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NT511AD controller

Reference AR001034

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TECSYSTEM data sheet | NT511AD controller

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TECSYSTEM user manual | NT511AD controller

Product features NT511AD controller


The NT511 is a combined unit to control the temperature of dry transformers and the power of the fan cooling system.

In AD version, it is simultaneously equipped with Analog 4-20mA and Digital RS485 Modbus RTU outputs.

It is recommended with the use of tangential fans, thanks to the presence of 6 outputs 230 Vac 1.5 A max. (each).

Each fan is protected by a fuse and in the event of failure, the unit provides a FAULT signal.

The metal structure is designed to be installed on the transformer box.

4 Pt100 inputs allow the reading of the temperature of the 3 windings and in the case of the heart or the atmosphere.

The unit is fitted with dry contacts to signal FAULT, ALARM and TRIP.

For fan control, there are 6 active outputs that supply power directly to the fans.

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

Autres versions 
NT511 BASIC unit without digital or analog outputs ( COD.1CN0010 ) 
RS485 NT511 unit with digital RS485 Modbus RTU output ( code 1CN0011 )

Electrical connections

NT511 AD TECSYSTEM connection

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