TeSys LRD overload relays are designed to be used with TeSys D contactors to make a motor starter. This overload relay can be used with 9 amp through 38 amp TeSys D contactors. These differential thermal overload relays detect over currents in the lines to the motor. When an overcurrent is detected the overload relay working with the contactor will disconnect the power to the motor. This will minimize the damage to the motor windings. This overload relay has an adjustable trip current rating of 2.5 to 4.0 amperes. This trip current rating is calibrated per Class 10A. Multi standards certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine), Green Premium compliant (RoHs/Reach).
| Specifications | |
| Main | |
| 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 | LC1D12 |
| LC1D09 | |
| LC1D25 | |
| LC1D38 | |
| LC1D32 | |
| LC1D18 | |
| Network type | AC |
| DC | |
| Thermal overload class | Class 10A IEC 60947-4-1 |
| Thermal protection adjustment range | 2.5…4 A |
| [Ui] rated insulation voltage | Power circuit 600 V CSA |
| Power circuit 600 V UL | |
| Power circuit 690 V IEC 60947-4-1 | |
| Complementary | |
| Network Frequency | 0…400 Hz |
| Mounting support | Plate, with specific accessories |
| Rail, with specific accessories | |
| Under contactor | |
| Tripping threshold | 1.14 +/- 0.06 Ir IEC 60947-4-1 |
| Auxiliary contact composition | 1 NO + 1 NC |
| [Ith] conventional free air thermal current | 5 A signalling circuit |
| Permissible current | 3 A 120 V AC-15 signalling circuit |
| 0.22 A 125 V DC-13 signalling circuit | |
| [Ue] rated operational voltage | 690 V AC 0…400 Hz power circuit 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 |
| 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 | -4.0000000000…140.0000000000 °F (-20…60 °C) |
| 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 | |
| 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 | |
| Height | 2.6 in (66 mm) |
| Width | 1.8 in (45 mm) |
| Depth | 2.8 in (70 mm) |
| Net Weight | 0.273 lb(US) (0.124 kg) |
| Environment | |
| Climatic withstand | IACS E10 |
| IP degree of protection | IP20 conforming to IEC 60529 |
| Ambient air temperature for operation | -4.0000000000…140.0000000000 °F (-20…60 °C) without derating IEC 60947-4-1 |
| Ambient Air Temperature for Storage | -76.0000000000…158.0000000000 °F (-60…70 °C) |
| Flame retardance | V1 conforming to UL 94 |
| Mechanical robustness | Vibrations6 Gn IEC 60068-2-6 |
| Shocks15 Gn for 11 ms IEC 60068-2-7 | |
| Dielectric strength | 1.89 kV 50 Hz 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 | |
| EN 50495 | |
| Product Certifications | IEC |
| UL | |
| CSA | |
| CCC | |
| EAC | |
| BV | |
| RINA | |
| DNV-GL | |
| LROS (Lloyds register of shipping) | |
| ATEX INERIS | |
| UKCA | |
| Ordering and shipping details | |
| Category | US10I1222347 |
| Discount Schedule | 0I12 |
| GTIN | 3.38911E+12 |
| Returnability | Yes |
| Country of origin | FR |
| Packing Units | |
| Unit Type of Package 1 | PCE |
| Number of Units in Package 1 | 1 |
| Package 1 Height | 1.890 in (4.800 cm) |
| Package 1 Width | 3.071 in (7.800 cm) |
| Package 1 Length | 3.504 in (8.900 cm) |
| Package 1 Weight | 4.970 oz (140.900 g) |
| Unit Type of Package 2 | S02 |
| Number of Units in Package 2 | 24 |
| Package 2 Height | 5.906 in (15.000 cm) |
| Package 2 Width | 11.811 in (30.000 cm) |
| Package 2 Length | 15.748 in (40.000 cm) |
| Package 2 Weight | 8.201 lb(US) (3.720 kg) |
| Contractual warranty | |
| Warranty | 18 months |
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