Schneider LR2K0312 | Differential thermal overload relays, TeSys K, 3.7 to 5.5 A, class 10A
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1,875 EGP 3,473 EGP
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CompareSchneider LR2K0312 | Differential thermal overload relays, TeSys K, 3.7 to 5.5 A, class 10A
Schneider LR2K0312 Description
Introduction
In the realm of industrial automation and electrical systems, the Schneider LR2K0312 stands out as a vital component. Known for its reliability and efficiency, this thermal overload relay plays a crucial role in protecting motors and ensuring smooth operation. In this article, we’ll delve into the specifics of the Schneider LR2K0312, exploring its features, benefits, and applications.
What is the Schneider LR2K0312?
The Schneider LR2K0312 is a thermal overload relay designed to protect electric motors from overheating. By detecting excessive current levels, it prevents damage to the motor, ensuring longevity and optimal performance. This device is a key player in safeguarding industrial equipment, making it indispensable in various sectors.
Technical Specifications
Understanding the technical aspects of the Schneider LR2K0312 is essential for its proper application. Here are some key specifications:
- Rated Current: 0.25 to 0.40 A
- Voltage: Up to 690 V
- Frequency: 50/60 Hz
- Number of Poles: 3
- Operating Temperature Range: -20°C to +60°C
These specifications highlight the relay’s capacity to handle different electrical loads and environmental conditions.
Design and Construction
The Schneider LR2K0312 is built with durability and efficiency in mind. Its compact design makes it easy to integrate into various systems. The relay is constructed using high-quality materials, ensuring longevity and resistance to wear and tear. Key design features include:
- Compact Size: Facilitates easy installation in confined spaces
- Robust Housing: Protects internal components from environmental damage
- Clear Markings: Ensures easy identification and connection
Functionality and Operation
The operational principle of the Schneider LR2K0312 revolves around thermal detection. When the motor draws excessive current, the relay heats up. Once a critical temperature is reached, the relay trips, cutting off the power supply to prevent overheating. This simple yet effective mechanism ensures motor protection without the need for complex electronics.
Applications of Schneider LR2K0312
The Schneider LR2K0312 is widely used across various industries due to its reliability and efficiency. Common applications include:
- Manufacturing Plants: Protecting motors in assembly lines and machinery
- HVAC Systems: Ensuring smooth operation of heating, ventilation, and air conditioning systems
- Water Treatment Facilities: Safeguarding pumps and motors from damage
In each of these settings, the relay plays a critical role in maintaining operational efficiency and preventing costly downtime.
Installation Process
Installing the Schneider LR2K0312 is straightforward, but it requires careful attention to detail. Here’s a step-by-step guide:
- Turn off Power: Ensure the power supply is completely turned off to avoid electrical shock.
- Mount the Relay: Secure the relay in the designated slot within the motor control panel.
- Connect Wires: Follow the wiring diagram to connect the relay to the motor and power supply.
- Adjust Settings: Set the relay according to the motor’s specifications, adjusting the dial to the appropriate current range.
- Test the Installation: Once installed, turn on the power and test the relay to ensure it operates correctly.
Safety Precautions
When installing or maintaining the Schneider LR2K0312, always adhere to safety guidelines. Wear protective gear, verify power is off before handling electrical components, and consult the manual for specific safety instructions.
Maintenance Tips
To ensure the Schneider LR2K0312 continues to operate efficiently, regular maintenance is essential. Here are some tips:
- Routine Inspections: Check the relay periodically for signs of wear or damage.
- Clean Contacts: Ensure the electrical contacts are clean and free from corrosion.
- Test Functionality: Regularly test the relay to ensure it trips at the correct current levels.
By following these maintenance practices, you can extend the lifespan of the relay and maintain optimal motor protection.
Advantages of Using Schneider LR2K0312
The Schneider LR2K0312 offers several advantages, making it a preferred choice for many industries:
- High Reliability: Consistently protects motors from overheating and damage.
- Cost-Effective: Prevents costly repairs and downtime by ensuring motor safety.
- Ease of Use: Simple design and straightforward installation process.
These benefits make the Schneider LR2K0312 a valuable component in any industrial setup.
Comparisons with Other Relays
When compared to other thermal overload relays, the Schneider LR2K0312 stands out due to its:
- Versatility: Suitable for a wide range of applications and motor types.
- Durability: Built to withstand harsh industrial environments.
- Affordability: Offers excellent value for its performance and reliability.
User Reviews and Testimonials
Feedback from users highlights the effectiveness of the Schneider LR2K0312. Many users appreciate its reliability and ease of installation. Case studies show that it has significantly reduced downtime in various industrial applications, proving its worth in real-world scenarios.
