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3VR Three-Phase Voltage Reset

Quickly find faults in wind farm collector systems.

AR360 Overhead AutoRANGER Fault Indicators

Your AR360 Fault Indicators steer you quickly to temporary and permanent faults for fast troubleshooting, repair, and restoration of feeders.

AR-OH Overhead AutoRANGER

Install SEL AutoRANGER fault indicators on single- or three-phase overhead lines. The AutoRANGER constantly monitors the system load current and automatically adjusts its trip value based on these measurements.

AR-URD Underground AutoRANGER

Choose one low-maintenance fault indicator for your underground applications.

BER BEACON Electrostatic Reset

Combination LED and target display provides optimal night and day indications, and maximizes battery life.

BTRI_IR BEACON Timed Reset

Economical timed reset fault indicator eliminates false reset concerns.

BTRIP BEACON Field-Programmable Timed Reset

Select your trip value in the field. Stock one fault indicator for a variety of system conditions.

Category 5e Ethernet Cable

Implement Ethernet network connections with reliable fiber-optic or shielded-twisted-pair (STP) copper cables.

Coaxial Cable

Distribute IRIG-B time to SEL products and other devices, and connect GPS and radio antennas to SEL devices with an antenna connection.

CRD Current Reset

Load current-powered faulted circuit indicator (FCI) with no minimum voltage requirement provides a solution for low-voltage applications.

CT Split-Core Current Transformers

Install current monitoring sensors without interrupting service.

Custom Enclosure Solutions

SEL integrates multiple pieces of equipment and hardware (from SEL and other vendors) into a single assembly or kit, enabling one-stop shopping for parts and labor with a quick turnaround time.

Custom Panel Solutions

SEL designs, manufactures, tests, and delivers custom protection, control, and metering panels as well as control cabinets and retrofit doors. SEL panels are supported by an unmatched warranty and extraordinary customer service. Panels, cabinets, and doors are built to match customer specifications and needs.

Electrical Data Cables

SEL provides reliable finished (terminated) cables, built to IPC workmanship standards in our ISO 9001 certified plants – And, they are covered by our worldwide, ten-year warranty. A variety of standard and customized twisted pair and coaxial cables and connector combinations are available from SEL.

ERL Electrostatic Reset

Battery-free automatic reset fault indicator provides maintenance-free fault indication.

FC Fault Counters

Troubleshoot problematic sections of overhead systems.

GFD Ground Fault Detector

Reliable ground fault detection for three-conductor cable applications.

ICON Integrated Communications Optical Network

The SEL ICON provides a new approach to solving voice and data communications network design. The ICON combines SONET and Ethernet technologies with flexible drop interfaces to provide an integrated data and voice communications solution in a single platform.

MB Manual Button Reset Fault Indicator

Economical troubleshooting device with 50-plus years of field-proven reliability.

MR Manual Reset

Economical troubleshooting device with 50-plus years of field-proven reliability.

MW Voltage Sensors

Economically sense voltage and eliminate the need for potential transformers or analog sensors.

PILC Paper-Insulated Lead Cable Fault Indicator

Find faults faster on urban systems with the PILC Fault Indicator.

Power Supplies Wall-Mount Power Supplies

SEL sells wall-mount AC power supplies as accessories for communications and networking equipment. These AC power supplies are commercial temperature rated and appropriate for testing and office environments.

powerCORE Substation Control Enclosures

SEL control enclosures are designed, manufactured, tested, integrated, installed, and commissioned following the leading quality standards, warranty, and vertical integration production philosophy that you have come to expect from SEL.

RadioRANGER Wireless Fault Indication System

Winner of UTC 2007 Best Wireless Equipment award. The RadioRANGER solution reduces the need to access vaults or open pad-mount enclosures to retrieve FCI status, reducing fault-locating time and improving utility personnel safety.

