Schneider Electric TeSys LRD Thermal Overload Relays 2.5-4A Class 10A LRD08
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Brand : Schneider Electric
Type : Thermal Overload Relays
Description
Schneider Electric LRD08 TeSys LRD Thermal Overload Relays is a protective device used in electrical systems to prevent motors or other electrical equipment from overheating and potentially causing damage or starting a fire. It works by monitoring the current passing through a motor and tripping if it exceeds a certain threshold for a specified period of time.
The relay is designed to handle motors with a current draw between 2.5 to 4 amperes. This means it can protect a motor that operates within this range. Class 10A is a classification used to specify the tripping time characteristics of the thermal overload relay.
Class 10A indicates that the relay will trip in 10 seconds when subjected to 6 times the full load current. This means that if the motor draws 6 times its rated current for more than 10 seconds, the relay will trip and protect the motor from damage.
Features
- 2.5..4A 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 | LRD08 |
| Package1 Length*Width*Height | 8.9 cm x 7.8 cm x 4.8 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 | LC1D12, LC1D09, LC1D25, LC1D38, LC1D32, LC1D18 |
| 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 | 2.5-4 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 | 140.9 g |
