Description
The TeSys LRD thermal overload relay is designed for the reliable protection of 3-phase motors against overloads, phase failure, and unbalanced load conditions. With a thermal current setting range of 2.5 to 4A and a Class 10A tripping curve, this device is ideal for motors rated 1.1 to 1.5kW at 400V.
This differential relay offers enhanced functionality, including:
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Manual/automatic reset selector
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Test button for tripping simulation
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Stop button and flag indicator
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1NO + 1NC auxiliary contacts for fault signalling
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Thermal adjustment dial secured with a transparent, sealable cover
It connects directly to LC1D09 to LC1D38 contactors and supports both DIN rail and screw mounting. When mounted separately, it requires the LAD7B106 terminal block (sold separately).
Certified to multiple international standards (IEC, UL, CSA, CCC, EAC, ATEX, Marine) and Green Premium compliant, this overload relay ensures both safety and environmental responsibility in industrial applications.
Specifications
| Feature | Details |
|---|---|
| Range | TeSys / TeSys Deca |
| Product Name | TeSys LRD |
| Device Type | Differential thermal overload relay |
| Device Short Name | LRD |
| Application | Motor protection |
| Thermal Setting Range | 2.5 – 4 A |
| Tripping Class | 10A |
| Compatible Contactors | LC1D09, LC1D12, LC1D18, LC1D25, LC1D32, LC1D38 |
| Reset Modes | Manual / Automatic |
| Auxiliary Contacts | 1 NO + 1 NC |
| Indicators | Flag indicator, test selector |
| Mounting Options | Direct on contactor, DIN rail or screw mount |
| Separate Mounting Accessory | LAD7B106 terminal block (optional) |
| Connection Type | Screw clamp terminals |
| Motor Power Rating (400V) | 1.1 – 1.5 kW |
| Certifications | IEC, UL, CSA, CCC, EAC, ATEX, Marine |
| Environmental Compliance | Green Premium (RoHS/REACH) |
| Network Compatibility | AC / DC |
| Height | 66 mm |
| Width | 45 mm |
| Depth | 70 mm |
| Net Weight | 0.124 kg |
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