 9330-A redundant power supply?
- A: Redundancy is critical in utility networks. If one power source or module fails, the 9330-A configuration ensures the switch continues operating without a reboot, preventing loss of network visibility.
Q: Is the SEL-2730M compatible with non-SEL devices?
- A: Yes, it is a standard IEEE 802.3 Ethernet switch that supports common industrial protocols, making it compatible with any Ethernet-enabled IED, PLC, or workstation.
Q: How does this switch handle high electromagnetic interference (EMI)?
- A: It is designed to meet IEEE 1613 Class 2 standards, ensuring that it operates reliably in the high-EMI environment typical of high-voltage substations.