Threaded busbar connector STB 300 Al/Cu 87910 SIMBLOCK, black 81301007

Screw terminal rail connectors – reliable Al/Cu connections

The STB 300 Al/Cu screw terminal rail connector is designed for connecting aluminum and copper conductors in electrical installations. The connector's design ensures a secure and durable connection, minimizing the risk of failure and energy loss. This is particularly important in applications requiring high reliability, such as construction, industrial automation, or renewable energy installations.

Design and application

The STB 300 connector is designed for easy mounting on TS 35 rail or a mounting plate. The unique shape of the core and the ribbing of the body effectively dissipate heat generated during operation, preventing overheating of the connection. Thick housing walls guarantee stability and resistance to deformation during tightening of the conductors. Additional space for a measuring connection allows monitoring of the connection status and installation monitoring.

Advantages and benefits

• Versatility: Ability to connect aluminum and copper conductors with cross-sections from 6 mm² to 300 mm² (solid wire) and from 4 mm² to 240 mm² (stranded wire with ferrule).
• Safety: High quality workmanship and UL 486E certification ensure a safe and reliable connection.
• Effective heat dissipation: Special design minimizes the risk of overheating the connection, increasing its durability.
• Easy installation: Stable construction and Allen key screws facilitate installation and ensure secure tightening of the conductors.
• Monitoring capability: Additional space for a measuring connection allows monitoring of the connection status.
• Dust protection: Dedicated dust cover OSTB 300 provides additional protection against dirt and damage.
• Mechanical strength: Thicker housing walls prevent deformation during tightening of the conductors.

The STB 300 connector is a solution for professionals who value quality, reliability and ease of installation. It allows creating safe and durable connections in various electrical applications, meeting the requirements of modern installations.