Screw terminal rail connector STB 300-2 Al/Cu 87920 SIMBLOCK, brown 81302015

Busbar connectors – reliable connections in electrical installations

The STB 300-2 Al/Cu threaded busbar connector is a component designed for connecting aluminum and copper wires in electrical installations. The connector's design ensures a secure and durable connection, minimizing the risk of failure and energy loss. It is a solution appreciated by both professional installers and end-users due to its ease of installation and high reliability.

Construction and application

The STB 300-2 connector has been designed for a wide range of wire cross-sections. It allows connection of wires with a cross-section from 6 mm² to 300 mm² (solid) and from 4 mm² to 240 mm² (stranded with ferrule). Additional space for a measuring connection allows convenient monitoring of the connection status and the entire installation. The connector is designed for mounting on TS 35 rail and mounting plate, providing flexibility in choosing the installation location.

The application of SIMBLOCK connectors includes construction, machine building, automation of production processes, electrical switchboards and devices generating electricity from renewable sources. This makes the product useful in various electrical projects – from simple home installations to advanced industrial systems.

Advantages and benefits

• Versatility: The ability to connect aluminum and copper wires eliminates the need for additional adapters or transition connectors.

• Safety: High quality workmanship and certificates (FI, VDE, CE, RoHS, REACH) guarantee safe operation.

• Durability: The special shape of the core and the ribbing of the housing ensure effective heat dissipation, which translates into a longer connection life. Thick housing walls prevent deformation during wire tightening.

• Convenient installation: Allen screws with a fine thread allow precise tightening of the wires, and a dust cover (OSTB) facilitates access to the measuring connection and protects against dirt.

• Quality control: Additional space for a measuring connection allows ongoing monitoring of the connection status and the entire electrical installation.

• Installer protection: The shape of the housing protects the installer's hands during work.

• Wide range of applications: The connector works in various industries and in various types of installations – from domestic to industrial.

Thanks to the use of SIMBLOCK connectors, the quality and safety of electrical installations can be significantly improved, as well as reducing installation and maintenance time.