Schneider LR2K0307 TeSys K Overload Relay 1.2-1.8A Class 10A Direct Mount

The Schneider Electric LR2K0307 is a TeSys K differential thermal overload relay designed for motor protection, with an adjustable thermal overload range of 1.2 to 1.8 A and Class 10A tripping characteristic per IEC 60947-4-1. It is compatible with LC1K, LP1K, LP4K, and LC7K contactors and mounts directly below the contactor for compact motor starter assemblies on AC and DC networks.

Technical specifications:

• Commercial reference: LR2K0307
• Manufacturer: Schneider Electric
• EAN:
• Series / range: TeSys K (TeSys LRK)
• Product type: Differential thermal overload relay
• Relay application: Motor protection
• Thermal overload adjustment: 1.2-1.8 A
• Tripping class: Class 10A per IEC 60947-4-1
• Network type: AC / DC
• Network frequency: up to 400 Hz
• Compatible contactors: LC1K, LP1K, LP4K, LC7K
• Rated insulation voltage [Ui]: 690 V (IEC 60947 / BS 4941), 750 V (VDE 0110 group C), 600 V (CSA C22.2 No 14)
• Rated impulse withstand voltage [Uimp]: 6 kV
• Auxiliary contact: 1 NO + 1 NC
• Thermal current [Ith]: 6 A (signal circuit)
• Dissipation power per pole: 2 W
• Mounting: Below contactor; panel or DIN rail mounting with accessories
• Connection type: Screw terminal blocks, 1.5-4 mm² (solid), 0.75-4 mm² (flexible)
• Tightening torque: 1.3 N.m
• Dimensions (W x H x D): 45 x 58 x 65 mm
• Weight: 0.145 kg
• IP protection rating: IP2x per IEC 60529
• Operating temperature: -20 to 55°C (without change of characteristics) per IEC 60947
• Storage temperature: -40 to 70°C
• Operating altitude: up to 2000 m without change of characteristics
• Standards: IEC 60947, NF C 63-650, VDE 0660, BS 4941
• Certifications: UL, CSA, UKCA

Features and benefits:

• Phase loss sensitivity for protection against single-phasing per IEC 60947-4-1
• Yellow trip indicator lamp for rapid local fault identification
• Red test button allows trip function verification without load disconnection
• Blue stop button with manual reset; selector switch for manual or automatic reset mode
• Wide conductor compatibility - accepts solid and flexible cables from 0.75 to 4 mm²
• Flame resistance rated V1 per UL 94 and fire resistance to 850°C per IEC 60695-2-1

Applications:

• Motor protection in industrial motor control centers and control panels
• Direct mounting on TeSys K contactor assemblies for compact starters
• Pump, fan, and conveyor motor circuits requiring overload and phase-loss protection
• HVAC and building automation motor control applications
• Light industrial and commercial motor starter combinations

Compliant with IEC 60947, NF C 63-650, VDE 0660, and BS 4941. Part of the Schneider Electric TeSys K range.

Also known as: Schneider LR2K0307, Schneider Electric LR2K0307, TeSys K thermal relay 1.8A, motor overload relay LR2K0307.