SEL-351A

The SEL-351A is an industry-standard feeder protection relay offering high-speed overcurrent protection and recloser control for distribution systems. It provides directional elements, sensitive ground fault detection, cold-load pickup logic, and fault-locating capabilities. The relay is optimized for recloser applications and includes fast autoreclosing, synch-check, and customizable automation logic. With support for SCADA protocols (IEC 61850, DNP3, Modbus), SEL-351A integrates seamlessly into utility distribution management systems. Known for its durability and longevity, SEL-351A is widely used by utilities around the world for dependable feeder protection.

Key Features

• Phase and ground overcurrent protection

• Directional elements

• Recloser control functions

• Fault location and event records

• Robust and proven design

• Wide SCADA protocol support

Applications

• Distribution feeder protection

• Recloser control

• Industrial distribution systems

• Backup protection in substations

Keywords

SEL-351A, feeder protection relay, recloser relay, SEL overcurrent relay