TeSys LT3 thermistor protection unit for use with PTC probes, with automatic reset and fault indicator on front, dual voltage supply 115 or 230V AC 50/60Hz. 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 automatic reset impedance zone is 1500-1650 Ohm. It provides 2 auxiliary contacts 1NO+1NC for fault signaling. 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). PTC thermistor probes DA1TT, DA1TS available (to be ordered separately).
Specifications :
Control circuit voltage limits ;0.85...1.1 Uc
Contacts type and composition: 1 NC + 1 NO dual voltage
[Ith] conventional free air thermal current :5 A for output control relay
[Ui] rated insulation voltage: Output control relay: 500 V AC
[Ue] rated operational voltage :250 V AC 50/60 Hz for output control relay
Signalling function: Fault indication Voltage indication
Control type: Automatic reset
Probe interchangeability :Label mark A conforming to IEC 60034-11
Hold-in power consumption in W: 1 W
Hold-in power consumption in VA: 2.5 VA
RM 1,870.13
Lead time of 60 working days required.
Item will be ready to dispatch within the lead time specified.