The SEL 3505 is the newest, and low-end version of the RTAC. It supports Modbus, DNP3, IEC 61950, and GOOSE…

The SEL 3505 is the newest, and low-end version of the RTAC. It supports Modbus, DNP3, IEC 61950, and GOOSE…
The SEL 3555 on the high end of the RTAC family. It’s an RTU supporting Modbus, DNP3, IEC 61950, and…
Most common recloser used for transmission-connected PV solar sites. Everything it does, it does well. It’s fast responding protection equipment…
This is the most common recloser used for distribution-connected PV solar sites. Everything it does, it does well. It’s fast…
The SEL-751 A is a device for feeder protection for industrial utility applications. It uses Modbus, DNP, IEC, as well…
Similar to 501, the SEL 551 also provides a recloser relay, mostly for utility applications. It uses Modbus and IEC…
The SEL-501 is an overcurrent protection relay, often referred to as a universal overcurrent relay. This device can protect two…
SEL-701 is a motor protection relay. We often find the SEL-701 in more industrial applications, and some utility applications at…
The 700G is a generator protection relay mostly used in emergency power supply system applications. This device supports Modbus and…
Real time automation controller, also known as RTAC, is popular in substation applications and industrial control applications. It provides similar…