Schneider Electric LRD3803 — TeSys thermal overload relay. Bimetallic thermal overload relay for motor protection. Thermal relay 62-80A KL10A EverLink + spring terminals.
Schneider Electric LRD3803 — TeSys thermal overload relay. Bimetallic thermal overload relay for motor protection. Thermal relay 62-80A KL10A EverLink + spring terminals.
| Manufacturer part number (MPN) | LRD3803 |
| EAN / GTIN | 3606481311993 |
| HS code | 8536.90 |
| Sales unit | pcs |
| Setting range | 62-80 A |
| Range | TeSys; TeSys Deca |
| Product name | TeSys LRD; TeSys Deca |
| Product or component type | Differential thermal overload relay |
| Device short name | LRD |
| Relay application | Motor protection |
| Product compatibility | LC1D80A |
| Network type | AC; DC |
| Thermal overload class | Class 10A conforming to IEC 60947-4-1 |
| Thermal protection adjustment range | 62…80 A |
| [Ui] rated insulation voltage | Power circuit: 690 V conforming to IEC 60947-4-1; Power circuit: 600 V conforming to UL 60947-4-1; Power circuit: 600 V conforming to CSA C22.2 No 14 |
| Network frequency | 0...400 Hz |
| Mounting support | Plate, with terminal block LAD96560 on top; Rail, with terminal block LAD96560 on top; Direct mounting under contactor |
| Tripping threshold | 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1 |
| Auxiliary contact composition | 1 NO + 1 NC |
| [Ith] conventional free air thermal current | 5 A for signalling circuit |
| Permissible current | 0.95 A at 380 V AC-15 for signalling circuit; 0.06 A at 440 V DC-13 for signalling circuit |
| [Ue] rated operational voltage | 690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1 |
| Associated fuse rating | 4 A gG for signalling circuit; 4 A BS for signalling circuit |
| [Uimp] rated impulse withstand voltage | 6 kV |
| Power dissipation per pole | 4.8 W |
| Phase failure sensitivity | Tripping current 130 % of Ir on two phase, the last one at 0 |
| Control type | Red push-button: stop; Blue push-button: reset |
| Temperature compensation | -20…60 °C |
| Connections - terminals | Power circuit: EverLink BTR screw connectors 1 cable(s) 1…35 mm² flexible with cable end; Power circuit: EverLink BTR screw connectors 1 cable(s) 1…35 mm² solid; Control circuit: spring terminals 1 cable(s) 1…2.5 mm² solid; Power circuit: EverLink BTR screw connectors 1 cable(s) 1…35 mm² flexible; Power circuit: direct terminal link on top; Control circuit: spring terminals 1 cable(s) 1…2.5 mm² flexible |
| Tightening torque | Power circuit: 5 N.m - on EverLink BTR screw connectors - cable 25 mm²; Power circuit: 8 N.m - on EverLink BTR screw connectors - cable 35 mm² |
| Height | 70 mm |
| Width | 55 mm |
| Depth | 123 mm |
| Product weight | 0.375 kg |
| Climatic withstand | conforming to IACS E10 |
| IP degree of protection | IP20 conforming to IEC 60529 |
| Ambient air temperature for operation | -20…60 °C without derating conforming to IEC 60947-4-1 |
| Ambient air temperature for storage | -60…70 °C |
| Flame retardance | V1 conforming to UL 94 |
| Mechanical robustness | Shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7; Vibrations: 3 GN conforming to IEC 60068-2-6 |
| Dielectric strength | 1.89 kV at 50 Hz conforming to IEC 60947-1 |
| 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 |
| Product certifications | IEC; UL; CSA; CCC; EAC; DNV-GL; RMRS; EU-RO MR; UKCA |
| Number of Units in Package 1 | 1 |
| Warranty (in months) | 18 |
| MOQ | 1 |