Terminal distribution block Simet SCB 25-5X (81500020) Al/Cu branch connector, 5 outputs

Simet SCB 25-5X is a distribution/branch terminal block designed for Al/Cu conductors that splits a single supply into five outputs. It provides a compact solution for creating multiple branch circuits from one incoming conductor while allowing direct connection of both aluminium and copper cables. The block is intended for fixed electrical installations and supports secure conductor clamping and reliable electrical continuity in residential and commercial wiring.

Advantages

The design allows mixed aluminium and copper conductor connections without the need for separate adaptors, reducing installation time and potential connection errors. Its multi-output layout consolidates wiring, saves space in distribution enclosures, and simplifies circuit branching. Robust clamping ensures stable mechanical and electrical contact over time, and the unit is built to meet common installation practice requirements for durability and safety.

Suitable for

• Splitting a single incoming Al or Cu supply into up to five branch circuits
• Residential electrical distribution panels and meter cupboards
• Commercial installations where mixed Al/Cu conductors are used
• Retrofit or extension work that requires combining new copper runs with existing aluminium wiring

When it may not be suitable

This terminal block is intended for fixed installations and is not designed for frequent disconnection or use in movable equipment. It is not a protective device and does not provide overcurrent protection or isolation by itself; separate circuit protection and appropriate isolation switches are required elsewhere in the system. For conductors or applications that require special environmental protection (for example, outdoor exposure without an enclosure or corrosive atmospheres), additional protective measures or a different product may be necessary.

Key specifications

• Type: distribution/branch terminal block for aluminium and copper conductors
• Number of outputs: 5
• Function: split one incoming conductor into five outgoing conductors
• Mounting: suitable for fixed electrical installation and mounting inside distribution enclosures
• Connection method: mechanical clamping for secure conductor contact
• Typical applications: residential and commercial electrical wiring where mixed Al/Cu connections are required

How to use

Install the terminal block inside an appropriate distribution enclosure or mounting rail according to local electrical codes. Strip insulation from the incoming and outgoing conductors to the recommended length, insert conductors into the respective clamping points and tighten the screws evenly to achieve secure contact without over-torquing. Verify mechanical stability and continuity with suitable testing equipment before energizing the circuit. Ensure that the block and surrounding wiring are protected by the correct upstream overcurrent devices and that all connections are tightened again after initial thermal cycling if required by installation practices.

What to consider before purchase

• Confirm compatibility with the conductor types and cross-sections used in your installation (aluminium and copper)
• Check that the number of outputs (five) meets your branching requirements
• Ensure the block fits your intended enclosure or mounting method
• Verify that you will provide appropriate circuit protection and isolation elsewhere in the system

Usage recommendations

Use the Simet SCB 25-5X for fixed, indoor wiring inside distribution panels or enclosures. Always follow local wiring regulations when connecting aluminium conductors, apply anti-oxidation treatment if recommended by standards for aluminium connections, and use the correct torque values for clamping screws. Periodically inspect connections as part of routine electrical maintenance.