SQUARE D
SQUARE D LR3D10L Overload Relay 4-6 A Trip Class 20 690 V AC
Protects three-phase motors from 4 to 6 A with Class 20 thermal trip at 690 V AC
- Thermal protection for 4–6 A motor circuits
- Trip Class 20 prevents nuisance trips on heavy starts
- 690 V AC rating suits industrial supply voltages
- 1NO/1NC auxiliary contacts give instant status feedback
- Direct contactor mounting with screw-clamp terminals speeds installation
SQUARE D LR3D10L Overload Relay 4-6 A Trip Class 20
The SQUARE D LR3D10L is a thermal overload relay designed for motor protection in industrial control circuits. It offers an adjustable current setting range from 4 A to 6 A with Trip Class 20 timing. The unit mounts directly to compatible TeSys Deca contactors and provides 1NO and 1NC auxiliary contacts for status signalling.
Check contactor compatibility
Verify that the existing contactor belongs to the TeSys Deca series to allow direct mounting without extra hardware. Confirm the control circuit operates at or below 690 V AC, the relay’s maximum voltage rating. Ensure the wiring scheme accommodates screw clamp terminals and that the motor’s full-load current falls within the 4 A to 6 A adjustment window.
Suits panels using TeSys Deca contactors needing
This relay fits maintenance teams and panel builders who require thermal overload protection with automatic or manual reset on TeSys Deca starters. It is not suitable for applications demanding electronic overload functions, different trip classes, or current ranges outside the 4 A to 6 A band. Buyers needing DIN-rail mounting or other contactor families should consider alternative models.
Highlights
- Thermal protection for 4–6 A motor circuits
- Trip Class 20 prevents nuisance trips on heavy starts
- 690 V AC rating suits industrial supply voltages
- 1NO/1NC auxiliary contacts give instant status feedback
- Direct contactor mounting with screw-clamp terminals speeds installation
Specifications
| Brand | SCHNEIDER ELECTRIC |
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Questions about this item
Does the relay ship with mounting hardware or must I buy the TeSys Deca contactor separately?
The relay mounts directly to a TeSys Deca contactor; the contactor is not included.
Should I select this 4-6 A version or a different range for my motor?
Choose this version when the motor full-load current falls between 4 A and 6 A.
What does the Trip Class 20 rating mean for motor protection?
Trip Class 20 allows the motor to carry overload for up to 20 seconds before the relay trips.
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