SCT Submersible Split-Core Current Transformers

A submersible split-core current transformer provides reliable use in subsurface vaults where flooding can occur and where it is difficult to open the primary conductor to install a solid-core-type CT.

SEL Cables

SEL manufactures high-quality cables for connecting a variety of devices. You can order cables to specific lengths to meet your needs. Each cable is quality tested to ensure reliability and proper operation.

SEL Compass Software and File Download Organization

SEL Compass offers a visual, highly intuitive interface for easy notification of product updates as well as download and sharing of the many products and information that SEL provides.

SEL-1102 Computing Platform for Value-Added Resellers

With an MTBF of 10x over other industrial computers and 10 year warranty, SEL's computers are reliable and withstands -40C to +75C. Quality and service are what we have built our name on. Our computers are built to the same tough standards as our protective relays.

SEL-2032 Communications Processor

With our recent price reduction and free SEL-5020 Settings Assistant Software, now is the right time to upgrade your RTU.

SEL-2100 Logic Processor

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.

SEL-2126 Fiber-Optic Transfer Switch

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

SEL-2240 Axion

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.

SEL-2401 Satellite-Synchronized Clock

Compact, precision-time device for limited space and high-accuracy timing to ±100 nanoseconds.

SEL-2404 Satellite-Synchronized Clock

The SEL-2404 is a satellite-synchronized time source with a high-visibility display. Get precise time in harsh environments at a commercial price.

SEL-2407 Satellite-Synchronized Clock

The SEL-2407 provides time display, reliability, durability and high-accuracy timing to ± 100 nanoseconds.

SEL-2411 Programmable Automation Controller

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

SEL-2414 Transformer Monitor

The SEL-2414 Transformer Monitor provides an exceptional combination of monitoring, control, and communications in a compact package.

SEL-2431 Voltage Regulator Control

The SEL-2431 is compatible with most 32-step, single-phase voltage regulators manufactured in North America. Use various hinge and wiring kits to easily upgrade existing controls without removing the regulator from service. Quickly integrate the SEL-2431 into existing communications schemes using EIA-232, EIA-485, fiber-optic ST, or fiber-optic V-pin connectors.

SEL-2440 DPAC Discrete Programmable Automation Controller

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.

SEL-2488 Satellite-Synchronized Network Clock

The SEL-2488 raises the bar for satellite-synchronized clocks by providing industry-leading accuracy, time distribution, security, and ease of use not offered in other critical infrastructure clocks.

SEL-2505 Remote I/O Module

Apply SEL-2505 Remote I/O Modules to use two optical fibers instead of 32 wires to reduce costs, improve safety, and boost reliability.

SEL-2506 Rack-Mount Remote I/O Module

Rack-Mount Remote I/O Module with 8 digital inputs and 8 digital outputs using SEL Mirrored Bits communications.

SEL-2507 High-Speed Remote I/O Module

Connect the SEL-2507 to the SEL-T400L Time-Domain Line Protection or another SEL-2507 at 115.2 kbps to provide ultra-high-speed remote I/O.

SEL-2515 Remote I/O Module

Adds I/O capability (8 DI, 8 DO) using Fast Message.

SEL-2516 Rack-Mount Remote I/O Module

Adds I/O capability (8 DI, 8 DO) using Fast Message.

SEL-2522 Alarm Panel

Easily view status of station alarms.

SEL-2523 Annunciator Panel

The SEL-2523 enables you to easily annunciate alarms and to use flexible communications links that eliminate duplicate I/O wiring to RTU and DCS systems, receive data for local logic operation or display, and transmit information to remote sites.

SEL-2533 Annunciator

The compact, ten-window SEL-2533 with communications ports is ideal for displaying alarm conditions and notifying personnel for each individual rack, panel, generator, equipment block, power line terminal, assembly line, conveyor, or other apparatus.

SEL-2595 Teleprotection Terminal

SEL-2595 Teleprotection Terminal provides secure, high-speed contact transfer through communications multiplexers, using an IEEE C37.94 standard fiber-optic interface.

