Products

Replace remote terminal units and other devices with one reliable system.

Low-cost, high-speed bus protection, automated bus sectionalizing, breaker failure protection, and multiple terminal line protection. Interconnect up to 15 devices using  Mirrored Bits communications.

The Axion is a fully integrated, modular I/O and control solution suitable for many utility and industrial applications. It combines the communications, built-in security, and IEC 61131 logic engine of the SEL Real-Time Automation Controller (RTAC) product line with a durable suite of I/O modules that provide high-speed, deterministic control performance over an Ethernet network.

The SEL-2411 offers rugged I/O for SCADA, PLC, monitoring, and control in harsh physical and electrical environments.

The SEL-2411P Pump Automation Controller is a complete preconfigured, SCADA-ready system for control and monitoring of water and wastewater pump applications.

The SEL-2440 DPAC is a 48-point discrete programmable automation controller that is ideal for utility and industrial applications as a rugged and reliable I/O solution at an economical price.

The SEL-3373 PDC provides phasor data concentration and local archiving for up to 40 phasor measurement units (PMUs). It is designed to operate reliably in harsh substation environments and offers several innovative features. 

Combine the power of synchrophasor message processing with flexible programmable logic for wide-area protection and control applications. 

The SEL-3505/3505-3 RTACs are compact, lower-voltage versions of the SEL-3530 RTAC. All of the standard features of the RTAC are included in the SEL-3505/3505-3 RTACs, making them very powerful options for protocol conversion and secure communications gateways to remote intelligent electronic device (IED) installations.

The SEL-3532 is a Compact Flash image that easily transforms an SEL industrial computing platform to enable all of the standard features that are available in the SEL Real-Time Automation Controller (RTAC).

The SEL-3555 RTAC is the most powerful RTAC with unmatched performance and high speed logic capabilities for critical automation, protection, and control schemes. The integrated video port on the RTAC eliminates the need for an additional computer for viewing the HMI. The rugged and reliable design makes it ideal for operating in harsh environmental conditions.

The SEL-3573 Station PDC is a hardware-based phasor data concentrator with integrated archiving. It concentrates as many as 120 phasor measurement unit (PMU) inputs at rates as fast as 240 messages per second, exceeding the IEEE C37.118-2011 requirement of 60 messages per second. Additionally, the SEL-3573 includes a built-in archiving feature that can be used as part of a NERC PRC-002-2 disturbance recording system. Local archiving of data at each substation protects against loss of data, even in the event of a communications outage. The SEL-3573 offers archiving for both continuous and predefined trigger conditions, so it never misses capturing data necessary for post-disturbance analysis. The SEL-3573 provides the real-time performance needed for synchrophasor-based control schemes.