Schneider Electric
Schneider Electric LRD4365 Overload Relay 80-104A
Thermal overload relay protects three-phase motors with 80 to 104 A adjustment range, 10 A trip class, 1 NO/1 NC auxiliary contacts and direct contactor mounting
- Protects motors from 80 A to 104 A
- Trip Class 10A ensures fast overload response
- 1 NO + 1 NC auxiliary contacts for control circuits
- Direct contactor mounting simplifies panel assembly
- Rated up to 1000 V AC for industrial power systems
Application Scope
The Schneider Electric LRD4365 is a thermal overload relay rated for three-phase motor circuits between 80 A and 104 A. It mounts directly to compatible TeSys Deca contactors and provides 1NO/1NC auxiliary contacts for control signalling. The device suits industrial panels where adjustable thermal protection up to 1000 V AC is required.
Upgrade Context
This relay replaces fixed-setting or lower-range overload units when motor full-load current falls within the 80 A to 104 A window. The jump is worthwhile when an existing starter cannot be adjusted to the motor’s actual current or when Trip Class 10A timing matches the application’s acceleration profile better than a slower class.
Interface Limits
Screw-clamp terminals accept solid or stranded conductors sized for the 80 A to 104 A range. The direct-mount design requires a matching TeSys Deca contactor frame; it cannot be DIN-rail mounted independently. Maximum system voltage is 1000 V AC, and manual reset means the panel must be accessible after a trip.
Highlights
- Protects motors from 80 A to 104 A
- Trip Class 10A ensures fast overload response
- 1 NO + 1 NC auxiliary contacts for control circuits
- Direct contactor mounting simplifies panel assembly
- Rated up to 1000 V AC for industrial power systems
Specifications
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Questions about this item
What contactor series does the LRD4365 mount directly to?
The relay mounts directly to the TeSys Deca contactor series using its direct-to-contactor mounting style.
How are the power connections terminated on this overload relay?
Power connections use screw clamp terminals; ensure each conductor is fully inserted and the screws are tightened to the specified torque to avoid loose connections.
When should the thermal overload element be replaced?
Replace the thermal element after a trip event or if inspection shows discoloration, deformation, or loss of calibration at the 80 to 104 A setting range.
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