SEL-2600 RTD Module

Measure and transmit data from up to 12 RTDs and a single contact status located in transformers, breakers, motors, generators, or other system apparatus.

SEL-2652 Trip Coil Monitor

Although a trip coil monitor may be a small part of a protection system, its misoperation can be a huge problem and can cost utilities time and money. The SEL-2652 brings increased reliability and versatility to trip coil monitoring, giving you peace of mind that your circuit breakers will operate when necessary.

SEL-2664 Field Ground Module

Add the SEL-2664 Field Ground Module to the SEL-300G or SEL-700G to protect all the critical components in your generator with one comprehensive relay. Or, add the SEL-2664 to the SEL-2664S to complete ground fault protection on both the rotor and stator.

SEL-2664S Stator Ground Protection Relay

Protect high-impedance grounded generators from ground faults at standstill, during startup, and while running with the multisine frequency injection and neutral overvoltage-based protection in the SEL-2664S.

SEL-2725 Five-Port Ethernet Switch

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.

SEL-2726U Eight-Port Ethernet Switch

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.

SEL-2730M Managed 24-Port Ethernet Switch

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.

SEL-2730U Unmanaged 24-Port Ethernet Switch

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.

SEL-2740M Managed Ethernet Switch

The SEL-2740M is designed for the harsh conditions found in the energy and industrial environments. 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-2740M meets or exceeds the IEEE 1613 (Class 2), IEC 61850-3, and IEC 60255 industry standards for vibration, electrical surges, fast transients, extreme temperatures, and electrostatic discharge for communications devices in electrical substations.

SEL-2740S Software-Defined Network Switch

The SEL-2740S is designed for the harsh environments commonly found in the energy and utility sectors. The SEL-2740S is the industry's first SDN-enabled switch. Built for the highest reliability and best performance, it revolutionizes the way networks are engineered and maintained.

SEL-2800 Fiber-Optic Transceivers

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

SEL-2810 Fiber-Optic Transceivers With IRIG-B

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

SEL-2812 Fiber-Optic Transceivers With IRIG-B

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

SEL-2815 Fiber-Optic Transceiver/Modem

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

SEL-2820 Multimode Fiber-Optic EIA-485 Transceivers

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

SEL-2824 Multimode Fiber-Optic EIA-485 Transceivers

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

SEL-2829 Single-Mode Fiber-Optic Transceiver/Modem

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

SEL-2830 Single-Mode Fiber-Optic Transceiver/Modem

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

SEL-2831 Single-Mode Fiber-Optic Transceiver/Modem

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

SEL-2886 EIA-232 to EIA-485 Interface Converter

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

SEL-2890 Ethernet Transceiver

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

SEL-2894 Interface Converter

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

SEL-2910 Port Isolator

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

SEL-2924 Portable BLUETOOTH Serial Adapter

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

SEL-2925 BLUETOOTH Serial Adapter

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

SEL-3025 Serial Shield

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).

SEL-3031 Serial Radio Transceiver

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.

SEL-3060 Ethernet Radio

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

SEL-3094 Interface Converter

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

SEL-311L Line Current Differential Protection and Automation System

Use the SEL-311L Relay with integral four-zone distance backup for easy-to-apply, high-speed line protection.

SEL-321-5 Phase and Ground Distance Relay

Select the SEL-321-5 for 50 Hz applications requiring enhanced single-pole tripping, phase and ground distance, directional overcurrent, and negative-sequence protection.

SEL-3332 Intelligent Server

With an MTBF of 10x over other industrial computers and 10 year warranty, SEL's computers are reliable and withstands -40C to +75C. Quality and service are what we have built our name on. Our computers are built to the same tough standards as our protective relays.

