TeSys LR9D electronic overload relay, 2A/690V, thermal setting range 0.4-2A, selectable tripping class 5-10-20-30, for protection of 3-phase motors 0.12-0.75kW@400V. Differential device with phase failure and load unbalance detection. It provides a thermal adjustement dial, buttons for test, stop and reset as well as manual-automatic reset selector, dipswitches for tripping class selection, 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 LC1D09-D38. Mounting on DIN rail or screw fixing, separated from contactor, with use of the terminal block LAD7B205 (to be ordered separately). Multi-standards certified (IEC, UL, CSA, CCC), Green Premium compliant (RoHs/Reach).
| Range | TeSys |
|---|---|
| Product name | TeSys LRD |
| Device short name | LR9D |
| Product or Component Type | Electronic thermal overload relay |
| relay application | Motor protection |
| Product Compatibility | LC1D25 LC1D09 LC1D32 LC1D38 LC1D18 LC1D12 |
| Thermal overload class | Class 5…30 |
| Thermal protection adjustment range | 0.4…2 A |
| maximum power consumption in W | 300 mW |
| Mounting support | Under contactor Plate, with specific accessories Rail, with specific accessories |
| [Ue] rated operational voltage | 690 V power circuit 660 V signalling circuit |
|---|---|
| [Ui] rated insulation voltage | Power circuit 1000 V Signalling circuit 690 V |
| Tripping threshold | 1.25 In IEC 60947-4-1 |
| Control type | Red push-button stop and manual reset White 2 microswitches adjustable trip class Red knob automatic reset White dial full-load current adjustment |
| Time range | 1.5…4 min – automatic reset time |
| [Ith] conventional free air thermal current | 5 A signalling circuit |
| Associated fuse rating | 5 A gG for signalling circuit 5 A BS for signalling circuit |
| [Uimp] rated impulse withstand voltage | 6 kV |
| Phase failure sensitivity | Phase difference > 40% 3 s IEC 60947-4-1 |
| Electromagnetic compatibility | Surge withstand 2 kV common mode IEC 61000-4-5 Resistance to electrostatic discharge 8 kV IEC 61000-4-2 Immunity to radiated radio-electrical interference 10 V/m IEC 61000-4-3 Immunity to fast transients 2 kV IEC 61000-4-4 |
| Connections – terminals | Control circuit screw clamp terminals 1 0.00 in² (2.5 mm²) solid or flexible – without cable end Power circuit screw clamp terminals 1 0.02 in² (16 mm²) solid or flexible – without cable end |
| Tightening torque | Control circuit 0.8 N.m screw clamp terminals Power circuit 3.1 N.m screw clamp terminals |
| Height | 2.85 in (72.5 mm) |
| Width | 1.77 in (45 mm) |
| Depth | 3.15 in (79.9 mm) |
| Net Weight | 0.40 lb(US) (0.18 kg) |
| 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 | IECEE CB Scheme UL CSA CCC |
| IP degree of protection | IP20 front face IEC 60529 |
| Ambient air temperature for operation | -13…158 °F (-25…70 °C) IEC 60255-8 |
| Ambient Air Temperature for Storage | -67…176 °F (-55…80 °C) |
| Operating altitude | 6561.68 ft (2000 m) without derating |
| Mechanical robustness | Vibrations 10…150 Hz6 Gn IEC 60068-2-6 Shocks 11 ms15 gn IEC 60068-2-7 |
| Dielectric strength | 6 kV 50 Hz IEC 60255-5 |
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