TELEMECANIQUE LB1 LC03M13 018058

Telemecanique LB1 LC03M13 Thermal Overload Relay

Description

The Telemecanique LB1 LC03M13 is a robust 3-pole thermal overload relay designed for reliable motor protection. Part of the Integral series, this unit offers a selectable current setting range from 6.3A to 10A, ensuring precise protection against overcurrents and phase loss. It is engineered for direct mounting onto Telemecanique LC03 contactors, creating a compact and efficient motor starter solution. This is a dependable component for various industrial applications.

Specifications

• Manufacturer: Telemecanique (Schneider Electric)
• Type: LB1 LC03M13
• Part Number: 018058
• Product Type: Thermal Overload Relay
• Thermal Setting Range: 6.3 to 10 A
• Number of Poles: 3
• Rated Insulation Voltage (Ui): 690V AC
• Mounting: Direct to LC03 Contactor

Label Info

• Irth: 6.3-10
• LB1 LC03M13
• Ui 690V a.c. max

Application

This thermal overload relay is ideal for protecting AC motors in applications such as pumps, fans, conveyors, and other industrial machinery where reliable overload and phase failure protection is critical.

Country of Origin

This product was manufactured in France.

CO2 Impact

By purchasing this reused component, you are helping to avoid the emission of approximately 6.0 kg of CO2. This saving is equivalent to the emissions from driving a car for 30 kilometers.

Availability

This is an obsolete item but is available from our stock. Order now from spareparts2day for expert support and fast delivery.

FAQ

Which contactor series is the LB1 LC03M13 compatible with?

This thermal overload relay is specifically designed for direct mounting on the Telemecanique Integral LC03 series contactors.

Does this relay have an automatic or manual reset function?

The LB1 LC03M13 features a selectable manual or automatic reset function, which can be chosen via a blue selector on the device to suit the application’s needs.

Is this relay sensitive to phase failure?

Yes, this is a 3-pole differential thermal overload relay, which means it is sensitive to phase loss and will trip to protect the motor in the event of a phase failure.

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Last Update: March 13, 2026