SEL-3351 System Computing Platform With Windows XP Professional

With an MTBF of 10x over other industrial computers and 10 year warranty, SEL's computers are reliable and withstands -40C to +75C. Quality and service are what we have built our name on. Our computers are built to the same tough standards as our protective relays.

SEL-3354 Embedded Automation Computing Platform

This tough computer by SEL includes different processor options, more storage options, more USB and ethernet options; and with no moving parts and using error correcting memory technologies it still achieves reliability expectations and specifications.

SEL-3355 Rack-Mount Rugged Computer

Designed as a server-class computer, the tough SEL-3355 Computer is built to withstand harsh environments in utility substations, industrial control, and automation systems.

SEL-3360 Compact Industrial Computer

The SEL-3360 is a Compact Industrial Computer with Intel Core i7 multicore computer with no moving parts built to keep critical processes running with the highest MTBF and longest warranty.

SEL-3373 Station Phasor Data Concentrator (PDC)

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. The SEL-3373 Station PDC is a hardware-based phasor data concentrator with integrated archiving. The SEL-3373 provides the real-time performance needed for synchrophasor-based control schemes.

SEL-3378 Synchrophasor Vector Processor

Combine the power of synchrophasor message processing with flexible programmable logic for wide-area protection and control applications. The Synchrophasor Vector Processor (SVP), the first real-time synchrophasor programmable logic controller, collects synchrophasor messages from relays and phasor measurement units (PMUs). The SVP time-aligns incoming messages, processes them with an internal logic engine, and sends control commands to external devices to perform user-defined actions. Additionally, the SVP can send calculated or derived data to devices such as other SVPs, phasor data concentrators (PDCs), and monitoring systems.

SEL-3390E4 Network Adapter Card

The SEL-3390E4 Network Adapter is a PCIe card designed to provide network expansion capabilities for SEL's flexible, robust computer line.

SEL-3390S8 Serial Adapter Card

The SEL-3390S8 Serial Adapter is a PCIe expansion card designed to expand the serial I/O capabilities of SEL's flexible, robust computer line.

SEL-3390T Universal Time Card

The SEL-3390T Universal Time Card is a PCIe card designed to provide complete time management for a computer, such as the SEL-3355 Computer. The SEL-3390T allows the user to manually select from IRIG-B, the Precision Time Protocol (PTP), and host time sources.

SEL-3400 IRIG-B Distribution Module

The SEL-3400 is an inexpensive, reliable, and precise way to distribute demodulate IRIG-B time information. With twelve IRIG-B distribution ports and a bright display, the SEL-3400 is ideal for time distribution in panels.

SEL-3401 Digital Clock

High-visibility digital clock display synchronized by IRIG-B time signal may be connected together to make synchronized clock system.

SEL-3405 High-Accuracy IRIG-B Fiber-Optic Transceiver

Send delay-compensated demodulated IRIG-B up to 4 km over fiber-optic cable with SEL-3405 High-Accuracy IRIG-B Fiber-Optic Transceivers.

SEL-3505/3505-3 Real-Time Automation Controller (RTAC)

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.

SEL-351 Protection System

The SEL-351 Relay has built-in Ethernet and IEEE C37.118 synchrophasors, and is ideal for directional overcurrent applications. Optional Mirrored Bits communications and power quality monitoring add flexibility to solutions. The SEL-351 is the protection standard for utility and industrial electrical systems around the world.

SEL-351A Protection System

The SEL-351A Protection System has built-in Ethernet and IEEE C37.118 synchrophasors, and is the economical solution for overcurrent protection. Easy-to-use feeder protection and innovative features like SEL’s Best Choice Ground Directional Element logic and SELogic control equations provide superior protection on utility and industrial power systems.

SEL-351R Falcon Recloser Control

The SEL-351R Falcon Recloser Control is great for simple recloser control upgrades. The small lightweight aluminum enclosure will not rust and is easy for one person to install. This control has advanced directional overcurrent and frequency elements, and Mirrored Bits for communications-assisted protection schemes.

