Phoenix Contact D-STTB Series End Cover for Use with DIN Rail Terminal Blocks

From Phoenix Contact, the STTB double-level, spring-cage terminal blocks are great DIN rail mounted terminal blocks that boast a compact design, dual-layers and mount onto popular DIN rails. These DIN rail terminals are spring-cage connection technology and that allows for an effortless install thanks to you only having to strip wire and push-in your conductor. The terminal block access an AWG of 28-16 and they can be mounted onto NS 35/7.5 or NS 35/15 DIN rails for maximum flexibility and applications.

These terminal blocks come in a grey colour and housings are made from a polyamide material. Contacts on this device are plated copper. The STTB range is also backed by an ATEX EX rating that means it has a certification to be installed in potentially explosive areas.

Potentials on two levels to halve space requirement compared with single-level clamps

The STTB range can be used in the below, but are not subjected to:

• Railway industry (Tried and tested)


• Plant engineering


• Machine building


• Process industries

Terminal blocks are simple to wire. Wiring depends on what type of terminal block you have. These specific terminal blocks are spring-cage terminal blocks. To wire spring cage terminal blocks you can either use a strong non-flexible cable or use a cable with a ferrule on. Simply strip your cable and clamp a ferrule if you're using one, insert a screwdriver into the actuation shaft to open the terminal point, push your conductor in and remove your screwdriver. Ensure your conductor is pushed in as far as it can go.

The STTB series is apart of Phoenix Contacts vast and comprehensive portfolio. Complete line is a solution from Phoenix Contact that gives you a full range of products that all go hand-in-hand to make a perfect control cabinet. It covers all bases from connections, switching and measuring all the way to controlling, supplying and automation. Choosing complete line products makes it far more efficient to get a cabinet working.

UL; CUL; CSA

This end cover offers a key finishing touch for DIN rail terminal blocks. It enhances the functionality and safety of electrical installations by securely enclosing the terminals to prevent accidental contact. Its sturdy construction supports the overall efficiency and dependability of electrical systems, making it an essential accessory for professionals in the automation and electronics fields.

• Durable PA material provides longevity and resistance to wear
• Grey colour suits a range of Applications
• Specifically designed for standard DIN rail terminal blocks
• Simple installation process for efficient assembly
• Prevents accidental contact with live electrical connections

• Terminates open ends of DIN rail terminal blocks
• Suitable for electrical enclosures and junction boxes
• Ideal for use in commercial and industrial automation setups
• Helps maintain component integrity within electrical panels

Installation is straightforward

It is designed for standard DIN rail terminal blocks

While it is made from durable materials, it is best to consider additional environmental factors if used outdoors.