DIN rail connector threaded SIMBLOCK STB 300-2 - Al/Cu, 87920, blue 81302003

SIMBLOCK STB 300-2 Threaded Busbar Connectors – Reliable Al/Cu Connections

SIMBLOCK STB 300-2 threaded busbar connector is designed for connecting aluminum and copper conductors on busbars, providing a safe and durable connection in electrical installations. The connector's design prioritizes easy installation and high reliability, appreciated by both professional installers and end-users. Made of high-quality materials, it guarantees connection stability even under heavy loads.

Construction and Application

The STB 300-2 connector allows connection of conductors with a cross-section from 6 mm² to 300 mm² (solid wire) and from 4 mm² to 240 mm² (stranded wire with ferrule). It has one pole and is designed for mounting on TS 35 rail or a mounting plate. Additional space for a measuring connection allows convenient access to the measurement point without disconnecting the connection. The use of a special OSTB 300 dust protection sleeve further protects the connection from dirt and ensures its long-term efficiency.

• Versatility: The ability to connect aluminum and copper conductors in one connector eliminates the need for additional connecting elements.
• Safety: UL486E certification confirms a high safety standard for Al/Cu connections.
• Durability: Thick connector body walls prevent deformation during tightening of conductors, and hex key screws with a fine thread provide a strong and stable connection.
• Convenient installation: The color scheme of the body cover facilitates identification of connected conductors, and the ability to mount on TS 35 rail or a mounting plate increases installation flexibility.
• Quality control: Access to the measuring connection facilitates monitoring the connection status and quick detection of any problems.

The SIMBLOCK STB 300-2 is characterized by high technical parameters that guarantee its reliable operation in various working conditions: rated voltage 1000 AC/DC, rated current for Cu is 520 A, allows connection of solid wires with a cross-section from 150 to 300 mm² (4 conductors) and stranded wires with a ferrule with a cross-section from 120 to 240 mm² (4 conductors). It also has a measuring connection for solid wires with a cross-section from 1.5 to 10 mm² (2 conductors) and stranded wires with a ferrule with a cross-section from 1.5 to 6 mm² (2 conductors). It is a single-pole element designed for mounting on TS 35 rail or a mounting plate.

Thanks to this, the connector finds application in electrical switchboards, control cabinets, machine construction, and photovoltaic installations. It is an ideal solution for demanding applications where reliability, safety, and ease of installation are paramount.