Threaded busbar connector STB 50-3 Al/Cu 87360 SIMBLOCK, brown 81003015

Rail-mounted threaded connectors for Al/Cu connections

The STB 50-3 Al/Cu threaded rail connector is a reliable solution for connecting aluminum and copper wires, designed for demanding electrical installations. This product, from SIMBLOCK by SIMET S.A., combines a solid construction with precision manufacturing, guaranteeing safe and durable connections. This is particularly important in situations where there are differences in wire materials, and traditional connection methods can lead to corrosion and reduced efficiency.

Construction and application

The STB 50-3 connector is designed for mounting on TS 35 rail or a mounting plate, providing flexibility in choosing the installation location. Its construction allows for the connection of up to six wires – both solid and stranded wires with ferrules with cross-sections of 6 mm² to 50 mm² and 4 mm² to 35 mm², respectively. The ability to connect aluminum and copper wires in a single connector eliminates the need for additional connecting elements and minimizes the risk of galvanic corrosion. This solution finds wide application in construction, industry, automation, and renewable energy installations.

Advantages and benefits

• Versatility: Ability to connect aluminum and copper wires in one connector – saves time and costs.
• Safety: High quality workmanship and compliance with standards ensure a reliable electrical connection.
• Durability: Solid construction with thick housing walls guarantees stability on the TS 35 rail and resistance to mechanical damage during wire tightening.
• Efficient heat dissipation: The unique shape of the core and the ribbing of the housing promote heat dissipation generated during operation, preventing overheating of the connection.
• Easy installation: Allen key screws with a fine thread provide secure wire compression.
• Touch protection: The shape of the housing protects the installer's hands during work.
• Rated voltage: Suitable for operation at a rated voltage of 1000 V AC/DC, making it a universal solution for many applications.
• Rated current: Allows for safe transmission of current up to 150 A for both aluminum and copper wires.

Thanks to the use of the STB 50-3 connector, installers can be sure of a solid and safe wire connection, and end-users – trouble-free operation of the electrical installation for a long time.