Schneider Electric TeSys LRD Thermal Overload Relays 30-40A Class 10A LRD340
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Brand : Schneider Electric
Type : Thermal Overload Relays
Description
Schneider Electric LRD340 TeSys LRD Thermal Overload Relay is a protective device used to prevent overheating of electric motors. It works by monitoring the current passing through the motor and, if it detects an overload condition (too much current), it will trip and disconnect the power to the motor.
30-40A is the range of current that the thermal overload relay is designed to handle. It means it's suitable for motors with a current draw between 30 and 40 amperes. Class 10A is a specific type of thermal overload relay classification. In this context, Class 10A refers to the trip time characteristic. Class 10A overload relays are designed to trip (disconnect the power) within a specified time frame when the current exceeds a certain threshold.
Features
- 30-40A 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 | LRD340 |
| Conventional Free Air Thermal Current | 5 A for Signalling Circuit |
| Rated Operational Voltage Limits | 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: EverLink BTR screw connectors 1 cable(s) 1-35 mm² flexible without cable end, power circuit: EverLink BTR screw connectors 1 cable(s) 1-35 mm² flexible with cable end, power circuit: EverLink BTR screw connectors 1 cable(s) 1-35 mm² solid without cable end |
| Control Type | Red Push-button: stop, blue push-button: reset |
| Depth | 123 mm |
| Dielectric Strength | 1.89 kV at 50 Hz conforming to IEC 60947-1 |
| Flame Retardance | V1 conforming to UL 94 |
| Height | 70 mm |
| IP Degree Of Protection | IP20 Conforming to IEC 60529 |
| Mechanical Robustness | shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7, vibrations: 4 gn conforming to IEC 60068-2-6 |
| Mounting Support | Plate, with specific accessories, rail, with specific accessories, under contactor |
| Network Frequency | 0...400 Hz |
| Network Type | DC, AC |
| Permissible Current | 0.95 A at 380 V AC-15 for signalling circuit, 0.06 A at 440 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, DNV-GL, RMRS, EU-RO MR, LROS (Lloyds register of shipping), ATEX INERIS, UKCA |
| Compatibility | LC1D65A, LC1D50A, LC1D40A |
| 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: 5 N.m - on EverLink BTR screw connectors |
| Width | 45 mm |
| Temperature Compensation | -20-60 °C |
| Thermal Overload Class | Class 10A conforming to IEC 60947-4-1 |
| Thermal Protection Adjustment Range | 30-40 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 |
