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How to correctly choose an IP68 waterproof cast-aluminum junction box?

First, let’s discuss material selection: Currently, waterproof junction boxes are primarily used in industrial sites and outdoor environments with relatively harsh conditions. From the perspective of product safety performance, we should take into account the materials’ impact resistance, static load strength, insulation properties, non-toxicity, anti-aging performance, corrosion resistance, and flame-retardant properties. 2. Structural Design: The structural design of waterproof junction boxes should consider overall strength, aesthetics, ease of manufacturing, ease of installation, and recyclability. At present, mainstream international manufacturers produce waterproof junction boxes that contain no metal components at all, which simplifies the recycling process. However, most domestic manufacturers currently use different materials with poorer resistance to deformation. Typically, they install brass inserts in the mounting sockets inside the waterproof junction boxes to enhance installation strength. This practice increases both time and costs during the material recycling process. 3. Wall Thickness: When designing a product, it’s important to minimize wall thickness as much as possible while still meeting the requirements for impact resistance and resistance to deformation, thereby reducing overall product costs. In internationally designed waterproof junction boxes, ABS and PC materials generally have wall thicknesses ranging from 2.5 to 3.5 mm; glass-fiber-reinforced polyester typically ranges from 5 to 6.5 mm; and die-cast aluminum products usually have wall thicknesses between 2.5 and 6 mm. The wall thickness chosen during design must accommodate the installation requirements of most components and accessories. 4. Selection of Sealing Gasket Materials: Common sealing gasket materials used in waterproof junction boxes include PUR, EPDM, Neoprene, and Silicone. When selecting a sealing gasket, factors such as temperature range, tensile strength, elongation at break, hardness, density, compression set, and chemical resistance should be considered. 5. Material Selection for Screws Used to Secure the Waterproof Junction Box Cover: The bolts are critical components when joining the cover and base of a waterproof junction box. The choice of bolt material is also crucial. Commonly used materials include PA (nylon) or PA alloys; stainless steel self-tapping screws can also be used. When designing the cover screws, structural strength must be taken into account. Since different users may employ various installation methods—such as using electric screwdrivers or manual installation—the design should consider the torque requirements of the screws. Our company’s products have all been certified to meet safety standards in developed countries such as the U.S., Europe, and Canada, including UL, CUL, TUV/GS, CE, SAA, and PSE. In response to global energy-saving requirements, all our products comply with ERP, NRCAN, DOE, CEC, and MEPS VI energy efficiency standards. We place great emphasis on environmental protection, and all our products meet RoHS, REACH, and California Proposition 65 environmental regulations. Our company commits that every product leaving our facility undergoes ICT testing, PCBA electrical testing, assembly electrical testing, high-voltage testing, aging tests, and pre-packaging inspections, ensuring that we provide customers with power products that are safe, energy-efficient, environmentally friendly, and reliable. Finally, we warmly welcome new and existing customers to call or leave us a message for any inquiries!

2021

12W USB Series Premium Manufacturer

Dongguan Liangrui Electronics Co., Ltd. was established in October 2011 and is located in Hengli Town, Dongguan City—a region with convenient transportation. Our factory covers an area of 5,200 square meters. We primarily specialize in the manufacturing of power adapters, switching power supplies, LED drivers, indoor and outdoor transformers, photocontrol devices, and waterproof cables. We have a dedicated facility comprising an injection molding workshop, a wire harness workshop, an AI component insertion workshop, a surface-mount technology (SMT) workshop, an assembly workshop, a potting workshop, and a finished-product workshop. We provide comprehensive services—from R&D and production to sales—offering LED power supplies, home appliance power supplies, medical power supplies, communication power supplies, and waterproof cables. Product Name: 12W USB Series 1. Full-voltage input design, suitable for global use; 2. Isolated design compliant with low-voltage safety standards; 3. Short-circuit, overvoltage, overcurrent, and overload protection; 4. 100% full-load aging test; 5. Compliant with the latest low-voltage directives and EMC standards of North America, Europe, Australia, and Japan; 6. Compliant with ERP, NRCAN, DOE, CEC, and MEPS Tier VI high-efficiency standards; 7. Minimum 2-year warranty; 8. Suitable for use in dry environments; 9. Miniature enclosure design; 10. USB output power supply; 11. Compliance with standards: EN61347, EN61558, EN62368, UL1310, UL8750. Our products have been certified by safety regulations in developed countries such as the U.S., Europe, and Canada, including UL, CUL, TUV/GS, CE, SAA, and PSE. In response to global energy-saving requirements, all our products comply with ERP, NRCAN, DOE, CEC, and MEPS Tier VI energy efficiency standards. We place great emphasis on environmental protection and ensure that all our products meet RoHS, REACH, California Proposition 65, and other environmental regulations. We promise that every product leaving our company undergoes ICT testing, PCBA electrical testing, assembly electrical testing, high-voltage testing, aging tests, and pre-packaging inspections, guaranteeing our customers safe, energy-efficient, environmentally friendly, and reliable power solutions. We welcome inquiries from both new and existing customers! Contact: Mr. Jiang, 13537305053

2021

Reasons for overheating of the 48V adapter

2021

Domestic power adapter USB charger

2021

The correct way to use a laptop power adapter

2021

The prospects and application scope of power adapters

2021

The speaker adapter switching power supply utilizes modern power electronics technology.

Precautions for Using Waterproof Desktop Power Supplies

2021

12V portable power supply

Precautions for Using Waterproof Desktop Power Supplies

2021

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sales@rico-electronic.net

Dongguan Liangrui Group

Tel: +86-18038246588
Tel: +86-13537305053
Fax: +86-769-83795789
Website: www.rico-electronic.net
Email: sales@rico-electronic.net
Address: Room 1101, Building 1, Unit 6, Shidai Zhihui, Luwu Village, Changping Town, Dongguan City, Guangdong Province

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