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Schneider Electric LRN03N Easy TeSys Protect Thermal Overload Relay, 0.25–0.4 A, Class 10A
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$25.00 USD
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Schneider Electric Easy TeSys Protect LRN03N is a differential thermal overload relay designed for reliable motor protection in AC networks. With an adjustable current range of 0.25 to 0.4 A and Class 10A tripping, it integrates seamlessly under EasyPact LC1N06…38 contactors and offers IP20 finger-safe protection. Built to IEC 60947-4-1 standards, it delivers robust performance across a −20 to 60 °C operating window.
- Adjustable thermal protection: 0.25 – 0.4 A
- Class 10A trip curve for motors
- Phase-failure sensitive per IEC 60947-4-1
- Mounts directly under LC1N06…38 contactors
- Auxiliary contacts: 1 NO + 1 NC
- IP20 enclosure, −20 to 60 °C operation
| Product ID | LRN03N |
| Brand | Schneider Electric |
| Range | Easy TeSys |
| Series / Product Line | Easy TeSys Protect |
| Device Short Name | LRN |
| Product Type | Differential thermal overload relay |
| Application | Motor protection |
| Thermal Protection Adjustment Range | 0.25 – 0.4 A |
| Thermal Overload Class | Class 10A |
| Phase-Failure Sensitivity | 30 % Ir on one phase, others at Ir (IEC 60947-4-1) |
| Tripping Threshold | 1.14 ± 0.06 Ir |
| Auxiliary Contacts | 1 NO + 1 NC |
| Conventional Free-Air Thermal Current (Ith) | 5 A (signalling circuit) |
| Rated Operational Voltage (Ue) | ≤ 690 V AC |
| Rated Insulation Voltage (Ui) | 690 V |
| Rated Impulse Withstand Voltage (Uimp) | 6 kV |
| Network Type / Frequency | AC, 50 – 60 Hz |
| Mounting Support | Under contactor; plate or rail with accessories |
| Product Compatibility | LC1N06…38 |
| IP Rating | IP20 (IEC 60529) |
| Operating Temperature | −20 … 60 °C (no derating) |
| Storage Temperature | −60 … 80 °C |
| Dimensions (H × W × D) | 44.5 × 45 × 70 mm |
| Net Weight | 0.124 kg |
| Standards | IEC 60947-4-1, GB 14048 |
| Certification | CCC |
| Mechanical Robustness | Shock 6 Gn / 11 ms; Vibration 3 Gn |
| Dielectric Strength | 6 kV @ 50 Hz (IEC 60255-5) |
| Fire Resistance | 850 °C (IEC 60068-2-1) |
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