SCHNEIDER ELECTRIC LRD10 034679

Schneider Electric Thermal Overload Relay 4-6A LRD10

Description

The Schneider Electric LRD10 is a differential thermal overload relay from the trusted TeSys D range. It provides essential protection for motors by safeguarding against thermal overloads, phase imbalance, and phase failure. With its adjustable 4-6A thermal setting range, it offers precise and reliable operation for a variety of industrial applications. This component is designed for direct mounting onto TeSys D contactors (LC1D09 to LC1D38) for a compact and efficient motor starter assembly.

Specifications

• Manufacturer: Schneider Electric
• Product Range: TeSys D
• Model: LRD10
• Commercial Reference: 034679
• Product Type: Differential Thermal Overload Relay
• Thermal Setting Range: 4-6 A
• Trip Class: Class 10A conforming to IEC 60947-4-1
• Rated Insulation Voltage [Ui]: 690 V AC
• Mounting Support: Direct on contactor or DIN rail (with adapter)

Label Info

• Brand: TeSys
• Model: LRD10
• Part Number: 034679
• Range: 4-6A
• EAN: 3389110346794

Application

The LRD10 is primarily used in industrial automation and control systems for motor protection in applications such as pumps, fans, conveyors, and machine tools. Its differential mechanism makes it suitable for protecting three-phase motors where phase loss could cause significant damage.

Country of Origin

Made in France.

CO2 Impact

By purchasing this reused Schneider Electric LRD10, you are helping to avoid the emission of 4.96 kg of CO2. This saving is equivalent to the CO2 absorbed by a mature tree over several months.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the function of a ‘Class 10A’ trip class?

Class 10A means the relay will trip within 10 seconds when subjected to a current 7.2 times the set thermal value. This class is suitable for standard motor starting conditions and protects against locked rotor situations without causing nuisance tripping.

How is the LRD10 mounted?

It is designed for direct mounting onto the load side terminals of Schneider Electric TeSys D contactors (models LC1D09 through LC1D38). It can also be mounted separately on a DIN rail using a LAD7B106 terminal block adapter.

Does this relay protect against single-phasing?

Yes, the LRD10 is a differential relay, which means it has built-in phase failure sensitivity. It will trip if one of the three phases is lost, protecting the motor from the damaging effects of running on two phases.

Last Update: March 13, 2026

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