The Schneider Electric LRD10 is a TeSys Deca 3-pole thermal overload relay with a current adjustment range of 4…6 A, trip class 10A, and a 1 NO + 1 NC auxiliary contact. It protects motors against overload and phase failure and mounts directly under a TeSys D contactor.
Set the dial to the full-load current on the motor nameplate. The relay has a blue reset button and a red stop button, and phase-failure sensitivity per IEC 60947-4-1. Thermal overload relays are a frequent replacement item in motor panels because they are often damaged by repeated trips or wrong settings.
Browse all Schneider parts, or see the TeSys D LC1D large contactors.
Technical data
| Schneider reference | LRD10 |
|---|---|
| Range | TeSys; TeSys Deca |
| Product type | Thermal overload relay |
| Adjustment range | 4…6 A |
| Trip class | Class 10A conforming to IEC 60947-4-1 |
| Compatible contactors | LC1D09; LC1D32; LC1D38; LC1D12; LC1D18; LC1D25 |
| Tripping threshold | 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1 |
| Phase failure sensitivity | Tripping current 130 % of Ir on two phase, the last one at 0 |
| Auxiliary contacts | 1 NO + 1 NC |
| Rated operational voltage | 690 V AC 0…400 Hz for power circuit conforming to IEC 60947-4-1 |
| Rated insulation voltage | Power circuit: 600 V conforming to CSA |
| Control | Red push-button: stop; Blue push-button: reset |
| Temperature compensation | -20…60 °C |
| Mounting | Plate, with specific accessories; Rail, with specific accessories; Under contactor |
| Degree of protection | IP20 conforming to IEC 60529 |
| Dimensions (W x H x D) | 45 x 66 x 70 mm |
| Net weight | 0.124 kg |
| Product life status | Commercialised |
| Condition | New, original Schneider Electric |
Typical applications
- Overload protection in DOL and star-delta starters
- Pump, fan and compressor motor panels
- Conveyor and machine motors
- Replacement of a damaged or wrongly sized overload relay
Compatibility and replacement
Schneider lists the LRD10 as compatible with LC1D09; LC1D32; LC1D38; LC1D12; LC1D18; LC1D25. Choose the range so that the motor full-load current is inside it, ideally in the middle. Matching contactors in our new range (plain-text references): LC1D09M7, LC1D12M7, LC1D18M7, LC1D25M7, LC1D32M7, LC1D09BD.
Frequently asked questions
Which current should I set?
Set the dial to the full-load current on the motor nameplate. Do not set it higher to stop nuisance trips; find the cause instead.
Does it mount on any contactor?
It mounts directly under the TeSys D contactors listed by Schneider (LC1D09; LC1D32; LC1D38; LC1D12; LC1D18; LC1D25). With a separate mounting kit it can also be fixed on a DIN rail or plate.
Do you ship to my country, and what is the warranty?
Yes. RendatSP ships worldwide from Yiwu, China, by air in 5 to 7 days once the part is ready, and every part carries a 1-year warranty. Send the order number and quantity on WhatsApp and we will reply with a quotation.
Every part RendatSP supplies is new and original, carries a 1-year warranty and ships worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Send us the order number and quantity on WhatsApp or through the inquiry form and we will quote the same working day. Agents in Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
