SQUARE D
SQUARE D LRD14L Thermal Overload Relay 7-10A 690V AC Trip Class 20
Protects motors from 7 to 10 amps at 690 volts with adjustable thermal trips in class 20, mounts directly to contactors and resets automatically or manually
- Adjustable 7–10 A range protects motor circuits
- Trip Class 20 tolerates brief start-up surges
- 690 V AC rating suits industrial supply voltages
- 1 NO / 1 NC auxiliary contacts signal trip status
- Direct contactor mounting with screw-clamp terminals
SQUARE D LRD14L Thermal Overload Relay
The SQUARE D LRD14L is a thermal overload relay designed for motor protection in industrial control panels. It suits electricians and maintenance engineers who need reliable overload detection for three-phase circuits up to 690V AC.
Direct contactor mounting with screw clamp terminals
Mounting is direct onto compatible TeSys Deca contactors using screw clamp terminals for secure wiring. The dual auto and manual reset options give flexibility after a trip, but incorrect current dial setting between 7 A and 10 A is the most common cause of nuisance tripping or missed protection.
Ideal for IEC-style motor starters needing Trip
This relay fits builders using IEC-style starters that require Trip Class 20 thermal protection and 1NO/1NC auxiliary contacts. It is not suitable for applications needing electronic overload features, different trip classes, or NEMA-sized contactor mounting.
Highlights
- Adjustable 7–10 A range protects motor circuits
- Trip Class 20 tolerates brief start-up surges
- 690 V AC rating suits industrial supply voltages
- 1 NO / 1 NC auxiliary contacts signal trip status
- Direct contactor mounting with screw-clamp terminals
Specifications
| Brand | SCHNEIDER ELECTRIC |
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Questions about this item
How can I confirm the LRD14L is protecting the circuit correctly after wiring it to the contactor?
After installation, apply load current within the 7 A to 10 A range and verify the relay trips at the expected overload point for Trip Class 20; the 1NO/1NC auxiliary contacts will change state to signal a trip condition.
What components are included with the LRD14L and what must be sourced separately?
The relay unit includes screw-clamp terminals for direct mounting to a compatible TeSys Deca contactor; the contactor itself and control-circuit wiring are not included and must be purchased separately.
Which trip class and current range suit a motor needing thermal protection between 7 and 10 amperes at 690 V AC?
This model provides Trip Class 20 with an adjustable 7 A to 10 A setting range at 690 V AC, matching motors that require that specific thermal overload profile.
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