Screw terminal rail connector STB 50-3X Al/Cu 87330 SIMBLOCK, grey 81004002

Rail-mounted threaded connectors for Al/Cu connections – reliability and installation safety

The STB 50-3X Al/Cu threaded rail connector is a component dedicated to connecting aluminum and copper wires in electrical installations. This product from SIMBLOCK, known for its high-quality electrical equipment, provides secure and durable connections that meet the requirements of modern installations. Its use in construction, industry, automation or renewable energy sources makes it a universal solution for professionals and demanding users.

Design and application

The STB 50-3X connector is designed for easy mounting on TS 35 rail or a mounting plate. It allows connection of up to three wires, increasing installation flexibility. Made of high-quality materials, it guarantees connection stability even under high loads. Particularly important is the ability to connect aluminum and copper wires – a problematic connection that SIMBLOCK solves effectively and safely. The connector design minimizes heating during operation, ensuring the connection remains stable for a long time.

Advantages and benefits

• Versatility: The ability to connect aluminum and copper wires eliminates the need for additional adapters or costly solutions.
• Safety: UL 486E certification confirms compliance with stringent safety standards.
• Durability: Thick housing walls provide resistance to mechanical damage and connection stability even with high tightening torque.
• Easy installation: Allen screws with a fine thread provide secure wire compression.
• Optimal heat dissipation: The unique core shape and ribbing of the housing promote heat dissipation, which translates to a longer connection life.
• Versatility: Intended for wires with a cross-section from 6 mm² to 50 mm² (solid) and from 4 mm² to 35 mm² (stranded with ferrule) allows adaptation to various installation needs.
• Protection against touch: The shape of the housing protects the installer's hands during work.

The STB 50-3X connector is an investment in a reliable and safe electrical installation that will meet the requirements of even the most advanced projects.