Description
Schneider LRD3365 TeSys, Thermal overload relays, TeSys Deca, 80...104A, class 10A, motor protection
TeSys LRD thermal overload relay, 50A/1000V, thermal setting range 37-50A, tripping class 10A, for protection of 3-phase motors 22kW@400V. Differential device with phase failure and load unbalance detection. It provides a thermal adjustement dial, a manual-automatic reset selector acting also as reset button, a trip test button for simulation of a tripping, a stop button, a flag indicator and 2 auxiliary contacts 1NO+1NC for fault signalling. Settings are protected by a transparent cover lockable by sealing. Connection by screw clamp terminals, it connects directly to the bottom terminals of 3-pole contactors LC1D80-D95. Mounting on DIN rail or screw fixing, separated from the contactor, with use of a terminal block LA7D3064 (to be ordered separately). Multi standards certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine), Green Premium compliant (RoHs/Reach).
Features:
• Ensure high safty with phase failure and load unbalance detection
• It is designed with a transparent cover lockable by sealing in case of misoperation
• Simple mounting on DIN rail or screw fixing
• Green Premium product
Technical Specifications
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| Mount | Plate, with specific accessories |
| Thermal overload class | class 10A conforming to IEC 60947-4-1 |
| Ambient air temperature for operation | -20-60 °C without derating conforming to IEC 60947-4-1 |
| Current Type | AC |
| Contactor | LC1D80, LC1D95 |
| [Ith] conventional free air thermal current | 5 A for signalling circuit |
| Supplier Code | LRD3357 |
| Trip Class | Class 10A |
| Ambient air temperature for storage | -60-70 °C |
| Permissible current | 0.06 A at 440 V DC-13 for signalling circuit |
| Network frequency | 0...400 Hz |
| Dielectric strength | 2.2 kV at 50 Hz conforming to IEC 60947-1 |
| Network type | AC |
| Terminal Type | Screw Clamp |
| Control type | blue push-button: reset |
| IP degree of protection | IP20 conforming to IEC 60529 |
| Range | TeSys |
| Flame retardance | V1 conforming to UL 94 |
| Frequency Rating | 0 - 400 Hz |
| Weight | 0.51 kg |
| Item Name | Overload Relay |
| Tightening torque | power circuit: 9 N.m - on screw clamp terminals |
| Thermal protection adjustment range | 37-50 A |
| Current | 37 - 50A |
| Auxiliary contact composition | 1 NO + 1 NC |
| Connections - terminals | control circuit: screw clamp terminals 2 cable(s) 1-2.5mm² flexible without cable end |
| Tripping threshold | 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1 |
| Associated fuse rating | 4 A BS for signalling circuit |
| Standard | CSA, UL Listed |
| Depth | 115mm |
| Mounting support | rail- with specific accessories |
| Voltage | 1000 V |
| Climatic withstand | conforming to IACS E10 |
| Degree of Protection | IP20 |
| Height | 81mm |
| Width | 70mm |
| Temperature Rating | -20 to 60 deg C |
| Device short name | LRD |
| Phase failure sensitivity | tripping current 130 % of Ir on two phase- the last one at 0 |
| Compatibility code | LRD |
| Product compatibility | LC1D95 |
| Mechanical robustness | shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7 |
| [Ue] rated operational voltage | 1000 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1 |
| [Ui] rated insulation voltage | power circuit: 600 V conforming to CSA |
| Temperature compensation | -20-60 °C |
| Standards | UL 60947-4-1 |
| Brand Name | Schneider Electric |
| Product certifications | UKCA |
| EAN/UPC | 3389110519952 |
| Type | Thermal |
| [Uimp] rated impulse withstand voltage | 6 kV conforming to IEC 60947-1 |
| Reset Type | Manual/Automatic |
| IP Rating | IP20 |
| Product name | TeSys Deca |
| Relay application | motor protection |
| Frequency | 0...400 Hz |
| Net weight | 0.51 kg |
| Product or component type | differential thermal overload relay |
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