TELEMECANIQUE PROTECTION RELAY LT3SA00ED

The LT3SA00ED is a thermistor protection unit from Schneider Electric. 

 It’s a PTC probe relay with automatic reset and a fault indicator. The LT3SA00ED is used with PTC probes that have an impedance lower than 1500 Ohm at 25°C. The trip impedance zone is 2700-3100 Ohm. 

Here are some more details about the LT3SA00ED: 

• Product range: LT3

• TELEMECANIQUE

• Device short name: LT3SA

• Control circuit voltage: 24…48 V DC

• Reset: Automatic

• Voltage: 24 Vac/ 48 Vac

• Model name/number: LT3SA00ED

• Compliance: Compliant

The LT3SA00ED protects against faults caused by premature aging. It also protects motors with PTC probes, resistors, bearings, and capacitors. It’s good in severe environments with frequent starts.