General Electric 9L11ZGA021S Tranquell Surge Arrester Station is a protection device designed to limit transient overvoltages and divert surge energy in electrical power systems. It carries a voltage rating of 21 kVRMS, providing a defined threshold for surge protection in the system where this unit is specified. The model 9L11ZGA021S identifies this exact GE Tranquell surge arrester station, suitable for installations requiring a 21 kVRMS protection solution.
