Threaded busbar connector SIMBLOCK STB 50 - Al/Cu, 87310, grey 81001002

SIMBLOCK STB Threaded Busbar Connectors – Reliable Al/Cu Connections

The SIMBLOCK STB 50 threaded busbar connector is designed for connecting aluminum and copper conductors on TS 35 rails or mounting plates. The connector's construction, combined with the use of high-quality materials, ensures a stable and safe electrical connection, minimizing the risk of overheating and failure. This is an ideal solution for both professional installers and end-users who value durability and reliability.

Construction and application

The STB 50 connector is characterized by a unique core design and special ribbing of the body, which effectively dissipates heat to the outside. This keeps the connection stable even under high current loads. The ability to connect conductors with a cross-section from 6 mm² to 50 mm² (solid) and from 4 mm² to 35 mm² (stranded with ferrule) makes the connector versatile in application. Applications include electrical installations, distribution boards, control cabinets, and connections of aluminum and copper conductors, to name a few.

Key features and benefits

• Versatility: Ability to connect aluminum and copper conductors – eliminates the need for additional adapters.
• High permissible current value: Rated current up to 150A for Cu and Al conductors ensures safe operation even in demanding conditions.
• Effective heat dissipation: Special core design and body ribbing prevent overheating of the connection.
• Mechanical stability: Thick housing walls provide resistance to deformation during tightening of conductors and stability on the TS 35 rail.
• Safety: UL486E certification confirms a high standard of safety for Al/Cu connections.
• Easy installation: Hex key screws with a fine thread allow for precise tightening of conductors.
• Clear identification: The colors of the housing cover correspond to the colors of the connected conductors, making it easier to identify phases.
• Possibility of using measuring connectors: In some models (from 95 mm² upwards) there is space for a measuring connector, allowing control of the connection status.

Using SIMBLOCK STB connectors guarantees a durable, safe and reliable electrical connection that meets the highest quality standards.