| What's New? |
 Introducing the New SEL-751A Feeder Protection Relay—Same SEL Reliability!
 The SEL-751A Feeder Protection Relay is a versatile and economical solution with flexible protection and multiple communications options for industrial and utility applications.
Protection, Control, and Automation Capabilities
The SEL-751A is designed to provide powerful and flexible feeder protection in a compact package, including under- and overvoltage, overcurrent, time-overcurrent, and frequency elements. Easily implement custom configuration and operation with SELOGIC® control equations.
Quickly Retrofit Existing Installations
Easily retrofit existing equipment with mounting adapters designed for existing cutouts.
Multiple Communications Protocols and Media Options
The versatile SEL-751A has many communications protocol options, including IEC 61850, Modbus® RTU, ModbusTCP, DeviceNet™, Telnet, FTP, and MIRRORED BITS®. Media options include Ethernet 10/100BASE-T, EIA-232 , EIA-485, and fiber-optic serial.
Reduce Arc-Flash Hazard
Reduce the danger of explosive arc-flash incidents by reducing the available fault current energy or removing personnel from the danger zone. Coordinate protection for shorter clearing times, enable instantaneous elements while maintenance is being performed, and remain outside the danger zone with wireless or remote communications.
 Learn more about the SEL-751A Feeder Protection Relay
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 Industrial Power System Solutions Brochure
 Download the latest industrial power system solutions brochure with information about complete SEL industrial solutions, detailed product and software selection guides, and more.
 Typical Industrial Plant
One-Line Diagram
Download typical industrial plant one-line diagram with SEL electric power equipment for industrial protective relaying, monitoring, metering, and control applications.
Example Network Communications Diagram
Download example network communications diagram with SEL electric power equipment for industrial protective relaying, monitoring, metering, control, computing and reporting applications.
 SEL University
Training Courses
Take advantage of power system fundamentals training or product specific courses from the experts at SEL University. SEL University courses cover:
- Power System Fundamentals
- Product Application
- Testing
- Integration and Automation
- Power System Management
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