TELEMECANIQUE LR2-D3363

Telemecanique LR2 D3363 Thermal Overload Relay

Description

The Telemecanique LR2 D3363 is a differential thermal overload relay designed for the protection of three-phase AC motors. Part of the renowned TeSys D range, it provides reliable safeguarding against overloads, phase failure, and prolonged starting times. With its adjustable current setting and Class 10 trip characteristic, it offers precise and dependable motor protection. This unit is designed for direct mounting onto LC1-D and LP1-D contactors, ensuring a compact and efficient motor starter assembly.

Specifications

• Manufacturer: Telemecanique (now Schneider Electric)
• Model: LR2 D3363
• Product Type: Thermal Overload Relay
• Current Setting Range: 48 to 65 A
• Rated Insulation Voltage (Ui): 750 V
• Trip Class: Class 10 conforming to IEC 60947-4-1
• Auxiliary Contacts: 1 NO + 1 NC
• Mounting: Direct mounting on contactor
• Compatibility: LC1-D / LP1-D series contactors

Label Info

• Model: LR2 D3363
• Ui: 750 V
• Ith: 5 A
• For use with: Contactor LC1 D / LP1 D
• CLASS 10

Application

This overload relay is ideal for standard motor protection applications in various industries, including material handling, HVAC, pumping, and general manufacturing. It ensures the longevity and operational safety of electric motors by preventing damage from thermal overloads.

Country of Origin

Made in France.

CO2 Impact

By purchasing this pre-owned component, you are helping to avoid approximately 20 kg of CO2 emissions associated with the production of a new one. This choice supports a more sustainable industrial environment.

Availability

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

FAQ

What is the adjustable current range for the LR2 D3363?

The LR2 D3363 has a thermal setting range from 48 Amperes to 65 Amperes, which is adjustable via the dial on the front of the unit.

Which series of contactors is this relay compatible with?

This thermal overload relay is designed for direct mounting on Telemecanique/Schneider Electric LC1-D and LP1-D series contactors.

What is the difference between Class 10 and Class 20 tripping on a thermal overload relay?

A Class 10 relay, like this LR2 D3363, will trip within 10 seconds under locked rotor conditions (at 6 times the full load current). A Class 20 relay would trip within 20 seconds under the same conditions and is used for motors with a higher starting inertia.

Last Update: Friday, March 13, 2026

spareparts2day is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners.