SIRIUS 3RN2 Thermistor Motor Protection Relay
Brand :
SIEMENS
Caution
Product Description
SIRIUS 3RN2 thermistor motor protection relays are thermal protection devices that are suitable, in combination with type A PTC thermistors, for monitoring temperatures of electrical drives, transformer windings, oils, bearings, air, etc.
The most frequent application is monitoring of three-phase motors in which the motormanufacturer has fitted a PTC sensor into every winding overhang and in which these PTCsensors are connected in series.
Device overview
