Weidmüller ZDU 4 BL Feed-Through Terminal Block with Tension Clamp Connection, Blue, 4 mm² Max Cable Section

The Weidmüller ZDU 4 BL Feed-Through Terminal Block with Tension Clamp Connection is an efficient electrical component designed for professional wiring tasks. Featuring a secure tension clamp connection, this blue feed-through terminal is built to handle a maximum cable section of 4 mm², ensuring reliable electrical contact and stable signal transmission in demanding environments. Supplied in a practical pack of 100 pieces, it provides a consistent solution for large-scale wiring projects in industrial settings and electrical distribution systems.

Advantages

This terminal block utilizes an advanced tension clamp connection mechanism that significantly reduces wiring time while maintaining high resistance to vibrations and mechanical stress. The blue color aids in clear visual identification and circuit organization within complex control panels, helping technicians maintain proper phase or neutral segregation. Its compact profile optimizes rail space usage without compromising structural integrity or electrical performance, making it a reliable choice for high-density installations.

Suitable for

• Industrial control cabinets and automation panels
• Electrical power distribution systems
• Professional electrical installation and panel building
• Organized signal and power line management

When it may not be suitable

This terminal block is not designed for cables exceeding a maximum cross-section of 4 mm², making it unsuitable for heavy-duty power applications requiring thicker conductors. Additionally, it lacks specialized environmental protection ratings, meaning it should not be exposed to moisture or direct outdoor conditions without being housed in an appropriate sealed enclosure.

Key specifications

• Product type: Feed-through terminal block
• Connection type: Tension clamp connection
• Product color: Blue
• Maximum cable section: 4 mm²
• Height: 62 mm
• Weight: 11.5 g per unit
• Pack quantity: 100 pieces

How to use

To use the Weidmüller ZDU 4 BL terminal block, mount it securely onto a standard mounting rail inside an appropriate electrical enclosure. Prepare the wire by stripping the insulation to the recommended length to expose the conductor. Insert the stripped wire directly into the tension clamp connection point until it is securely gripped by the spring mechanism. Ensure the connection is firm and properly seated before energizing the circuit. To release the wire, insert a suitable operating tool into the actuation slot to open the clamp.

What to consider before purchase

• Verify that your cable cross-section does not exceed the maximum limit of 4 mm²
• Ensure compatibility with standard mounting rails used in your enclosure
• Check the required quantity for your project to confirm that the 100-piece pack meets your needs
• Confirm that the blue color aligns with your system's wire color-coding standards

Usage recommendations

Always disconnect the power supply before installing or maintaining electrical terminal blocks. Ensure that wire stripping lengths and insertion depths comply with manufacturer recommendations to maintain a secure and safe electrical connection.