SEL-351R Recloser Control

The SEL-351R Recloser Control is perfect for simple recloser control upgrades with advanced directional overcurrent and frequency elements, and Mirrored Bits communications-assisted protection schemes. The SEL-351R is compatible with traditional 14-pin reclosers.

SEL-351RS Kestrel Single-Phase Recloser Control

The SEL-351RS Kestrel is a lightweight, advanced recloser control with integrated logic, communications, and comprehensive protection for single-phase applications. Convenient operator controls allow easy local access to metering and event data.

SEL-351S Protection System

The SEL-351S Relay is for industrial and utility feeder protection. Provide wide-area system stability awareness with IEEE C37.118 synchrophasors. Simplify communications with built-in Ethernet. Large, easy-to-use operator controls and optional independent SafeLock trip/close pushbuttons enhance operation and simplify panels. Protect system performance with high-accuracy metering, over- and underfrequency elements, and directional elements with SEL’s Best Choice Ground Directional Element logic.

SEL-352 Breaker Failure Relay

Apply an SEL-352 Breaker Failure Relay per circuit breaker to detect breaker failure conditions for single-pole and three-pole tripping applications with any bus/breaker arrangement.

SEL-3530/3530-4 Real-Time Automation Controller (RTAC)

The SEL-3530 RTAC is a complete automation platform designed for substation and industrial control applications. An IEC 61131 logic engine and multiple client/server protocols are standard.

SEL-3532/3533 RTAC Conversion Kits

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).

SEL-3555 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.

SEL-3610 Port Server

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

SEL-3620 Ethernet Security Gateway

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 intelligent electronic devices (IEDs) with an authentication proxy that integrates the Lightweight Directory Access Protocol (LDAP) and Remote Authentication Dial-In User Service (RADIUS) for multifactor authentication. The SEL-3620 includes integrated exe-GUARD whitelist anti-malware, eliminating the need for any NERC Technical Feasibility Exceptions (TFEs).

SEL-3622 Security Gateway

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. The SEL-3622 has integrated exe-GUARD™ technology to provide strong anti-malware, password management, network communications security, and true multifactor authentication to a small number of relays/IEDs. The SEL-3622 also provides physical security controls, including an accelerometer, light sensor, and cabinet door sensor, that will alert on physical security or cybersecurity events.

SEL-387 Current Differential and Overcurrent Relay

Protect and control any two-, three-, or four-winding power transformer with the SEL-387, which provides thermal and through-fault monitoring, and with SELogic Control Equations, can detect breaker failure.

SEL-387A Current Differential and Overcurrent Relay

Apply the SEL-387A to protect any two-winding power transformer and perform predictive maintenance based on accumulated through-fault duty (as compared to transformer capability as defined in ANSI Standard C57.109).

SEL-387E Current Differential and Voltage Relay

Protect power transformers with up to three windings, as well as reactors, generators, large motors, and other multi-terminal power apparatus.

SEL-387L Line Current Differential Relay

Use SEL-387L Line Current Differential Relays for economical, easy-to-apply line protection.

SEL-4000 Relay Test System

The SEL-RTS Relay Test System is designed for testing protective relays having low-level test capabilities. The system consists of the SEL-AMS Adaptive Multichannel Source and either the SEL-5401 or SELtest software.

 

SEL-411L Advanced Line Differential Protection, Automation, and Control System

With comprehensive distance and differential protection the SEL-411L allows you to stock one relay for all transmission lines. The SEL-411L is also the only relay with traveling wave fault location which pinpoints faults to the nearest tower or span.

SEL-4388 Mirrored Bits Tester

The SEL-4388 gives engineers and technicians the power to accelerate commissioning and bench testing, and to improve cable identification, training, and maintenance.

