Power Engineering / Street Lighting

BZO-04 Fuse Connector

High-class connector designed for powering lighting fixtures from overhead lines with bare conductors (AL). The design ensures full installation safety under voltage thanks to the insulation of the tightening bolt.

  • Application: Bare AL Lines
  • Line Cross-Section: 25 - 70 mm²
  • Torque: 10 Nm (shear)
  • Protection: IP 54

Why Choose BZO-04?

Zero Bolt Potential

The tightening bolt of the main contact is completely insulated from the conductive elements, allowing safe Live Working (LLW).

Assembly Stability

The well-thought-out design prevents the connector from falling apart after loosening. This is a crucial facilitation for linemen working at height.

Guaranteed Tightening Torque

The use of a shear head (10 Nm) eliminates installation errors and guarantees a perfect connection without using a torque wrench.

Technical Data

ParameterValue
Application (line type) Bare AL conductors
Line conductor cross-section 25 - 70 mm²
Branch conductor cross-section 2.5 - 4 mm²
Tightening torque (Shear head) 10 Nm
Max. current of fuse-link 16 A
Fuse-link type D II
Degree of protection IP 54
Materials Polyamide + glass fiber / Polypropylene
Compliance with standards PN-EN 50483-4:2009

Connector Design

Structural Elements:

  1. Protective cap
  2. Shear head
  3. Main conductor contact
  4. Insulating cover
  5. Branch conductor clamp
  6. Fuse-link holder
  7. Tightening bolt (insulated)
  8. Body (glass-fiber reinforced polyamide)
  9. Pressure block
  10. Rubber grommet

Assembly Instructions

  1. Unscrew the cover (4).
  2. Insert the branch conductor through the grommet (10) and connect it to the clamp (5).
  3. Screw on the cover (4).
  4. Remove the protective cap (1).
  5. Unscrew the bolt (7) so as to allow the contact (3) to be placed freely onto the bare line conductor.
  6. Holding the cover (4), place the connector onto the conductor and tighten the bolt (7) until the head shears off (2).
  7. Replace the protective cap (1).
  8. Insert the fuse-link into the holder (6) and tighten the cover.

Note: Installation should be carried out by personnel with appropriate authorizations for live working.

© 2026 SINTUR Sp. z o.o. . Designed By Jan Wiśniewski

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