Environmental Considerations
In today’s eco-conscious world, the Schneider LR2K0312 is designed with energy efficiency in mind. Its efficient operation helps reduce energy consumption, contributing to sustainability efforts. Additionally, its robust construction ensures a long lifespan, reducing the need for frequent replacements.
| Range | TeSys |
|---|---|
| Product name | TeSys LRK |
| Product or Component Type | Differential thermal overload relay |
| Device short name | LR2K |
| Relay application | Motor protection |
| Product Compatibility | LC7K LP1K LP4K LC1K |
| Network type | DC AC |
| Thermal overload class | Class 10A IEC 60947-4-1 |
| Thermal protection adjustment range | 3.7…5.5 A |
| [Ui] rated insulation voltage | Power circuit 690 V BS 4941 Power circuit 690 V IEC 60947 Power circuit 750 V VDE 0110 group C Power circuit 600 V CSA C22.2 No 14 |
| Network Frequency | <= 400 Hz |
|---|---|
| Mounting support | Under contactor Plate, with specific accessories Rail, with specific accessories |
| Auxiliary contact composition | 1 NO + 1 NC |
| [Ith] conventional free air thermal current | 6 A signalling circuit |
| [Ue] rated operational voltage | <= 690 V power circuit 690 V AC AC-15 signalling circuit 250 V DC DC-13 signalling circuit |
| Associated fuse rating | 6 A gG for signalling circuit conforming to VDE 0660 6 A gG for signalling circuit conforming to IEC 60947 |
| [Uimp] rated impulse withstand voltage | 6 kV |
| Power dissipation per pole | 2 W |
| Phase failure sensitivity | Yes IEC 60947-4-1 |
| Local signalling | Trip indicator Yellow) |
| Control type | Red push-button trip test function Blue push-button stop and manual reset selector switch manual or automatic reset |
| Connections – terminals | Screw clamp terminals 1 0.00…0.01 in² (1.5…4 mm²)solid screw clamp terminals 2 0.00…0.01 in² (1.5…4 mm²)solid screw clamp terminals 1 0.00…0.01 in² (0.75…4 mm²)flexible without cable end screw clamp terminals 2 0.00…0.01 in² (0.75…4 mm²)flexible without cable end screw clamp terminals 1 0.00…0.00 in² (0.34…2.5 mm²)flexible with cable end screw clamp terminals 2 0.00…0.00 in² (0.34…1.5 mm²)flexible with cable end |
| Tightening torque | 11.51 lbf.in (1.3 N.m) screw clamp terminals Philips No 2 11.51 lbf.in (1.3 N.m) screw clamp terminals flat Ø 6 mm 11.51 lbf.in (1.3 N.m) screw clamp terminals pozidriv No 2 |
| Height | 2.28 in (58 mm) |
| Width | 1.77 in (45 mm) |
| Depth | 2.56 in (65 mm) |
| Net Weight | 0.32 lb(US) (0.145 kg) |
| Standards | IEC 60947 VDE 0660 BS 4941 NF C 63-650 |
|---|---|
| Product Certifications | UL CSA UKCA |
| Protective treatment | TC IEC 60068 TC DIN 50016 |
| IP degree of protection | IP2X conforming to IEC 60529 |
| Ambient air temperature for operation | -4…131 °F (-20…55 °C) without derating IEC 60947 -22…140 °F (-30…60 °C) with derating IEC 60947 |
| Ambient Air Temperature for Storage | -40…158 °F (-40…70 °C) |
| Operating altitude | 6561.68 ft (2000 m) without derating |
| Fire resistance | 1562 °F (850 °C) IEC 60695-2-1 |
| Flame retardance | V1 conforming to UL 94 Requirement 2 conforming to NF F 16-101 Requirement 2 conforming to NF F 16-102 |
| Mechanical robustness | Shocks NO contact10 Gn for 11 ms IEC 60068-2-27 Shocks NC contact10 Gn for 11 ms IEC 60068-2-27 Vibrations NO contact2 Gn, 5…300 Hz IEC 60068-2-6 Vibrations NC contact2 Gn, 5…300 Hz IEC 60068-2-6 |
| Category | US10I1222324 |
|---|---|
| Discount Schedule | 0I12 |
| GTIN | 3389110230567 |
| Returnability | Yes |
| Country of origin | CZ |
| Unit Type of Package 1 | PCE |
|---|---|
| Number of Units in Package 1 | 1 |
| Package 1 Height | 1.97 in (5.000 cm) |
| Package 1 Width | 2.76 in (7.000 cm) |
| Package 1 Length | 3.15 in (8.000 cm) |
| Package 1 Weight | 5.64 oz (160.000 g) |
| Unit Type of Package 2 | S02 |
| Number of Units in Package 2 | 41 |
| Package 2 Height | 5.91 in (15.000 cm) |
| Package 2 Width | 11.81 in (30.000 cm) |
| Package 2 Length | 15.75 in (40.000 cm) |
| Package 2 Weight | 15.00 lb(US) (6.805 kg) |
| Unit Type of Package 3 | P06 |
| Number of Units in Package 3 | 656 |
| Package 3 Height | 29.53 in (75.000 cm) |
| Package 3 Width | 31.50 in (80.000 cm) |
| Package 3 Length | 23.62 in (60.000 cm) |
| Package 3 Weight | 257.68 lb(US) (116.882 kg) |
| Warranty | 18 months |
|---|
