LR3D380 - Schneider Electric
MPNLR3D380
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Square D LR3D380 Thermal Overload Relay|Square D LR3D380 Thermal Overload Relay
$194.59Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Control type | Red push-button stop Blue push-button reset |
| Network type | AC DC |
| Product or component type | Non differential thermal overload relay |
| Climatic withstand | IACS E10 |
| Voltage | Power circuit 690 V IEC 60947-4-1 Power circuit 600 V UL 60947-4-1 Power circuit 600 V CSA C22.2 No 14 |
| [Ue] rated operational voltage | 690 V AC 0...400 Hz power circuit IEC 60947-4-1 |
| [Uimp] rated impulse withstand voltage | 6 kV |
| Permissible current | 0.95 A 380 V AC-15 signalling circuit 0.06 A 440 V DC-13 signalling circuit |
| [Ith] conventional free air thermal current | 5 A signalling circuit |
| Power dissipation per pole | 4.8 W |
| Network frequency | 0...400 Hz |
| Phase failure sensitivity | Tripping current 130 % of Ir on two phase, the last one at 0 |
All specifications
| Parameter | Value |
|---|---|
| IP degree of protection | IP20 conforming to IEC 60529 |
| Mounting support | Plate, with terminal block LAD96560 on top Rail, with terminal block LAD96560 on top Direct mounting under contactor |
| Connections - terminals | Control circuit screw clamp terminals 2 0.002...0.004 in² (1...2.5 mm²) flexible with cable end Power circuit EverLink BTR screw connectors 1 0.002...0.05 in² (1...35 mm²) flexible with cable end Power circuit EverLink BTR screw connectors 1 0.002...0.05 in² (1...35 mm²) solid Control circuit screw clamp terminals 2 0.002...0.004 in² (1...2.5 mm²) solid Control circuit screw clamp terminals 2 0.002...0.004 in² (1...2.5 mm²) flexible Power circuit EverLink BTR screw connectors 1 0.002...0.05 in² (1...35 mm²) flexible Power circuit direct terminal link top |
| Depth | 4.8 in (123 mm) |
| Width | 2.2 in (55 mm) |
| Height | 2.8 in (70 mm) |
| Standards | EN/IEC 60947-4-1 EN/IEC 60947-5-1 UL 60947-4-1 UL 60947-5-1 CSA C22.2 No 60947-4-1 CSA C22.2 No 60947-5-1 GB/T 14048.4 GB/T 14048.5 |
| Range | TeSys TeSys Deca |
| Category | US10I1222347 |
| Flame retardance | V1 conforming to UL 94 |
| Device short name | LR3D |
| Relay application | Motor protection |
| Tightening torque | Control circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals Power circuit 44.3 lbf.in (5 N.m) EverLink BTR screw connectors 0.04 in² (25 mm²) Power circuit 70.8 lbf.in (8 N.m) EverLink BTR screw connectors 0.05 in² (35 mm²) |
| Tripping threshold | 1.14 +/- 0.06 Ir IEC 60947-4-1 |
| Dielectric strength | 1.89 kV 50 Hz IEC 60947-1 |
| Mechanical robustness | Shocks15 Gn for 11 ms IEC 60068-2-7 Vibrations3 GN IEC 60068-2-6 |
| Associated fuse rating | 4 A gG for signalling circuit 4 A BS for signalling circuit |
| Thermal overload class | Class 10A IEC 60947-4-1 |
| Temperature compensation | -4...140 °F (-20...60 °C) |
| Auxiliary contact composition | 1 NO + 1 NC |
| Ambient air temperature for storage | -76...158 °F (-60...70 °C) |
| Thermal protection adjustment range | 62...80 A |
| Ambient air temperature for operation | -4...140 °F (-20...60 °C) without derating IEC 60947-4-1 |
MPN
LR3D380