Phoenix Contact UTTB 4-PE Protective Terminal Block, 2-Level, 4mm²

The Phoenix Contact UTTB 4-PE is a high-performance 2-level protective terminal block engineered for reliable grounding and secure electrical connections in industrial environments. Featuring a 4mm² cross-section, this component is specifically designed to provide robust circuit protection and efficient grounding within control cabinets. Its compact double-deck architecture allows for high-density wiring, significantly saving space on DIN rails while maintaining organized and accessible connections for complex electrical systems.

Advantages

This terminal block offers exceptional versatility through its dual-level design, which effectively doubles the connection density compared to standard single-level blocks. The inclusion of two function shafts per level facilitates rapid potential distribution, streamlining the installation process for professional engineers. Furthermore, the unit supports large-surface labeling at every terminal point, ensuring clear identification and maintenance. The design is also compatible with vertical bridging options, allowing for flexible circuit configurations and reliable performance in demanding railway applications.

Suitable for

• Industrial control cabinet wiring
• Grounding applications in electrical distribution systems
• High-density electrical installations
• Railway and transportation infrastructure projects
• Complex control systems requiring space-optimized components

When it may not be suitable

This terminal block is designed specifically for grounding and protective functions and is not intended for standard power distribution where isolation or switching is required. It may not be suitable for environments exceeding the specified cross-section capacity or for applications requiring non-standard mounting rails.

Key specifications

• Connection method: Screw connection
• Cross-section capacity: 0.14 mm² to 6 mm²
• AWG range: 26 to 10
• Width: 6.2 mm
• Color: Green-yellow
• Mounting compatibility: NS 35/7,5 and NS 35/15 DIN rails

How to use

To install the UTTB 4-PE, snap the terminal block onto a standard NS 35 DIN rail. Insert your conductors into the screw terminals, ensuring they are stripped to the appropriate length and tightened to the manufacturer's specified torque. For potential distribution, utilize the function shafts or the optional vertical bridge to connect levels as needed. Always ensure that the green-yellow housing is properly grounded to the mounting rail to maintain protective continuity.

What to consider before purchase

• Verify that the 6.2 mm width fits your current terminal strip layout
• Ensure your wire gauge falls within the 0.14 mm² to 6 mm² range
• Confirm that your DIN rail type is compatible with the NS 35 standard
• Check if additional accessories like vertical bridges are required for your specific circuit design

Usage recommendations

For optimal safety and performance, always use calibrated tools for screw tightening and ensure that the terminal block is securely locked onto the DIN rail before applying power. Regularly inspect connections in high-vibration environments to maintain long-term reliability.