Schneider Electric TeSys LRD Thermal Overload Relays 0.25-0.4A Class 10A LRD03
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Brand : Schneider Electric
Type : Thermal Overload Relays
Description
Schneider Electric LRD03 TeSys LRD Thermal Overload Relay is a protective device used in electrical systems to prevent motors or other equipment from overheating and potentially causing damage or fire hazards. It works by monitoring the current passing through an engine and tripping if it exceeds a predetermined level for a specified period of time. It is designed to operate in a range of 0.25 to 0.4 amperes (A). This means it's suitable for protecting equipment that operates within this current range.
Class 10A is the tripping time characteristic of the relay. It is a specific tripping class defined by standards. It means the relay will trip within a certain time frame when the current exceeds a certain percentage of its rated current. Class 10A relays typically trip within 10 seconds at 600% of their rated current.
In summary, Schneider Electric LRD03 TeSys LRD Thermal Overload Relay is designed for protecting equipment with a current draw between 0.25A and 0.4A. It is of Class 10A, which implies it will trip within a specific time frame when the current exceeds a certain percentage of its rated current.
Features
- 0.25-0.4A Th Overload Relay
- Protect motors from damage due to overcurrent conditions
- Easier to install and operate with multi-standard screws
| Brand | Schneider Electric |
| Item Name | Thermal Overload Relays |
| Model | LRD03 |
| Conventional Free Air Thermal Current | 5 A for signalling circuit |
| 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 |
| 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 | LC1D25, LC1D18, LC1D38, LC1D12, LC1D32, LC1D09 |
| 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 | 0.25-0.4 A |
| Tripping Threshold | 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1 |
| Net Weight | 0.124 kg |
