Screw terminal rail connector STB 185-2 Al/Cu 87820 SIMBLOCK, brown 81202015

Universal busbar connector for aluminum and copper wires

The STB 185-2 SIMBLOCK busbar connector is a solid and reliable solution for connecting aluminum and copper wires in electrical installations. Designed for mounting on TS 35 rail or a mounting plate, it provides a safe and durable connection, meeting the requirements of both professional installers and end-users. The connector's design allows for connection of both solid and stranded wires with ferrules.

Construction and application

The STB 185-2 connector is characterized by a screw connection method, which ensures a reliable electrical contact and minimizes the risk of loosening the connection during operation. Additional space for a measuring connection facilitates control of the installation parameters. The connector is made of high-quality materials, guaranteeing its long-term operation even in harsh conditions. A dedicated OSTB 185 dust cover (available separately) provides easy access to the measuring connection during maintenance or diagnostics.

• Purpose: Connecting aluminum and copper wires in distribution boards, connection boxes and other elements of electrical installation.
• Mounting: Quick and easy mounting on TS 35 rail or mounting plate – saving time during installation.
• Versatility: Possibility of connecting solid and stranded wires of various cross-sections – flexibility in choosing the appropriate wires.
• Safety: Secure screw connection minimizes the risk of loosening connections – increased safety of use.
• Additional functions: Built-in space for a measuring connection facilitates control of installation parameters – simplified diagnostics.

Operating parameters and specifications

The STB 185-2 connector is designed to operate in circuits with a rated voltage of up to 1000 V AC/DC and a rated current of up to 353 A for copper wires. It accepts solid wire cross-sections from 95 mm² to 185 mm² and stranded wires with ferrules from 70 mm² to 150 mm². The measuring connection allows for connection of wires with a cross-section of 1.5 mm² to 10 mm² (solid) or 1.5 mm² to 6 mm² (stranded with ferrule). Its compact size (length 105 mm, height 73.5 mm) allows for mounting even in tight spaces. It is made of high-quality PA plastic providing electrical insulation.