Overview
The Schneider Electric LRD4365 is part of the TeSys Deca thermal overload relay family, engineered for use with TeSys D contactors to create compact, efficient motor starters. This Class 10A thermal overload relay has a current range of 80 to 104 A and delivers reliable motor protection in industrial automation and control applications.
Key Features
- Differential thermal overload relay detects overcurrents in motor lines; when an overcurrent is detected, the relay works with the contactor to disconnect power and minimize motor winding damage
- Manual or auto reset function with trip indicator flag and 1 NO + 1 NC auxiliary contact
- Screw clamp terminal connection for secure, straightforward wiring
- Phase unbalance protection detects single-phase conditions
- Multi-standard certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine); RoHS/REACH compliant
Technical Specifications
Covers adjustable thermal overload settings from 80 to 104 amperes with Class 10A trip calibration. Suitable for motor protection up to 150 A systems and operates reliably in industrial temperature ranges.
Typical Applications
- Industrial motor protection and overload control
- Compact motor starter assemblies with TeSys D contactors
- Panel-mounted motor control systems
- Three-phase motor protection in manufacturing and process industries
- Equipment protection against thermal overload and phase loss
Compatibility & Replacements
Compatible With
- TeSys D contactors rated 115 through 150 amperes
- Spring terminals, ring terminals, or EverLink terminals (in addition to screw clamp)
- TeSys Deca motor starter systems
- IEC 60947-4-1 compliant motor control circuits
- 600V AC and 1000V rated control systems
Replaces / Drop-In Replacement For
- Verify compatibility with your system integrator before ordering to ensure proper mounting and terminal configuration with your specific TeSys D contactor model.
Works With
- TeSys D contactors (LC1D series)
- Square D motor control components
- IEC thermal overload protection schemes
- Manual or automatic motor starter circuits




