Terminal block screw type STB 50-3X Al/Cu 87330 SIMBLOCK, brown/black/grey 81004022

Universal busbar connector for Al/Cu wires

This three-pole busbar connector STB 50-3X from SIMBLOCK is a solid and versatile solution for connecting aluminum and copper wires in electrical installations. Designed for both professional installers and end-users, it ensures safe and durable connections in switchboards and energy systems. Its construction allows for easy mounting on TS 35 rail or a mounting plate.

Construction and application

The STB 50-3X connector uses a screw connection, which guarantees stability and reliability of the connection. It allows connection of solid wires with a cross-section from 6 mm² to 50 mm² and stranded wires with ferrules with a cross-section from 4 mm² to 35 mm². This makes it compatible with a wide range of typical electrical installations. Rated voltage up to 1000V (AC/DC) makes it suitable for use in various environments – from home switchboards to more demanding industrial systems.

Key features and benefits

• Material versatility: The ability to connect aluminum (Al) and copper (Cu) wires eliminates the need for additional adapters or transition connectors.
• Large cross-section range: Supporting wires with a cross-section from 4 mm² to 50 mm² provides flexibility in choosing the appropriate cables for specific needs.
• Safety: Rated voltage of 1000V guarantees safe operation in various conditions.
• Easy installation: Screw connection simplifies and speeds up the installation process, minimizing the risk of errors.
• Solid construction: Ensures durability and reliability of connections for a long service life.
• Mounting on TS 35 rail: Standard mounting on TS 35 rail facilitates integration with existing switchboard systems.