Telemecanique LRD05 Thermal Overload Relay

Description

The Telemecanique LRD05 is a TeSys LRD thermal overload relay designed for the protection of motors. It offers reliable protection against motor overload, phase imbalance, and extended starting conditions. This unit has an adjustable current setting range of 0.63 to 1 Ampere and is classified as Trip Class 10A. It is designed for direct mounting onto TeSys D contactors, providing a compact and efficient motor starter solution.

Specifications

• Manufacturer: Telemecanique (Schneider Electric)
• Model: LRD05
• Part Number: 034675
• Product Range: TeSys LRD
• Thermal Setting Range: 0.63 - 1 A
• Trip Class: Class 10A according to IEC 60947-4-1
• Rated Insulation Voltage (Ui): 690 V AC
• Rated Impulse Withstand Voltage (Uimp): 6 kV
• Auxiliary Contacts: 1 NO + 1 NC
• Mounting Support: Direct on contactor (LC1D09 to LC1D38) or stand-alone with terminal block

Application

This thermal overload relay is ideal for standard motor protection applications in industrial environments, including conveyor systems, pumps, fans, and small machinery where reliable overload protection is critical.

Country of Origin

Made in France.

CO2 Impact

By purchasing this reused TeSys LRD05 relay, you are contributing to a circular economy and avoiding approximately 6.0 kg of CO2 emissions associated with the production of a new unit. This saving is comparable to the emissions from driving a standard car for 30 kilometers.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

What is the difference between trip class 10A and trip class 20?

Trip class 10A means the relay will trip within 10 seconds at 7.2 times the set current, suitable for standard motor applications. Trip class 20 allows for a longer start time (up to 20 seconds), which is necessary for motors with heavy starting loads like high-inertia fans or pumps.

The LRD05 is designed for direct mounting on TeSys D contactors (e.g., LC1D09). However, it can also be mounted separately on a DIN rail using a specific terminal block adapter, such as the Schneider Electric LA7D0364.

The blue 'RESET' button allows selection between two modes. In 'Manual' mode, an operator must physically press the button to reset the relay after a trip. In 'Auto' mode, the relay resets automatically once the internal components have cooled down, which is useful for inaccessible installations.

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Last Update: Friday, March 13, 2026