LRD4367 is a TeSys LRD thermal overload relay from Schneider Electric to be used with a TeSys D contactor. It protects motors 55kW@400V thanks to a thermal range 95-120A, a tripping class 10A and phase unbalance protection. LRD4367 is a TeSys LRD thermal overload relay from Schneider Electric for direct mounting on TeSys D contactors. With a thermal setting range 95-120A, a tripping class 10A and phase unbalance detection, it protects motors 55kW@400V. It provides manual test & reset buttons, automatic reset, trip auxiliary contact and flag indicator. Available worldwide, it is multi-standards certified (IEC, UL, CSA, CCC, EAC, Marine) and Green Premium compliant (RoHs/Reach). Thermal overload protection relay, bimetallic type, with phase unbalance protection (differential). Direct mounting on the bottom terminals of a Tesys contactor LC1D115 and D150 to form a compact starter. Light and compact, 120mm wide. Temperature compensated for a good accuracy of the protection. Manual control with test & reset buttons, manual / automatic reset selector. Trip signaling with 1NO+1NC auxiliary contacts and trip flag indicator. Can be completed with terminal blocks for separate mounting (LAD7B, LAD96) and remote control devices (LAD703, LA7D03).
| Specifications | |
| Main | |
| Range | TeSys |
| Product name | TeSys LRD |
| TeSys Deca | |
| Product or Component Type | Differential thermal overload relay |
| Device short name | LRD |
| relay application | Motor protection |
| Product Compatibility | LC1D150 |
| LC1D115 | |
| network type | AC |
| DC | |
| Thermal overload class | Class 10A IEC 60947-4-1 |
| Thermal protection adjustment range | 95…120 A |
| [Ui] rated insulation voltage | Power circuit 1000 V IEC 60947-4-1 |
| Power circuit 600 V CSA | |
| Power circuit 600 V UL | |
| 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 | 0.06 A 440 V DC-13 signalling circuit |
| 0.12 A 600 V AC-15 signalling circuit | |
| [Ue] rated operational voltage | 1000 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 IEC 60947-1 |
| 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…140 °F (-20…60 °C) |
| Connections – terminals | Power circuit screw clamp terminals 1 0.006…0.05 in² (4…35 mm²) flexible with cable end |
| 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 0.006…0.08 in² (4…50 mm²) flexible without cable end | |
| Power circuit screw clamp terminals 1 0.006…0.08 in² (4…50 mm²) solid without cable end | |
| Tightening torque | Control circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals |
| Power circuit 79.7 lbf.in (9 N.m) screw clamp terminals | |
| Depth | 5.2 in (132 mm) |
| Net Weight | 2.0 lb(US) (0.9 kg) |
| Environment | |
| Climatic withstand | IACS E10 |
| IP degree of protection | IP20 conforming to IEC 60529 |
| Ambient air temperature for operation | -4…140 °F (-20…60 °C) without derating IEC 60947-4-1 |
| Ambient Air Temperature for Storage | -76…158 °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 | 2.2 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 | |
| ATEX INERIS | |
| 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 | 6.0 in (15.2 cm) |
| Package 1 Width | 5.4 in (13.8 cm) |
| Package 1 Length | 4.02 in (10.2 cm) |
| Package 1 Weight | 29.4 oz (834.0 g) |
| Unit Type of Package 2 | S03 |
| Number of Units in Package 2 | 10 |
| Package 2 Height | 11.8 in (30.0 cm) |
| Package 2 Width | 11.8 in (30.0 cm) |
| Package 2 Length | 15.7 in (40.0 cm) |
| Package 2 Weight | 19.49 lb(US) (8.84 kg) |
| Unit Type of Package 3 | P06 |
| Number of Units in Package 3 | 80 |
| Package 3 Height | 30.3 in (77.0 cm) |
| Package 3 Width | 31.5 in (80.0 cm) |
| Package 3 Length | 23.6 in (60.0 cm) |
| Package 3 Weight | 174.65 lb(US) (79.22 kg) |
| Contractual warranty | |
| Warranty | 18 months |
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