Schneider Electric TeSys LRD Thermal Overload Relays 63-80A Class 10A LRD3363
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Brand : Schneider Electric
Type : Thermal Overload Relays
Description
Schneider Electric LRD3363 TeSys LRD Thermal Overload Relay is a protective device used in electrical circuits to protect motors from overloading. 63-80A is the current rating of the relay. It means that the thermal overload relay is designed to handle motors with a current draw between 63 and 80 amperes. This is the range of current that the relay is calibrated to monitor and protect against overloading.
Class 10A is the tripping class of the thermal overload relay. The tripping class determines the time it takes for the relay to trip (i.e., disconnect the motor) under overload conditions. Class 10A means that the relay will trip within 10 seconds when the current exceeds the specified limit.
In practical terms, Schneider Electric LRD3363 TeSys LRD Thermal Overload Relay is suitable for protecting motors that draw between 63 and 80 amperes of current. If the current exceeds this range, the relay will trip within 10 seconds to prevent damage to the motor due to overloading.
Features
- 63-80A 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 | LRD3363 |
| 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 | Power Circuit: screw clamp terminals 1 cable(s) 4-35 mm² flexible without cable end, power circuit: screw clamp terminals 1 cable(s) 4-35 mm² flexible with cable end, power circuit: screw clamp terminals 1 cable(s) 4-35 mm² solid without cable end, 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 |
| Control Type | Red Push-button: stop, blue push-button: reset |
| Depth | 115mm |
| Dielectric Strength | 2.2 kV at 50 Hz conforming to IEC 60947-1 |
| Flame Retardance | V1 conforming to UL 94 |
| Height | 81mm |
| 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 | 0.72 A at 500 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, BV, RINA, DNV-GL, LROS (Lloyds register of shipping), ATEX INERIS, UKCA |
| Compatibility | LC1D32, LC1D38 |
| 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: 2.5 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 | 63-80 A |
| Tripping Threshold | 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1 |
| Weight | 0.51 kg |
