Thermistor protection units, TeSys LT3, 250VAC 50/60Hz, 24 to 48VDC, 1NO+1NC, manual reset

TeSys LT3 thermistor protection unit for use with PTC probes, with manual reset and fault indicator on front, dual voltage supply 24 or 48V DC. To be used with a combination of PTC probes impedance lower than 1500 Ohm at 25°C, the trip impedance zone is 2700-3100 Ohm, the manual reset is possible only if impedance has decreased enough to be below 1500-1650 Ohm. It provides 2 auxiliary contacts 1NO+1NC for fault signaling, 1 pushbutton on front face for a local manual reset, and 1 logic input for connection of a remote reset button. DIN rail mounting, connections by cage terminals. PTC thermistor probes DA1TT, DA1TS available (to be ordered separately). Multi standards certified (IEC, UL, CSA), Green Premium compliant (RoHS/REACh).