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Schneider LRD03| TeSys LRD thermal overload relays – 0.25…0.4 A – class 10A
Schneider LRD03: A Reliable Overload Relay
it is a renowned name in the realm of overload relays, known for its reliability and efficiency. Designed by Schneider Electric, a leading global provider of energy and automation solutions, the LRD03 offers advanced features and robust performance, making it a preferred choice for various industrial applications.
Introduction
it is an electronic overload relay that provides reliable protection for motors against overload and phase failure. It is engineered to ensure the smooth operation of motors by monitoring their current levels and preventing damage caused by excessive loads. With its cutting-edge technology and user-friendly design, the LRD03 offers optimal performance and safety in diverse industrial environments.
Specifications
it is packed with impressive specifications that make it stand out in the market. It has a rated operational current (In) of 0.1 to 65 A, ensuring compatibility with a wide range of motor applications. Additionally, it offers a thermal protection adjustment range from 0.1 to 65 A, allowing users to customize the protection settings according to their specific requirements.
Features
Overload Protection
One of the key features of it is its reliable overload protection mechanism. It continuously monitors the motor’s current and triggers an alarm or shuts down the motor when it detects an overload condition, preventing costly damage and downtime.
Adjustable Current Setting
it offers flexibility with its adjustable current setting, allowing users to fine-tune the protection parameters based on the motor’s characteristics and operating conditions. This feature enhances the versatility of the relay and ensures optimal protection for different types of motors.
Compact Design
With its compact and space-saving design, it is easy to install and integrate into various control panels and motor enclosures. Its small footprint makes it suitable for applications where space is limited, without compromising on performance or reliability.
Applications
it finds widespread use in various industrial sectors, including manufacturing, automotive, food processing, and more. It is commonly deployed in motor control systems to protect motors from overload, short circuit, and phase failure, ensuring uninterrupted operation and prolonging the lifespan of equipment.
Installation Process
Installing it is straightforward, thanks to its user-friendly design and clear instructions provided by Schneider Electric. It can be easily mounted on DIN rails or directly onto the panel, minimizing installation time and effort. However, it is recommended to consult the product manual and follow standard safety procedures during installation to ensure proper operation.
Maintenance Tips
To ensure optimal performance and longevity of it, regular maintenance is essential. This includes inspecting the relay for any signs of wear or damage, testing its functionality periodically, and keeping it clean and free from debris. Additionally, it is advisable to perform calibration checks as per the manufacturer’s recommendations to maintain accurate protection settings.
Comparison with Other Overload Relays
When compared to traditional thermal overload relays, the Schneider LRD03 offers several advantages, including advanced protection features, adjustable settings, and compact design. Its electronic operation provides faster response times and greater accuracy in detecting overload conditions, ensuring enhanced motor protection and reliability.
Customer Reviews
Customers who have used it have praised its performance, reliability, and ease of installation. Many have reported significant improvements in motor protection and operational efficiency after switching to the LRD03. Overall, the feedback has been overwhelmingly positive, cementing its reputation as a top-quality overload relay in the industry.
Pricing and Availability
it is competitively priced and readily available through Schneider Electric’s authorized distributors and online retailers. Pricing may vary depending on the region and quantity ordered, so it is recommended to contact a local distributor for accurate pricing information and availability.
Conclusion
In conclusion, the Schneider LRD03 is a reliable and versatile overload relay that offers advanced protection for motors in various industrial applications. With its robust construction, advanced features, and user-friendly design, it provides optimal performance and peace of mind to users, ensuring smooth operation and minimizing downtime.
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 LC1D18 LC1D38 LC1D12 LC1D32 LC1D09 |
| Network type | AC DC |
| Thermal overload class | Class 10A conforming to IEC 60947-4-1 |
| Thermal protection adjustment range | 0.25…0.4 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 | 5.400 cm |
| Package 1 Width | 7.100 cm |
| Package 1 Length | 8.000 cm |
| Package 1 Weight | 138.000 g |
| Unit Type of Package 2 | S02 |
| Number of Units in Package 2 | 24 |
| Package 2 Height | 15.000 cm |
| Package 2 Width | 30.000 cm |
| Package 2 Length | 40.000 cm |
| Package 2 Weight | 3.624 kg |
| Unit Type of Package 3 | P06 |
| Number of Units in Package 3 | 384 |
| Package 3 Height | 75.000 cm |
| Package 3 Width | 60.000 cm |
| Package 3 Length | 80.000 cm |
| Package 3 Weight | 69.156 kg |
| Warranty | 18 months |
|---|
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