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Schneider Electric LT3SA00ED Thermistor Protection Unit

The Schneider Electric LT3SA00ED is a state-of-the-art thermistor protection unit designed for the safety and efficiency of motors. This unit offers unparalleled protection against overheating by monitoring motor temperatures through PTC probes. Its core features include an automatic reset function and compatibility with dual voltage supplies of 24 V DC or 48 V DC. The unit's versatility is further enhanced with one normally open (1 NO) and one normally closed (1 NC) contact, making it ideal for integration into a wide range of control circuits. With a fault indicator on the front panel for easy status monitoring, the LT3SA00ED ensures that you stay informed about your motor's health at all times.

Product Specifications and Features

The Schneider Electric LT3SA00ED is equipped with a host of technical specifications designed to meet the demanding needs of motor protection. With a control circuit voltage of 24 V DC or 48 V DC, this unit provides flexibility in various electrical systems. The automatic reset function simplifies maintenance and reduces downtime. The unit features a contact configuration of 1 NO + 1 NC, offering versatile integration into control circuits. Key specifications include a conventional free air thermal current (Ith) of 5 A, a rated insulation voltage (Ui) of 250 V AC, 50/60 Hz, and resistance thresholds for reset and tripping. The LT3SA00ED supports up to 6 probes and offers a short circuit detection resistance of < 20 Ω. Its connections are made through cage type connectors that support various cable sizes, ensuring seamless integration into your system.

Practical Applications and Benefits

The Schneider Electric LT3SA00ED is an essential component for ensuring the safety and reliability of motors in various industrial and commercial applications. Whether you're using motors in manufacturing, HVAC systems, or food processing facilities, this thermistor protection unit provides peace of mind. By monitoring motor temperatures and preventing overheating, the LT3SA00ED extends the lifespan of your motors, reducing maintenance costs and minimizing downtime. Its automatic reset function allows for quick recovery from faults, ensuring continuous operation. With a wide range of certifications, including IEC 60034-11 and VDE 0660, and compliance with IP20, this unit is designed to withstand harsh industrial environments. Ideal for both new installations and retrofits, the LT3SA00ED is a must-have for anyone looking to enhance the safety and efficiency of their motor-driven systems.