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Ctube 20-25mm 4-Way Solar Deep Junction Box

Quality Certification:

– Specially designed and produced for solar applications.

– Conforms to IEC61386, ISO, ASTM, UL94.

ctube certication

Product Details & Specifications

Brand: Ctube OEM: Available
Material: PVC Length: Customized
Thickness: Customized OD Range: 20-25mm
Certification: IEC61386, ISO, ASTM, UL94 Color: Gray or customized
Fire Resistance: V0 UV Resistance: Yes
Conductivity: Insulated Hardness: Rigid & impact-resistant
Packing: Plastic bags & PE films Sample: Free
Country: China Factory: Dongguan, Guangdong



– Best for solar power utilities and projects.
– Lids and screws included.
– Meets IEC61386-1, IEC61386-21 , ISO4589-2, ISO9001, ISO14001, UL94.
– Resistant to impact, sunlight, and fire.
– Glossy and smooth surface and interior.
– Durable non-conductive PVC will not rust or corrode
– Suitable for both above and below ground applications.


Ctube 20-25mm 4-Way Solar Shallow Junction Boxes are enclosure housing electrical connections and used to join electrical conduit so that the cables can go 4 ways. They are specially designed and produced for solar applications and protect the electrical connections from the weather, as well as protect people from accidental electric shocks.

Manufacturing Capability

– Production capacity: 50000 pieces per week
– Packaging methods: plastic bags & PE films

Size Chart

Product Code Nominal Size Size (LxWxH) Inner Packing Outer Packing
CT-DJB20-4 20mm 21x18x9mm 10 units/box 200 boxes/carton
CT-DJB25-4 25mm 21x18x9mm 10 units/box 200 boxes/carton


Frequently Asked Questions

What is your MOQ?

Actually, It has always depend on your order quantity, different items have different minimum quantity . As for our conduits, it should be 3000 meters for big size ; and 5000 -10000 meters for small size. For junction box and other boxes ,the moq may be 5000 pcs and the fittings would be more than 10,000pcs

Normally, the time of delivery is around 15-30 days. It depend on your order quantity. If you order a big quantity, it will take more time to finish.

 We usually ship the cargo via Shenzhen and Guangzhou.

We accept 50% T/T in advance, 50% balance, or 100% L/C.

Please submit a general inquiry on our online Contact Form. If you have additional questions please don’t hesitate to send us an email .We respond to customers within 24 hours.

Yes, you are welcome to visit our company, and please make an appointment with us in advance;

Yes,of course.We offer free samples.

Your Second To None Choice

Ctube, as a manufacturer of PVC conduit products with more than 10 years of industry experience, can meet your various needs on production efficiency and product quality.


manufacturing of Ctube

The Ctube facility, located in Dongguan City and Lechang City of China, is China’s leading and advanced production facility for manufacturing PVC conduit. Our facility strives to meet all industry standards and to achieve the certifications that demonstrate our company’s dedication to meeting environmental and system management requirements. Ctube strictly follows the system under ISO 9001, ISO 14001 and ISO 45001.  In manufacturing our national certification products, we are committed to electrical safety, cost-effectiveness, and ease of installation

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