Phoenix Contact3031160 STTB 1.5 BU Series Feed Through Terminal Block, 0.08 → 1.5mm², Double-Level, Spring Clamp

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.

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 feed-through terminal block facilitates efficient connection and distribution of electrical signals in various industrial environments. Featuring a double-level design that supports a range of conductor sizes, it is an essential component for professionals in automation and electronics.

• Spring cage termination provides secure, tool-free connections
• Rated for 500V and 17.5A, suitable for diverse applications
• Compatible with 28 to 16 AWG conductors for extensive connectivity
• ATEX certification makes it suitable for hazardous environments

• Utilised in railway systems where dependable signal transmission is essential
• Ideal for plant engineering, enabling seamless circuit connections
• Commonly found in the process industry for effective signal routing
• Suitable for electrical panels, promoting space-efficient interconnection
• Employed in machine building, where performance in connections is critical

It supports both flexible and rigid conductors ranging from 0.08mm² to 1.5mm².

It can be mounted on NS35/7.5 and NS35/15 rail systems.

Each level accommodates two connections, facilitating efficient circuit management.