SIMBLOCK STB 50 threaded busbar connector - Al/Cu, 87310, green 81001005

Rail terminal with screw connection for Al/Cu connections

This SIMBLOCK STB 50 rail terminal, in green color, is a reliable solution for connecting aluminum and copper wires. Designed by SIMET, a leading Polish manufacturer of electrical equipment with a 50-year tradition, it guarantees durable and safe connections in various applications – from construction to industrial automation and renewable energy installations. Its construction allows for effective use in electrical switchboards and device connections.

Universal application and parameters

The STB 50 terminal allows connection of wires with a cross-section from 6 mm² to 50 mm² (solid) and from 4 mm² to 35 mm² (stranded with ferrule). The rated voltage is 1000 V AC/DC, and the rated current for aluminum and copper wires is 150 A. This makes it suitable for circuits requiring high current throughput. Mounting is done on TS 35 rail or mounting plate, providing installation flexibility. The single-pole construction simplifies circuit configuration.

Construction and benefits for installers and users

The unique construction of the SIMBLOCK STB 50 terminal improves heat dissipation, preventing its accumulation during operation. Thicker housing walls provide stability on the TS 35 rail and resistance to deformation during tightening of the wires. Allen key screws with a fine thread increase the clamping force, guaranteeing a secure connection. The green color makes it easier to identify wires in the installation. Additionally, the shape of the housing protects the installer's hands during work. The terminal has a UL 486E certificate confirming a high safety standard for Al/Cu connections. Thanks to this, both installers and end-users can count on trouble-free operation of the electrical system for a long time.