The Schneider Electric LRD21KN is a TeSys Motor Thermal Overload Relay designed for motor protection applications. This relay is part of the LRD series, a robust line of motor control components from Schneider Electric. It provides reliable overload and phase-loss protection for three-phase motors, ensuring operational continuity and preventing damage.

Technical details

• Series: TeSys LRD
• Type: Motor Thermal Overload Relay
• Current Rating: 12...18 A
• Trip Class: Class 10A
• Phase Loss Sensitivity: Yes
• Reset Method: Manual or Automatic
• Mounting Type: Direct mounting or separate mounting with accessory kit
• Contact Configuration: 1 Normally Open (NO) + 1 Normally Closed (NC) auxiliary contacts

Applications & compatibility

This LRD21KN thermal overload relay is commonly integrated into motor starter assemblies for protecting electric motors in various industrial settings. It is suitable for use with IEC and NEMA rated motor starters, providing essential protection for applications such as conveyor systems, pumps, fans, and machine tools.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the LRD21KN or contact our technical team for cross-reference assistance with compatible TeSys components.