NEMA sockets (National Electrical Manufacturers Association sockets) are standardized connectors used for various electrical equipment. The JL-240 series sockets are primarily used in outdoor lighting systems, especially street lighting. This series has different specifications and variants to meet diverse application requirements. Below is a detailed description and selection guide.
Detailed description:
1. Low Voltage Contact Arrangement
Type A: Four low voltage contacts (4 pads)
Type B: Two low voltage contacts (2 pads)
2. Wire Gauge and Grade
16 (or 16G): AWG #16, AWM1015 (or AWG #16, AWM3321)
14 (or 14G): AWG #14, AWM1015 (or AWG #14, AWM3321)
3. Wire Length
Standard length: 6 inches or customized as required.
4. Rear Cover Protection Level
Type R: Includes rear cover for IP65 protection (with equal or higher IP protection)
Type S: Sealed rear cover for IP66 protection (with equal or higher IP protection)
5. Mounting Bracket Thickness
Type L2: Aluminum 1.8~2.0mm thick
Type L3: Aluminum 2.8~3.0mm thick
Selection Guide for NEMA Socket JL-240
1. Choosing Based on Application Environment
Outdoor Environments: Select models with high protection levels (such as IP65 or IP66) to ensure normal operation in harsh weather conditions.
Industrial Environments: Choose models with corrosion-resistant and high-strength brackets (such as aluminum 2.8~3.0mm thick) for increased durability.
2. Choosing Based on Load Type
High-Power Equipment: Select models with larger wire gauge (such as AWG #14) and longer wire lengths to ensure the safety and stability of current transmission.
Standard Power Equipment: Select models with standard wire gauge (such as AWG #16) and standard wire lengths to meet general lighting needs.
3. Choosing Based on Installation Requirements
Rotation Limitation Function: Choose models with limiting features to ensure the socket does not rotate easily after installation, maintaining a stable connection.
Low Voltage Signal Connection: Select Type A or Type B low voltage contact arrangements as needed to ensure accurate and reliable signal connections.
Specific Model Examples and Application Scenarios
| JL-240A-16G-06-R-L3 | JL-240B-14-06-S-L2 | |
| Low Voltage Contacts | Four low voltage contacts | Two low voltage contacts |
| Wire Gauge and Grade | AWG #16, AWM3321 | AWG #14, AWM1015 |
| Wire Length | 6 inches | 6 inches |
| Rear Cover Protection Level | IP65 | IP66 |
| Mounting Bracket Thickness | Aluminum 2.8~3.0mm | Aluminum 1.8~2.0mm |
| Application Scenario | Suitable for outdoor lighting systems that require high protection levels and stable connections, such as main streets and highways lighting. | Suitable for industrial areas and harsh environments, providing high durability and protection performance. |
Conclusion
Choosing the right NEMA socket JL-240 model requires considering the application environment, load type, and installation requirements comprehensively. By selecting and using the JL-240 sockets appropriately, you can ensure the reliability and stability of outdoor lighting systems, enhancing overall system performance and lifespan.
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