Phoenix 3214663 PTTBS 1,5/S-KNX Double-Level Terminal Block White

The Phoenix 3214663 PTTBS 1,5/S-KNX double-level terminal block in white is engineered specifically for electrical installation and KNX automation systems. It provides a reliable and organized wiring solution for modern building management and industrial applications. Featuring a compact double-level architecture and intuitive push-in connection technology, this terminal block ensures secure conductor contact while optimizing space within distribution boards and control panels.

Advantages

The double-level design significantly increases wiring density within electrical enclosures, allowing more connections in a limited physical space. The advanced push-in connection technology enables fast and tool-free insertion of rigid conductors or flexible conductors with ferrules, reducing installation time. Distinct color coding tailored for KNX applications prevents wiring errors and ensures clear circuit identification. The robust construction guarantees long-term electrical and mechanical stability in demanding operational environments.

Suitable for

• KNX bus building installation and automation systems
• Electrical distribution boards and control cabinets
• Space-constrained industrial and commercial wiring projects
• Connecting solid and stranded conductors up to 1.5 mm²

When it may not be suitable

This terminal block is not designed for high-power industrial motor connections or applications requiring conductor cross-sections larger than 1.5 mm². It is specifically optimized for control, bus, and low-voltage wiring rather than heavy-duty power distribution.

Key specifications

• Double-level terminal block design
• Rated voltage: 500V
• Rated current: 16A
• Connection method: Push-in connection
• Conductor cross-section: 0.14 mm² to 1.5 mm²
• AWG range: 26 to 14
• Width: 7 mm
• Color: White
• Mounting type: NS 35/7,5 and NS 35/15 DIN rails

How to use

To install the terminal block, securely snap it onto a compatible NS 35 DIN rail within the distribution enclosure. Strip the insulation from the conductor according to the specified length, and insert solid wires or flexible wires equipped with ferrules directly into the push-in opening until fully seated. To release a conductor, actuate the integrated push button using a suitable tool. Ensure all connections are properly organized and routed before energizing the system.

What to consider before purchase

• Verify that the conductor cross-section falls within the 0.14 mm² to 1.5 mm² range
• Check the available space on the DIN rail to accommodate the 7 mm terminal width
• Confirm compatibility with standard NS 35/7,5 or NS 35/15 mounting rails
• Ensure the voltage and current ratings of 500V and 16A match your system requirements

Usage recommendations

Always disconnect power from the electrical circuit before installing or maintaining terminal blocks. Ensure that conductors are stripped correctly and inserted fully into the push-in terminals to maintain secure contact and prevent electrical faults.