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Transparent Schneider Electric LRD22 overload relay with adjustable dial

Schneider Electric

Schneider Electric LRD22 Overload Relay 16-24 A

SKU CH-8R18-DVQTC

Protects motors by disconnecting power on overcurrent, adjustable from 16 to 24 amperes, Class 10A calibrated, multi-standard certified

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • Adjustable 16–24 A trip protects motors from overload damage
  • Class 10A calibration ensures reliable thermal response under fault conditions
  • Compatible with 9–38 A TeSys D contactors for flexible starter builds
  • Multi-standard IEC, UL, CSA, CCC, EAC, ATEX, Marine certification simplifies global compliance
  • Differential thermal sensing detects phase imbalance to prevent winding failure

Schneider Electric LRD22 Overload Relay

This Schneider Electric LRD22 overload relay protects motors by detecting overcurrents and disconnecting power through a paired contactor. It offers an adjustable trip range of 16 to 24 amperes calibrated to Class 10A. The unit carries multi-standard certifications including IEC, UL, CSA, CCC, EAC, ATEX and Marine. It is designed for industrial motor starter assemblies.

For motor circuits needing 16 to 24 A protection

This relay suits installations where a TeSys D contactor rated from 9 to 38 amperes is used and the motor full-load current falls within the 16 to 24 ampere window. It is not for circuits requiring a lower or higher trip range, nor for applications that do not use a compatible TeSys D contactor. Buyers needing different current settings should select another LRD model.

Adjustable 16 to 24 A trip range

The relay comfortably handles motor protection duties within its calibrated 16 to 24 ampere range with Class 10A response. It runs out when the application demands a trip point below 16 amperes or above 24 amperes, or when the contactor exceeds the 38 ampere compatibility limit. The transparent housing allows visual inspection of the mechanism.

Highlights

  • Adjustable 16–24 A trip protects motors from overload damage
  • Class 10A calibration ensures reliable thermal response under fault conditions
  • Compatible with 9–38 A TeSys D contactors for flexible starter builds
  • Multi-standard IEC, UL, CSA, CCC, EAC, ATEX, Marine certification simplifies global compliance
  • Differential thermal sensing detects phase imbalance to prevent winding failure

Specifications

BrandSCHNEIDER ELECTRIC
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

Which TeSys D contactor ratings from 9 to 38 A can I pair with the LRD22 overload relay?

The LRD22 is designed for TeSys D contactors rated 9 A through 38 A, so any contactor in that range can be used.

Will the LRD22 protect a motor on a legacy starter that uses a Class 10A thermal curve?

Yes, the relay is calibrated to Class 10A, matching the thermal curve on older starters that specify the same class.

How do I verify the relay trips at the 16–24 A setting after wiring it?

Apply a test current within the 16–24 A range; the 1NC/1NO contacts should change state, confirming correct operation.

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