The SELCO category at Roshanex covers generator control and protection equipment for power plants and industrial sites. It includes reverse power relays, overcurrent and dual overcurrent relays, frequency relays and synchroscopes. In addition, you will find SIGMA control modules, a SIGMA user interface, a power reference unit and a motorized potentiometer.

Electrical engineers and panel builders use these devices when running generators in parallel or protecting them from faults. For example, a synchroscope shows when two supplies are in step, while a reverse power relay trips a generator that starts motoring. The SIGMA modules also bring control functions together for generator panels.

Send us your part numbers, and our team will confirm the right SELCO model for your panel.