Microswitches equipped Thermometer type MTVT 84

Description and general specifications.
This instrument is designed to measure and control the temperature in oil filled distribution transformers and
is made for outdoor mounting in as well tropical or arctic climates (ambient temperature range -40°C /
+70°C). All components are made of corrosion resistant or surface treated materials.
This thermometer is fitted with 1 or 2 change-over (SPDT) microswitches working both normally open and
normally closed (three terminals each microswitch) and is supplied with a junction board with 3 or 6 terminals
+ earth. Max. cable section = 2,5mm 2.
 

Temperature sensing system : expansion type (liquid filled system), compensated for ambient temperature changing by means of a bimetallic spring.
Casing : aluminium alloy with powder painting high protection degree. On request case can be provided with an air breather device for ventilation.
Mechanical protection degree : IP 65.
Measuring range : -20 / + 1 20°C.
Switches making and breaking capacity (non inductive) :
5A 250V AC
250mA 250V DC
500mA 1 25V DC.
Insulation test : 2000V 50Hz between terminals and earth for a 60 seconds time.
Measuring tolerance : 1 ,5% of full scale value.
Commutation tolerance : 2% of full scale value.