Products

The SEL ICON is a wide-area-networking multiplexer optimized for industrial and utility applications. ICON virtual synchronous networking (VSN) preserves the performance characteristics of time-division multiplexing (TDM) when converting to Ethernet as a transport protocol. By combining TDM and Ethernet transport options with a comprehensive range of data interfaces, the ICON makes it easy to migrate legacy network technologies to a converged IT/OT packet-based solution.

Use the SEL-2126 Fiber-Optic Transfer Switch to maintain relay communications during bypass operations.

The SEL-2725 is an unmanaged five-port switch and copper-to-fiber media converter. Apply to build reliable, safe Ethernet networks in electrical substations, plants, and other mission critical sites.

The SEL-2726U Eight-Port Ethernet Switch is the dependable choice in Ethernet connectivity, whether it’s used in testing stations, laboratories, research and development, manufacturing, or other exacting work areas.

The SEL-2730M is a managed 24-port Layer 2 switch. Apply the switch to build reliable, safe Ethernet networks in electrical substations, plants, and other mission-critical sites. Connect to devices using shielded Category 5/5e/6 copper cables and single- or multimode LC fiber-optic cables.

The SEL-2730U is an unmanaged 24-port Ethernet switch, designed for the harsh environments commonly found in the energy and utility industries. The switch supports communications infrastructure built for engineering access, supervisory control and data acquisition (SCADA), and real-time data communications, while offering the same reliability found in SEL protective relays.

The SEL-2741 enables deny-by-default SDN—ideal for Ethernet applications requiring real-time control, measurement, and data acquisition, such as IEC 61850-based communications.

Communicate 500 meters with port-powered fiber-optic transceivers / modems.

Communicate up to 500 meters with port powered fiber-optic transceivers

Communicate up to 4 kilometers with port powered fiber-optic transceivers

Communicate up to 4 kilometers with port powered fiber-optic transceivers.

Communicate 2 to 15 kilometers with port-powered fiber-optic transceivers.

Communicate up to 500 meters on multidrop and point-to-point EIA-485 networks.

Communicate up to 4 kilometers on multidrop and point-to-point EIA-485 networks

Communicate up to 23 kilometers with port-powered single-mode fiber-optic transceivers.

Communicate from 16 to 80 kilometers with port-powered single-mode fiber-optic transceivers.

Communicate from 16 to 110 kilometers with port-powered single-mode fiber-optic transceivers. 

Connect EIA-232 devices to an EIA-485 network with tough, flexible SEL-2886 EIA-232 to EIA-485 Interface Converter.

Adds Ethernet connectivity to an SEL device using its EIA-232 serial port.

Convert asynchronous EIA-232 serial communications interfaces to the IEEE C37.94 optical standard.

Isolate EIA-232 and IRIG-B signal lines to reduce signal-ground current induced by adjacent high-current conductors.

Carry an SEL-2924 for an always-secure wireless EIA-232 connection.

Avoid exposing personnel to hazardous conditions by enabling them to control and monitor equipment from their trucks or other safe locations.

Instead of unplugging your modem, establish strong access controls with the SEL-3025 and use powerful AES-128/256 and SHA-1/256 to encrypt and authenticate serial links with the Secure SCADA Communications Protocol (SSCP).

The SEL-3031 combines three serial data ports in one radio, allowing up to three different connections and protocols to operate simultaneously. The radio transmits data in the license-free 900 MHz ISM band, providing an economical communications path and backup communications system.

The SEL-3060 is a multipurpose Ethernet radio for distribution automation wireless applications, including SCADA and engineering access.

The SEL-3061 Cellular Router is a secure wireless communication solution designed for critical applications. For electric utilities, the router provides connectivity to devices like recloser controls, motor-operated switches, capacitor banks, voltage regulators, substations, and much more. 

Economically add serial ports to communications processors or computers, and provide secure Ethernet access to serial products.

The SEL-3620 is the ideal substation access point and jump host to help satisfy NERC CIP requirements for securing the electronic security perimeter (ESP). The substation-hardened SEL-3620 secures all Ethernet and serial communications between the enterprise and remote networks, and interoperates with existing business IT and control systems using Internet Protocol Security (IPsec). The SEL-3620 manages passwords for and secures access to relays and IEDs.

The SEL-3622 hosts the same feature set as the SEL-3620 Ethernet Security Gateway in a smaller, low-power form factor and is perfect for cabinets and other low-power locations. 

Adds dial-up access to devices in harsh utility and industrial environments.

Use one pair of fibers for full-duplex serial communications plus IRIG-B time synchronization.