Terminal rail connector threaded SIMBLOCK STB 50-2 - Al/Cu, 87320, green 81002005

SIMBLOCK Busbar Connectors and Distribution Blocks – Reliable Al/Cu Connections

SIMBLOCK STB busbar connectors are a modern solution for connecting aluminum and copper wires, appreciated by installers and end-users for their safety, durability, and ease of installation. The STB series, manufactured by SIMET S.A., is widely used in construction, industry, automation, and renewable energy installations. They ensure secure and long-lasting connections, minimizing the risk of failures and downtime.

Design and Application

The STB 50-2 connector is designed to work with wires up to 50 mm² (solid) and 35 mm² (stranded with ferrule). Its unique design with an aluminum clamping element allows for safe connection of both aluminum and copper wires – without the risk of galvanic corrosion. The specially ribbed body effectively dissipates heat, which translates to connection stability even under heavy load. The connector is designed for mounting on TS 35 rail or a mounting plate, providing installation flexibility. Rated voltage up to 1000 V AC/DC and rated current of 150 A guarantee a wide range of applications in various electrical installations.

Advantages and Benefits

• Versatility: The ability to connect aluminum and copper wires in one connector eliminates the need for additional adapters and simplifies installation.
• Safety: The connector design protects against accidental contact with live parts, and UL486E certificates confirm a high safety standard.
• Durability: Made of high-quality materials and precise workmanship ensure long-term connection reliability.
• Easy Installation: Hex key screws with a fine thread allow for quick and secure wire mounting, and the cover color coding facilitates phase identification.
• Heat Dissipation: Ribbing of the body provides effective heat dissipation, which increases connection stability under heavy load.
• Expandability: Compatibility with the Pm-85 ring and the availability of accessories (e.g., dust covers) allow you to adapt the connector to individual installation needs.
• Measurement Connection: STB models ≥95 mm2 have an additional measurement connection to facilitate monitoring of the installation status without having to disconnect it.

Thanks to these features, the SIMBLOCK STB 50-2 connector is an ideal choice for both professional installers looking for reliable and easy-to-install solutions, and for end-users who value the safety and durability of their electrical installation.