Schneider LR2K0303 TeSys K Overload Relay 0.23-0.36A Class 10A Direct Mount

The Schneider Electric LR2K0303 is a TeSys K differential thermal overload relay for motor protection, with a thermal overload setting of 0.23 to 0.36 A and Class 10A tripping characteristic per IEC 60947-4-1. Compatible with LC1K, LC7K, LP1K, and LP4K contactors, it mounts directly below the contactor for compact panel assembly.

Technical specifications:

• Commercial reference: LR2K0303
• Manufacturer: Schneider Electric
• EAN:
• Series / range: TeSys K
• Product type: Differential thermal overload relay
• Thermal overload setting: 0.23...0.36 A
• Tripping class: Class 10A (IEC 60947-4-1)
• Network type: AC / DC
• Network frequency: up to 400 Hz
• Rated insulation voltage: 690 V (IEC 60947), 600 V (CSA)
• Rated impulse withstand voltage: 6 kV
• Auxiliary contacts: 1 NO + 1 NC
• Phase loss sensitivity: Yes (IEC 60947-4-1)
• Dissipation power per pole: 2 W
• Connection: 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 rating: IP2x (IEC 60529)
• Operating temperature: -20...55°C without characteristic change (IEC 60947)
• Storage temperature: -40...70°C
• Operating altitude: up to 2000 m without characteristic change
• Certifications: UL, CSA, UKCA
• Standards: IEC 60947, VDE 0660, BS 4941, NF C 63-650

Features and benefits:

• Direct mounting below TeSys K contactors eliminates additional wiring for compact panel assemblies
• Phase loss sensitivity per IEC 60947-4-1 prevents motor damage from single-phase running conditions
• Yellow trip indicator provides clear local fault signaling at the device
• Red test button verifies trip function; blue button enables stop and manual reset
• Selector switch allows choice between manual or automatic reset mode

Applications:

• Motor overload protection in industrial automation control panels
• Small motor protection paired with TeSys K contactors in machine tool circuits
• Pump and HVAC motor protection in building services installations
• Motor control assemblies on production lines and conveyor systems

Compliant with IEC 60947-4-1, VDE 0660, BS 4941, and NF C 63-650. Part of the Schneider Electric TeSys K range.

Also known as: Schneider LR2K0303, Schneider Electric LR2K0303, TeSys K overload relay, thermal overload relay 0.23-0.36A.