ORION Temperature Protection Relay (TR42CM)

ORION  Temperature Control & Protection Relay ( TR42 )

The TR42 has been created as an accessory of main importance for resin or air insulated three-phase MT transformers, to control and monitor temperatures on the insulating coil, on the winding and to manage the intervention of cooling fans. The temperature is detected by 3 or 4 thermal detectors PT 100, three of them located in the transformer coils, the fourth on the core

FEATURES 
◐  Display of the actual temperature of the 4 PT sensors.
◐  Display & storage of the highest temperature of each PT sensor.
◐  3 programmable output contacts from 0° to 220°C level 1, level 2 and FAN control.
◐  Automatic and “Always ON” fan mode.
◐  Alarm of device failure or PT 100 disconnection or short circuit.
◐  Automatic fan start every week (bearing protections). 
◐  Insulated RS-485 communication port.
◐  Insulated 4-20mA output (Optional).

OPTIONAL FEATURES
◐  4-20mA Analog Output
◐ Acoustic signalization on L1 level

ORDER CODE 

 
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