Contrel is an Italian company was founded in 1985 and is since almost 25 years active in the field of development and production of relays electronic of protection, systems for efficient usage of electricity, energy measurement.
Alarm annunciators and display signaling
Insulation monitoring for medical locations
Earth leakage relays
Current transformers for low voltage
versatile meters with the ability to measure 3 to 110 parameters, the opening and closing contacts for control and alarm of the high and low values, has a special place in the panel. Also it can be used for harmonic analysis.
this meters are used to measure as The analysis of energy exchange of high-voltage lines, medium voltage and low voltage applications . differences between EMA90H and EMA90 is harmonic analysis function in EMA90H.