Description
The TeSys Deca LRD thermal overload relay is designed for reliable protection of 3-phase motors operating at up to 7.5 kW at 400 V. With a thermal adjustment range of 12 to 18 A and a tripping class of 10A, it offers efficient protection against overload, phase failure, and current imbalance.
This differential relay features 1 NO + 1 NC auxiliary contacts for signalling, a transparent protective cover with lockable sealing, and built-in manual or automatic reset selection. It also includes a test selector for simulating a trip, a flag indicator for quick status checks, and a stop button. The relay connects directly to the terminals of LC1D18 to LC1D38 contactors using screw clamp terminals, or can be mounted separately using the LAD7B106 terminal block (sold separately).
Suitable for AC and DC networks, the device complies with multiple international standards including IEC, UL, CSA, CCC, EAC, ATEX, and Marine certifications. It is also RoHS and REACH compliant under Schneider Electric’s Green Premium label.
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 | 12 – 18 A |
| Tripping Class | 10A |
| Motor Power Rating (400V) | Up to 7.5 kW |
| Auxiliary Contacts | 1 NO + 1 NC |
| Reset Modes | Manual / Automatic |
| Indicators | Trip flag, test selector |
| Mounting Options | Direct on contactor, DIN rail, or screw mount |
| Separate Mounting Accessory | LAD7B106 terminal block (optional) |
| Connection Type | Screw clamp terminals |
| Compatible Contactors | LC1D18, LC1D25, LC1D32, LC1D38 |
| Network Compatibility | AC / DC |
| Certifications | IEC, UL, CSA, CCC, EAC, ATEX, Marine |
| Environmental Compliance | Green Premium (RoHS/REACH) |
| Height | 66 mm |
| Width | 45 mm |
| Depth | 70 mm |
| Net Weight | 0.124 kg |
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