Threaded busbar connector SIMBLOCK STB 300-2 - Al/Cu, 87920, grey 81302002

Rail terminal connectors threaded SIMBLOCK STB 300-2 – reliable Al/Cu connections

The SIMBLOCK STB 300-2 threaded rail connector is an element designed for connecting aluminum and copper wires, providing a safe and durable connection in electrical installations. The connector's design is intended for easy installation and high reliability, which will be appreciated by both professional installers and end users. The use of high-quality materials guarantees connection stability even under high loads.

Construction and application

The STB 300-2 connector 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). It has a space for an additional measuring connection, which facilitates monitoring the connection status and installation monitoring. Therefore, it is suitable for electrical switchboards, machine building, industrial automation and installations using renewable energy sources. Installation is carried out on a standard TS 35 rail or mounting plate. The connector is designed to operate with a rated voltage of up to 1000 V AC/DC and a rated current of up to 520 A for copper wires.

Advantages and benefits

• Versatility: The ability to connect aluminum and copper wires eliminates the need for additional adapters.
• Safety: UL486E certification confirms a high safety standard for Al/Cu connections.
• Durability: Thick housing walls prevent deformation during tightening of the wires, ensuring a stable connection for years.
• Convenient installation: Allen screws with a fine thread increase the clamping force and facilitate installation.
• Connection status monitoring: An additional space for a measuring connection allows monitoring the connection status of the wires.
• Dust protection: Dedicated dust cover OSTB 300 enables easy access to the measuring connection while protecting it from dirt.
• Clear markings: The colors of the housing cover correspond to the colors of the connected wires, making it easier to identify phases and neutrals.
• Thermal resistance: The unique shape of the core and the ribbing of the housing ensure efficient heat dissipation, preventing overheating of the connection.

The SIMBLOCK STB 300-2 connector is an investment in a safe and reliable electrical installation that will meet the expectations of even the most demanding users.