Schneider Electric LR2K0306 Thermal Overload Relay

The Schneider Electric Telemecanique LR2K0306 thermal overload relay is a three-pole differential unit with an adjustable current range of 0.8–1.2 A, part of the TeSys K (LR2K) series, designed to protect AC and DC motors from overload and phase-failure in compact TeSys K motor control assemblies found in panelboards, conveyors, pumps, and other automation equipment. It is rated up to 690 VAC (600 VAC CSA) and includes 1 normally open plus 1 normally closed auxiliary contact, enabling interlock or signaling circuits, with a Class 10A thermal overload protection rating. Mounting options cover direct mounting to a TeSys K contactor, panel mounting, or DIN-rail mounting when using the appropriate accessories, and the device uses screw-clamp terminals for secure wiring; it supports compatibility with TeSys K LC1K, LP1K, LP4K, and LC7K contactors. As an OEM direct replacement, LR2K0306 is commonly used in manufacturing facilities, machine tools, HVAC systems, material handling setups, and packaging lines to provide reliable motor protection in compact starter assemblies.