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The LRE relay is a differential thermal overload relays for use with fuses or magnetic circuit-breakers GV2 L and GV3 L. Its thermal setting range is 62-99A 50/60Hz and the tripping class is 10A conforming to IEC 60947-4-1. It can be direct mounted on Easy TeSys Control contactors with directly connected by connector. It protects unbalanced loads and motors with 37-55kW at 400VAC. It provides manual or automatic reset, trip auxiliary contact and flag indicator. Available worldwide, it is multi-standards certified (CB scheme,CE,CCC,EAC) and Environmental compliant (RoHS/REACH).
Products specifications
| Attribute name | Attribute value |
|---|---|
| Main | |
| Device short name | LRE |
| Range | Easy TeSys |
| Product or component type | differential thermal overload relay |
| Relay application | motor protection |
| Phase failure sensitivity | tripping current 130 % of Ir on two phase, the last one at 0 conforming to IEC 60947-4-1 |
| Range of product | Easy TeSys Protect |
| Complementary | |
| Temperature compensation | -20-60 °C |
| Product compatibility | LC1E120...630 |
| Depth | 134 mm |
| Width | 180 mm |
| Control type | push-button green reset: , push-button red stop: |
| Mounting support | plate, under contactor |
| Tightening torque | signalling circuit: 1.7 N.m - on screw clamp terminals, power circuit: 27.5 N.m - on lugs M8, power circuit: 27.5 N.m - on bars M8 |
| Tripping threshold | 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1 |
| [Ui] rated insulation voltage | 690 V conforming to IEC 60947-4-1 |
| Local signalling | trip indicator |
| Connections - terminals | power circuit: lugs, power circuit: bars - busbar cross section: 3 x 18 mm, signalling circuit: screw clamp terminals 2 1-2.5 mm² - cable stiffness: solid without cable end, signalling circuit: screw clamp terminals 2 1-2.5 mm² - cable stiffness: flexible with cable end, signalling circuit: screw clamp terminals 2 1-2.5 mm² - cable stiffness: flexible without cable end |
| [Uimp] rated impulse withstand voltage | 6 kV |
| Net weight | 2.2 kg |
| Associated fuse rating | 5 A gG for signalling circuit, 125 A aM for power circuit, 160 A gG for power circuit |
| Thermal overload class | class 10A conforming to IEC 60947-4-1 |
| Network type | AC |
| Thermal protection adjustment range | 62-99 A |
| [Ue] rated operational voltage | <= 690 V AC |
| Connection pitch | 34.8 mm |
| [Ith] conventional free air thermal current | 5 A for signalling circuit |
| Auxiliary contact composition | 1 NO + 1 NC |
| Height | 141 mm |
| Mechanical robustness | vibrations: 3 GN conforming to IEC 60068-2-6, shocks: 6 Gn for 11 ms conforming to IEC 60068-2-7 |
| Signalling function | relay trip indicator |
| Network frequency | 50...60 Hz |
| Environment | |
| Fire resistance | 850 °C conforming to IEC 60068-2-1 |
| Protective treatment | TH conforming to IEC 60068 |
| Ambient air temperature for storage | -60-80 °C |
| IP degree of protection | IP00 conforming to IEC 60529 |
| Dielectric strength | 6 kV at 50 Hz conforming to IEC 60255-5 |
| Ambient air temperature for operation | -20-70 °C with derating, -20-60 °C without derating conforming to IEC 60947-4-1 |
| Electromagnetic compatibility | surge withstand: 6 kV conforming to IEC 60801-5 |
| Standards | IEC 60947-4-1, IEC 60947-5-1 |
| Product certifications | EAC |
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