SEL-451 Protection, Automation, and Bay Control System

Quickly integrate bay control status and control for breakers and disconnect switches with full automation and protection in one device. With advanced synchrophasor measurement, the SEL-451 provides system stability awareness. Choose between Ethernet and serial communications ports with DNP3 and IEC 61850 protocols.

SEL-4520 Arc-Flash Test Module

The SEL-4520 provides a convenient way to test the operation of arc-flash detection relays installed in metal-clad and metal-enclosed switchgear. The SEL-4520 is used to test the SEL-751 and SEL-751A Feeder Protection Relays and other arc-flash detection relays that use light and overcurrent for sensing an arc-flash event.

SEL-487B Bus Differential and Breaker Failure Relay

Provide low-impedance bus differential protection, dynamic zone configuration, circuit breaker failure protection, backup overcurrent protection, check zones and voltage inputs for increased security.

SEL-487E Transformer Protection Relay

The SEL-487E provides comprehensive protection, metering, monitoring, and automation of power transformer applications with up to five 3-phase restraint current inputs, two 3-phase voltage inputs, and three independent neutral current inputs with restricted earth fault (REF) elements.

SEL-487V Capacitor Protection and Control System

Simplify relay settings and reduce inventory with one relay for all your capacitor bank needs. The versatile SEL-487V protects and controls both grounded and ungrounded, single- and double-wye capacitor bank applications.

SEL-5030 acSELerator QuickSet Software

Easily set and commission devices using acSELerator QuickSet SEL-5030 Software.

 

SEL-5032 acSELerator Architect Software

acSELerator Architect SEL-5032 Software is a Microsoft Windows application that streamlines the configuration and documentation of IEC 61850 control and SCADA communications.

SEL-5033 acSELerator RTAC Software

acSELerator RTAC is a graphical, easy-to-use tool that helps users quickly and easily configure the SEL-3530 Real-Time Automation Controller (RTAC).

SEL-5035 acSELerator Diagram Builder Software

acSELerator Diagram Builder SEL-5035 Software is a Microsoft Windows application that enables the creation and management of HMI visualization projects for all of the RTACs in your system.

SEL-5045 acSELerator Team Software

Improve productivity, manage device data, and collect data quickly and efficiently with Team Software.

SEL-5073 synchroWAVe Phasor Data Concentrator (PDC) Software

The SEL-5073 synchroWAVe Phasor Data Concentrator Software provides phasor data concentration and archving for more than 500 phasor measurement units.

SEL-5078-2 synchroWAVe Central

Quickly translate power system data into information with synchroWAVe Central.

SEL-547 Distributed Generator Interconnection Relay

Apply low-cost, compact package with essential protection and control elements for distributed generation.

SEL-551 Overcurrent/Reclosing Relay

The SEL-551 Overcurrent/Reclosing Relay replaces the many relays, control switches, and wiring required in traditional distribution substation protection and control panels. The relay also replaces line recloser control packages at a fraction of the cost.

SEL-551C Overcurrent/Reclosing Relay

The SEL-551C Overcurrent/Reclosing Relay combines overcurrent protection, built-in I/O, enhanced communications features, and multiple-shot reclosing in one compact relay. Great for industrial, commercial, and utility, primary or secondary overcurrent protection.

SEL-5601-2015 synchroWAVe Event 2015

synchroWAVe Event 2015 can plot relay oscillography, display phasors, and monitor digital status.

SEL-5630 acSELerator Meter Reports

SEL-5630 Meter Reports enhances the visualization and analysis of data captured by SEL meters in your system.

SEL-587Z High-Impedance Differential Relay

Provide single-zone high-impedance bus differential protection, backup overcurrent protection, and breaker failure protection for any number of terminals in a bus. Use the simple settings and dedicated same-ratio CTs to create a cost-effective and easily expandable bus protection solution.

