Cast Resin T-Joint for Low-Voltage Cable Branching
The Cast Resin T-Joint is designed for reliable branching connections in low-voltage power cable systems. Featuring a transparent, impact-resistant enclosure and polyurethane (PUR) casting resin, it provides excellent electrical insulation, mechanical protection and watertight sealing for indoor, outdoor and underground cable installations..
Key Advantages
T-Shaped Branch Connection
Watertight Protection
PUR Casting Resin
Safe-Filling System
Construction
| Product Type | Cast Resin T-Joint |
| Application | Low-Voltage Cable Branching |
| Joint Technology | Cast Resin |
| Resin Material | Polyurethane (PUR 33) |
| Resin Quantity | 455 ml |
| Compatible Cable Insulation | PVC / XLPE / PE / EPR |
| Main Cable Cross-Section | 5 × 1.5–10 mm² |
| Branch Cable Cross-Section | 3 × 1.5 mm² to 5 × 6 mm² |
| Main Cable Diameter | 16–26 mm |
| Branch Cable Diameter | 10–24 mm |
| Product Length | 276 mm |
| Product Height | 177 mm |
| Operating Temperature | −25°C to +120°C |
| Housing | Transparent, impact-resistant moulding shells |
Application
Suitable for branching cable circuits in industrial buildings, underground power distribution systems and outdoor installations.




From Production to Delivery
From raw material preparation to final shipmen, every stage is caretuly controled to ensure consistent conductor quality, reliable pertormance,and sae delivery. Our roduction,
inspection, packaging, and logistics processes are managed in accordance with applicable standards and project requirements.
Production
Stranded annealed copper conductors are insulated with XLPE, assembled into the required multicore configuration, optionally filled and bound with polyester tape, then covered with the specified black PVC sheath.
Inspection
Inspection focuses on conductor construction, insulation condition, core identification, sheath integrity, overall diameter, conductor resistance and test-voltage requirements against the approved technical schedule.
Packaging
Finished cable is wound on suitable drums according to ordered size, weight and length. Cable ends are protected and drum identification can include cable type, conductor size, core count, length and project reference.
Shipping
Before shipment, cable drums and technical documents are checked against the order. Inspection records, identification data and requested test documentation can be prepared for the customer.
faq
What is a T-Joint in cable systems?
A T-Joint is a cable accessory that creates a branch connection from a main cable to a secondary cable, forming a T-shaped configuration.
What is the purpose of casting resin?
The resin provides electrical insulation and helps protect the cable connection from water and environmental exposure.
Which cable types are compatible?
The reference product supports polymeric-insulated cables made from PVC, XLPE, PE and EPR, subject to the specified cable dimensions.
Can it be used for medium- or high-voltage cables?
The selected reference model is a low-voltage branch joint. Medium- and high-voltage T-shaped plug-in connectors are a different product design and require their own voltage ratings and technical documentation.
Can the T-Joint be installed underground?
The reference product is specified for underground applications. Installation must comply with the manufacturer’s instructions and the applicable environmental requirements.
What is the typical lead time for orders?
Typical production lead times:
- Standard specifications (common sizes): 7-15 working days after order confirmation
- Custom specifications or special requirements: 15-25 working days
- Large volume orders: production schedule confirmed at time of order
We also maintain inventory of fast-moving standard sizes for immediate shipment. Transit time depends on destination port and shipping method. We can ship by sea (most cost-effective for large orders), air (urgent shipments), or rail (for Central Asian destinations).
Request for Free Consultation
Contact Information
Send us your cable requirements and our team will respond quickly with product recommendations, technical support and quotation details.

