Here’s a clear breakdown of the 4510021U cable—also known as the Lapp ÖLFLEX® UNIPLUS 1X0.5 BU—in easy-to-scan points:

 Technical Specifications

• Type: Single core flexible copper cable
• Conductor size: 0.5 mm
• Conductor material: Bare copper, fine-wired (Class 5 per IEC 60228)
• Insulation: PVC FR (Flame Retardant)
• Color: Blue
• Outer diameter: Approx. 2.2 mm
• Voltage rating: Up to 1100V (IS 694:2010)
• Test voltage: 3 kV
• Weight: ~11 kg/km
• Copper index: 4.8 kg/km

 Safety & Compliance

• Flame-retardant: Yes, per IEC 60332-1 and IS 10810-53
• ISI marked: Complies with Indian standards
• CE marked: European conformity
• RoHS compliant: Free from hazardous substances

 Applications

• Ideal for fixed installations in:
  • Lamps and lighting systems
  • Switchgear cabinets
  • Distribution boxes
  • Closed installation ducts
• Suitable for dry rooms and protected environments

 Environmental Tolerance

• Operating temperature:
  • Fixed: –40°C to +80°C
  • Occasionally moved: –15°C to +70°C
• Minimum bending radius:
  • Fixed: 13.2 mm
  • Flexing: 17.6 mm