Code: 1CN0023
Type inputs: 3-6-9 Pt100
Outputs: 10 relays (3 alarm, 3 trip, 3 fan, 1 fault)
Plus: for trafo with more than 3 windings





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Datasheet NT539 ITA-ENG.pdf


Electronic microcontroller based unit, specifically designed to control transformers with more than three windings, such as those used in the conversion DC/AC plants/systems; the NT539 can also be used to control the temperature of distribution MV/LV systems with three phases transformers.

It is equipped with 9 Pt100 inputs and the following relays: 3 for the ALARM, 3 for the TRIP and 3 for the FAN cooling system.

Furthermore, there’s another FAULT relay in common with the whole system, to signal a sensor fault or any other problem inside of the unit.

All our units can also be supplied with a special coating on the electronic cards, resistant to difficult weather conditions, particularly characterized by high temperature and humidity (which are in tropical climates).

UNIVERSAL POWER SUPPLY: with input from 24 to 240 Vac-dc