Square D TeSys LRK Differential Thermal Overload Relay, 0.8–1.2A, Class 10A, Screw Clamp

Square D TeSys LRK Differential Thermal Overload Relay – Model LR2K0306

The Square D LR2K0306 is a TeSys LRK series differential thermal overload relay designed to work directly with TeSys K contactors. It provides Class 10A motor overload protection for small 3-phase motors in the 1/3 to 1/2HP range, with an adjustable thermal range of 0.8 to 1.2A.

Key Specifications

• Series: TeSys LRK
• Product Type: Differential Thermal Overload Relay
• Current Setting Range: 0.8 to 1.2A
• Trip Class: 10A
• Protection: Phase Unbalance Protection
• Connection Type: Screw Clamp Terminals
• Compatible With: TeSys K Contactors
• Manufacturer: Square D (Schneider Electric)
• Model: LR2K0306

Standards and Certifications

• NF C 63-650
• IEC 60947
• BS 4941
• VDE 0660

Features

• Differential thermal overload protection guards against sustained overload conditions
• Phase unbalance protection detects single-phasing and unbalanced load conditions
• Class 10A tripping class for standard motor protection requirements
• Direct mounting with TeSys K contactors for compact, integrated motor starter assemblies
• Adjustable current range (0.8–1.2A) for precise motor protection settings
• Compliant with international standards including IEC, BS, and VDE

Applications

Used to protect 3-phase motors from overload and phase unbalance faults in motor control centers, machine tool panels, and industrial automation systems. Designed to pair with TeSys K contactors for complete motor starter assemblies.