SEL-651R Advanced Recloser Control

Use the SEL-651R for your most demanding recloser applications. The SEL-651R is a plug-compatible replacement for most Kyle/Cooper FXA, FXB, and Form 3, 3A, 4, 4A, 4C, 5, and 6 recloser controls. Built-in harmonic metering and voltage sag, swell, and interruption reporting help improve power quality.

SEL-651RA Recloser Control

The SEL-651RA Recloser Control offers exceptional protection and communications capabilities for Automatic Network Reconfiguration and other distribution automation needs. These capabilities assist you in maintaining reliable service to as many customers as possible in the event of a fault.

SEL-700G Generator Protection Relay

The SEL-700G is the right solution for utility and industrial generator protection, with an autosynchronizer, flexible I/O, and advanced communications. Apply the SEL-700G for comprehensive primary and backup generator protection.

SEL-701 Motor Protection Relay

Monitor and Control Critical Substation Apparatus With One Powerful Package

SEL-710 Motor Protection Relay

The SEL-710 Motor Protection Relay dynamically calculates slip. This premiere motor protection scheme allows maximum start times. Thermal motor protection models give the SEL-710 advanced protection beyond industry standards.

SEL-734 Revenue Meter

The SEL-734 Meter exceeds ANSI and IEC Class 0.2 accuracy with four-quadrant energy and demand metering. Advanced load profile trending compatible with MV-90®, DNP3, and Modbus® protocols ensures integration with practically any billing system.

SEL-734B Advanced Monitoring and Control System

The SEL-734B provides advanced monitoring and control capabilities for applications such as three-phase capacitor bank control and feeder automation.

SEL-734T Advanced Digital Transducer

Replace monitors and transducers; monitor real-time power, energy, and power quality; and communicate this data in real-time with the new surface-mount SEL-734T Advanced Digital Transducer.

SEL-735 Power Quality and Revenue Meter

The SEL-735 Power Quality and Revenue Meter passes accuracy requirements three times more stringent as the ANSI C12.20 Accuracy Class 0.2 standard. Advanced load profile trending, compatible with Itron® MV-90, DNP3, and Modbus protocols, ensures integration with practically any billing system. In addition to a full set of revenue metering features, advanced power quality monitoring will report costly system disturbances.

SEL-749M Motor Relay

Use the SEL-749M to protect and control all types of three-phase motors, including two-speed and reduced-voltage start motors.

SEL-751 Feeder Protection Relay

The SEL-751 is ideal for directional overcurrent, fault location, arc-flash detection, and high-impedance fault detection applications. Flexible I/O options, easy mounting, and fast settings make the SEL-751 the right solution for industrial and utility feeder protection.

SEL-751A Feeder Protection Relay

The SEL-751A offers industrial and utility feeder protection with flexible I/O options, easy retrofit, and fast setup and configuration. The SEL-751A provides complete feeder protection with overcurrent, voltage, and frequency elements. The SEL-751A remediates arc-flash hazards with arc-flash detection.

SEL-7830 Configurable Radio Cabinet

The SEL-7830 Configurable Radio Cabinet has space for two SEL radios, or a radio and the SEL-3505 Real-Time Automation Controller (RTAC).

SEL-787 Transformer Protection Relay

The SEL-787 Relay is a versatile, two-winding current differential relay that protects industrial transformers. Monitor transformer health with cumulative through-fault current recording, and for the first time in the industry, automatically check and generate differential compensation settings with the Commissioning Assistant Software.

SEL-787-3E/-3S/-4X Transformer Protection Relay

Provide complete current differential and overcurrent protection for three- and four-winding transformers. Select the SEL-787-3E or SEL-787-3S for current- and voltage-based protection on three-terminal transformers, and choose the SEL-787-4X for current differential and overcurrent-based protection on four-winding transformers.

SEL-8315 Phase Comparison Faulted Circuit Indicator

Quickly identify faults in transmission cable splices and communicate to line crews using the RadioRANGER.

SEL-849 Motor Management Relay

The SEL-849 provides current, voltage, and thermal-based protection, arc-flash detection, and power metering for motor protection applications.

SEL-9192 Utility-Grade USB Modem

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

SEL-9220 Fiber-Optic Adapter for SEL-300 Series Relays

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

SEL-9321 Low-Voltage DC Power Supply

Use station battery to power low-voltage communications and instrumentation devices.

SEL-9322 15 VDC Power Supply

Use station battery to power low-voltage communications and instrumentation devices.  Compatible with telecommunication battery backup including cell tower sites.

SEL-9331 Power Supply

The SEL-9331 is a switch-regulated +12 Vdc power supply designed to supply power to SEL’s line of industrial computers. The SEL-9331 is also flexible enough to provide power for other equipment as well.

SEL-9501 Contact Arc Suppressor

Decrease maintenance costs, increase contact reliability/dependability, and reduce destructive dc circuit overvoltages by applying the self-powered SEL-9501 Arc Suppressor to dc circuits.

SEL-9502 Contact Arc Suppressor

Increase contact reliability and significantly reduce maintenance costs.

SEL-9524 GNSS Antenna

The SEL-9524 GNSS antenna for critical infrastructure applications is capable of receiving signals from both GPS and GLONASS satellite constellations. It is manufactured to be robust and reliable.

SEL-9929 Satellite-Synchronized Clock Display Kit

The SEL-9929 Kit is a ready-assembled kit consisting of the SEL-2401 Satellite-Synchronized Clock, the SEL-3401 Digital Clock Display, and all necessary accessories.

SEL-C662/C663 USB Serial Cables

Add a six-foot or fifteen-foot EIA-232 serial port cable to a PC USB port to communicate with SEL relays and other devices with EIA-232 serial ports.

SEL-C804 Multimode Arc-Flash Detection Fiber-Optic Cables

Use arc-flash detection cables with SEL-751 and SEL-751A Relays to protect people and equipment from arc-flash events.

SEL-C805 200 µm Multimode Fiber-Optic Cable

Safely connect SEL fiber-optic transceivers, I/O modules, and Ethernet devices.

SEL-C807 62.5/200 µm Multimode Fiber-Optic Cable

SEL provides high-quality fiber optic cable solutions in customer specified lengths. Various cables sizes, jacket types, and strand counts are available. Field termination kits are also available.

SEL-C808 62.5/125 µm Multimode Fiber-Optic Cable

SEL provides high-quality fiber optic cable solutions in customer specified lengths. Various cables sizes, jacket types, and strand counts are available. Field termination kits are also available.

SEL-C809 9 µm Single-Mode Fiber-Optic Cables

Safely connect your EIA-232 communications ports using SEL fiber-optic cable and SEL fiber-optic transceivers.

SEL-LPS Linear Power Supply

Provide auxiliary dc power to your protective relays in the classroom or lab.

SEL-RS43/RS52/RS86 Rotary Switches

SEL switches are the most robust and high-contact density product in the market with up to 60 double-break contacts on 15 decks, a nominal current of 30 A, and an interrupting current of 8 A at 125 V.

SEL-T400L Time-Domain Line Protection

With breakthrough time-domain technologies, the SEL-T400L Time-Domain Line Protection securely trips in as fast as 1 millisecond, records events with sampling up to 1 MHz, and detects faults accurately to the nearest tower with single- and double-ended fault locators.

SR Secondary/Low-Voltage Reset

Arms and resets from transformer secondary voltage—no minimum load current necessary.

TPR Test Point Reset

The most economical fault-indicating solution for elbow test point applications.

TR Timed Reset

Automatic timed reset provides permanent and transient fault-finding capability.

VIN Voltage Indicators

Improve safety by indicating the presence of voltage.

WSO Wireless Sensor for Overhead Lines

This distribution automation sensor stores load data and monitors the distribution line for loss of current or fault events. Reports are transmitted to an access point on a communications network using an integrated radio.