Schneider Electric TeSys LRD Thermal Overload Relays 4-6 A Class 10A LRD10
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Brand : Schneider Electric
Type : Thermal Overload Relays
Description
Schneider Electric LRD10 TeSys LRD Thermal Overload Relays are designed to protect motors from overloads and phase failures. The 4-6 A is designed to handle motor currents within the range of 4 to 6 amperes. Class 10A refers to the tripping class, which means Class 10A relay will trip or activate in response to a sustained current that is 10 times the nominal current rating of the relay, which in this case is 4-6 A. This means the relay will trip when the current reaches between 40 and 60 A.
Schneider Electric LRD10 TeSys LRD Thermal Overload Relays are a crucial component in motor protection schemes, ensuring that the motor is not subjected to excessive currents that could lead to damage or overheating. They work by monitoring the current passing through the motor and, if it exceeds a specified threshold for a certain period of time, the relay will trip and disconnect the motor from the power supply.
Features
- 4..6A Th Overload Relay
- Protect motors from overloads and phase failures
- Easier to install and operate with multi-standard screws
| Brand | Schneider Electric |
| Item Name | Thermal Overload Relays |
| Model | LRD10 |
| Package1 Length*Width*Height | 8.8 cm x 7.8 cm x 5.0 cm |
| Country of Manufacturing | France |
| Conventional Free Air Thermal Current | 5 A for Signalling Circuit |
| Rated Operational Voltage | 690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1 |
| Rated Insulation Voltage | power circuit: 600 V conforming to CSA, power circuit: 600 V conforming to UL, power circuit: 690 V conforming to IEC 60947-4-1 |
| Rated Impulse Withstand Voltage | 6 kV |
| Ambient Air Temperature For Operation | -20-60 °C without derating conforming to IEC 60947-4-1 |
| Ambient Air Temperature For Storage | -60-70 °C |
| Associated Fuse Rating | 4 A gG for signalling circuit, 4 A BS for signalling circuit |
| Auxiliary Contact Composition | 1 NO + 1 NC |
| Climatic Withstand | Conforming to IACS E10 |
| Compatibility Code | LRD |
| Connections - Terminals | Control Circuit: screw clamp terminals 2 cable(s) 1-2.5 mm² flexible without cable end, control circuit: screw clamp terminals 2 cable(s) 1-2.5 mm² flexible with cable end, control circuit: screw clamp terminals 2 cable(s) 1-2.5 mm² solid without cable end, power circuit: screw clamp terminals 1 cable(s) 1.5-10 mm² flexible without cable end, power circuit: screw clamp terminals 1 cable(s) 1-4 mm² flexible with cable end, power circuit: screw clamp terminals 1 cable(s) 1-6 mm² solid without cable end |
| Control Type | Red Push-button: stop, blue push-button: reset |
| Depth | 70 mm |
| Dielectric Strength | 1.89 kV at 50 Hz conforming to IEC 60947-1 |
| Flame Retardance | V1 conforming to UL 94 |
| Height | 66 mm |
| IP Degree Of Protection | IP20 Conforming to IEC 60529 |
| Irms Rated Making Capacity | 250 A at 440 V for power circuit conforming to IEC 60947, 140 A AC for signalling circuit conforming to IEC 60947-5-1, 250 A DC for signalling circuit conforming to IEC 60947-5-1 |
| Mechanical Robustness | Vibrations: 6 Gn conforming to IEC 60068-2-6, shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7 |
| Mounting Support | Plate, with specific accessories, rail, with specific accessories, under contactor |
| Network Frequency | 0...400 Hz |
| Network Type | DC, AC |
| Permissible Current | -3 A at 120 V AC-15 for signalling circuit, 0.22 A at 125 V DC-13 for signalling circuit |
| Phase Failure Sensitivity Tripping Current | 130 % of Ir on two phase, the last one at 0 |
| Certifications | IEC, UL, CSA, CCC, EAC, BV, RINA, DNV-GL, LROS (Lloyds register of shipping), ATEX INERIS, UKCA |
| Compatibility | LC1D09, LC1D32, LC1D38, LC1D12, LC1D18, LC1D25 |
| Range | TeSys, TeSys Deca |
| Rated Operational Voltage Limits | 690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1 |
| Relay Application | Motor Protection |
| 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 |
| Tightening Torque | Control Circuit: 1.7 N.m - on screw clamp terminals, power circuit: 1.7 N.m - on screw clamp terminals |
| Width | 45 mm |
| Temperature Compensation | -20-60 °C |
| Thermal Overload Class | Class 10A conforming to IEC 60947-4-1 |
| Thermal Protection Adjustment Range | 4-6 A |
| Tripping Threshold | 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1 |
| Mechanical Robustness | Vibrations : 6 Gn conforming to IEC 60068-2-6, shocks: 15 Gn for11 ms conforming to IEC 60068-2-7 |
| Weight | 141.0 g |
