Phoenix Contact PT 4 BU Feed-Through Terminal Block, 0.2-4 mm², Light Blue

The Phoenix Contact PT 4 BU is a professional-grade 2-conductor feed-through terminal block engineered for reliable wire termination in industrial control cabinets and electrical distribution systems. Featuring the advanced Push-in connection technology, this terminal block allows for quick and tool-free conductor insertion, significantly reducing installation time. Its compact design is optimized for high-density wiring environments, ensuring efficient use of space within control panels while maintaining robust electrical connectivity for conductors ranging from 0.2 mm² to 4 mm².

Advantages

The primary benefit of this terminal block is its high-performance Push-in connection system, which provides a vibration-resistant and gas-tight contact that remains stable over time. The light blue color coding facilitates clear circuit identification, which is essential for complex electrical installations. Furthermore, the robust housing material ensures durability in demanding industrial conditions, while the integrated test points allow for convenient voltage and current measurements without disconnecting the wiring.

Suitable for

• Industrial automation control cabinets
• Electrical distribution panels
• Building management systems
• Machine building and manufacturing equipment

This terminal block may not be suitable for applications involving conductors larger than 4 mm² or for environments requiring specialized hazardous area protection beyond standard industrial ratings. It is also not intended for direct outdoor exposure without a protective enclosure.

Key specifications

• Connection type: Push-in
• Number of connections: 2
• Conductor cross-section range: 0.2 mm² to 4 mm²
• Color: Light blue
• Mounting type: DIN rail

To use the terminal block, mount it securely onto a standard DIN rail. Strip the insulation from your conductor to the recommended length and insert the wire directly into the terminal point until it is fully seated. For stranded wires without ferrules, use a screwdriver to actuate the push-button release mechanism if necessary. Ensure the connection is firm by giving the wire a gentle pull.

What to consider before purchase

• Verify that your conductor cross-section falls within the 0.2 mm² to 4 mm² range.
• Ensure your DIN rail system is compatible with standard terminal block mounting.
• Confirm the color coding requirements for your specific circuit design.

For optimal performance and safety, always ensure that conductors are stripped to the correct length and that the terminal block is fully snapped onto the DIN rail before applying power. Regularly inspect connections in high-vibration environments to maintain system integrity.