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Schneider LRD04 | TeSys LRD thermal overload relays – 0.4…0.63 A – class 10A
Schneider LRD04 | TeSys LRD Thermal Overload Relays: A Comprehensive Overview
Introduction In this article, we’ll delve into the world of it TeSys LRD thermal overload relays, specifically focusing on their features, specifications, benefits, applications, and more.
What are Thermal Overload Relays? Thermal overload relays are protective devices used in electrical systems to prevent overheating of motors and equipment. They monitor the current passing through a motor and trip the circuit if the current exceeds a set limit, thus protecting the motor from damage due to overheating.
Features of Schneider LRD04 it is a part of the TeSys LRD series, designed to offer reliable protection for motors in various applications. Some key features of the LRD04 include:
- Class 10A thermal overload relay
- Suitable for currents ranging from 0.4A to 0.63A
- Compact and easy to install
- Reliable tripping mechanism
- Adjustable current settings for customized protection
Specifications The specifications of it include:
- Rated operational voltage: 690V
- Operating temperature: -25°C to +55°C
- IP protection: IP20
- Compliance with international standards for safety and performance
Benefits Utilizing it offers several benefits to electrical systems:
- Enhanced motor protection
- Prevents equipment damage and downtime
- Easy integration with existing setups
- Long-term reliability and durability
- Cost-effective solution for motor protection needs
Applications it finds its application in various industries and scenarios, including:
- Industrial automation
- HVAC systems
- Pump and compressor protection
- Conveyor systems
- Machine tools
- And more
Conclusion it LRD thermal overload relays provide vital protection to motors and equipment, ensuring efficient and safe operation across multiple applications. Their advanced features, specifications, and benefits make them a preferred choice for industries requiring reliable motor protection solutions.
FAQs
- How does a thermal overload relay work?
- What are the key factors to consider when choosing a thermal overload relay?
- Can Schneider LRD04 be used in outdoor applications?
- Is it necessary to adjust the current settings of the relay?
- How does Schneider LRD04 contribute to energy efficiency in industrial setups?
Additional information
| brands | Schneider Electric |
|---|
Specifications
| Range | TeSys TeSys Deca |
|---|---|
| Product name | TeSys LRD TeSys Deca |
| product or component type | Differential thermal overload relay |
| Device short name | LRD |
| Relay application | Motor protection |
| Product compatibility | LC1D25 LC1D38 LC1D32 LC1D18 LC1D12 LC1D09 |
| Network type | AC DC |
| Thermal overload class | Class 10A conforming to IEC 60947-4-1 |
| Thermal protection adjustment range | 0.4…0.63 A |
| [Ui] 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 |
| Network frequency | 0...400 Hz |
|---|---|
| Mounting support | Plate, with specific accessories Rail, with specific accessories Under contactor |
| Tripping threshold | 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1 |
| Auxiliary contact composition | 1 NO + 1 NC |
| [Ith] conventional free air thermal current | 5 A for signalling circuit |
| Permissible current | 3 A at 120 V AC-15 for signalling circuit 0.22 A at 125 V DC-13 for signalling circuit |
| [Ue] rated operational voltage | 690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1 |
| Associated fuse rating | 4 A gG for signalling circuit 4 A BS for signalling circuit |
| [Uimp] rated impulse withstand voltage | 6 kV |
| Phase failure sensitivity | Tripping current 130 % of Ir on two phase, the last one at 0 |
| Control type | Red push-button: stop Blue push-button: reset |
| Temperature compensation | -20…60 °C |
| 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 |
| Tightening torque | Control circuit: 1.7 N.m - on screw clamp terminals Power circuit: 1.7 N.m - on screw clamp terminals |
| Height | 66 mm |
| Width | 45 mm |
| Depth | 70 mm |
| Net weight | 0.124 kg |
| Climatic withstand | conforming to IACS E10 |
|---|---|
| IP degree of protection | IP20 conforming to IEC 60529 |
| Ambient air temperature for operation | -20…60 °C without derating conforming to IEC 60947-4-1 |
| Ambient air temperature for storage | -60…70 °C |
| Flame retardance | V1 conforming to UL 94 |
| Mechanical robustness | Vibrations: 6 Gn conforming to IEC 60068-2-6 Shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7 |
| Dielectric strength | 1.89 kV at 50 Hz conforming to IEC 60947-1 |
| 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 |
| Product certifications | IEC UL CSA CCC EAC BV RINA DNV-GL LROS (Lloyds register of shipping) ATEX INERIS UKCA |
| Unit Type of Package 1 | PCE |
|---|---|
| Number of Units in Package 1 | 1 |
| Package 1 Height | 4.9 cm |
| Package 1 Width | 7.7 cm |
| Package 1 Length | 8.8 cm |
| Package 1 Weight | 137 g |
| Unit Type of Package 2 | S02 |
| Number of Units in Package 2 | 24 |
| Package 2 Height | 15 cm |
| Package 2 Width | 30 cm |
| Package 2 Length | 40 cm |
| Package 2 Weight | 3.62 kg |
| Unit Type of Package 3 | P06 |
| Number of Units in Package 3 | 384 |
| Package 3 Height | 75 cm |
| Package 3 Width | 60 cm |
| Package 3 Length | 80 cm |
| Package 3 Weight | 69.924 kg |
| Warranty | 18 months |
|---|
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