Schneider LRD05L Overload Relays Thermal Type — now discontinued, supplied from remaining surplus and broker stock.
| Parameter | Value |
|---|---|
| Control type | Red push-button stop Blue push-button reset |
| Network type | DC AC |
| Product or component type | Differential thermal overload relay |
| Climatic withstand | IACS E10 |
| Voltage | Power circuit 600 V CSA Power circuit 600 V UL Power circuit 690 V IEC 60947-4-1 |
| [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 | 3 A 120 V AC-15 signalling circuit 0.22 A 125 V DC-13 signalling circuit |
| [Ith] conventional free air thermal current | 5 A signalling circuit |
| Network frequency | 0...400 Hz |
| Phase failure sensitivity | Tripping current 130 % of Ir on two phase, the last one at 0 |
| IP degree of protection | IP20 conforming to IEC 60529 |
| Parameter | Value |
|---|---|
| Mounting support | Plate, with specific accessories Rail, with specific accessories Under contactor |
| Connections - terminals | Control circuit screw clamp terminals 2 0.002...0.004 in² (1...2.5 mm²) flexible without cable end Control circuit screw clamp terminals 2 0.002...0.004 in² (1...2.5 mm²) flexible with cable end Control circuit screw clamp terminals 2 0.002...0.004 in² (1...2.5 mm²) solid without cable end Power circuit screw clamp terminals 1 0.002...0.02 in² (1.5...10 mm²) flexible without cable end Power circuit screw clamp terminals 1 0.002...0.006 in² (1...4 mm²) flexible with cable end Power circuit screw clamp terminals 1 0.002...0.009 in² (1...6 mm²) solid without cable end |
| Depth | 3.0 in (76 mm) |
| Width | 1.8 in (45 mm) |
| Height | 2.6 in (66 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 EN 50495 |
| Range | TeSys TeSys Deca |
| Category | US10I1222347 |
| Device short name | LRD |
| Relay application | Motor protection |
| Tightening torque | Control circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals Power circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals |
| 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 20 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 | 0.63...1 A |
| Ambient air temperature for operation | -4...140 °F (-20...60 °C) without derating IEC 60947-4-1 |
The LRD05L is a TeSys Deca thermal overload relay from Schneider, built for 3-pole motor protection with a Class 20 trip curve conforming to IEC 60947-4-1. It carries 1 NO + 1 NC auxiliary contacts and terminates via screw clamp terminals torqued to 1.7 N.m on both control and power circuits. Rated IP20 and certified to EN/IEC 60947-4-1, UL 60947-4-1, and CSA C22.2 No 60947-4-1, it mounts directly under TeSys Deca contactors in the LC1D09 to LC1D38 range.