| Item Description | MSF220VL, PTC-relay for DRY transformers, AC/DC24-230V / PTC-resistor-relay (thermistor relay) for the protection of transformers with integrated monitoring of temperature of core for PTC-thermistors 60-180 °C, acc. To DIN 44081/44082 4 PTC-circuits (operation fan, alarm trip winding and trip core) intelligent control of fan test-button relays 4 change-over contacts relay for trip in operating current mode, NO tripping signal when switching on supply display of operating status with leds housing width 70 MM, mounting height 55 MM snap-on mounting on DIN-rail or with screws (option) supply voltage AC/DC 24-240 V |