Model: SSWS

Solder Sleeve Wire Splices (SSWS)

Solder Sleeve Wire Splices (SSWS) feature an innovative one-piece design combining a transparent heat shrinkable sleeve with a pre-installed solder ring and dual adhesive seals. This all-in-one solution provides electrical connection, insulation, strain relief, and waterproof protection in a single heating step. The transparent sleeve allows for easy visual inspection of the solder joint, making it ideal for automotive, marine, and telecommunications applications.

Key Features & Benefits

  • All-in-One Design: Combines soldering, insulation, and sealing in a single operation, significantly reducing installation time and labor costs.
  • Visual Inspection: The transparent heat shrink sleeve allows technicians to easily verify the quality of the solder joint and wire insertion before and after heating.
  • Waterproof & Durable: Dual adhesive rings at both ends create a secure, waterproof seal (IP67) against moisture, corrosion, and environmental contaminants.
  • Pre-Fluxed Solder Ring: Eliminates the need for external flux or soldering irons, ensuring a clean and consistent connection every time.
  • Color-Coded Sizes: Different colors (White, Red, Blue, Yellow) correspond to different wire gauges for easy identification and selection.
  • Low Temperature Soldering: The solder ring melts at approximately 179°C, preventing heat damage to sensitive wire insulation.

Common Applications

  • Automotive wiring harnesses and electrical repairs
  • Marine and boat wiring systems
  • Telecommunications and data cable connections
  • Aerospace and military wire splicing
  • Industrial equipment and machinery wiring
  • DIY electronics and electrical projects

Product Specifications & Technical Data

  • Model Series: SSWS (Solder Sleeve Wire Splice)
  • Operating Temperature: -55°C to +125°C
  • Solder Melt Temperature: 179°C (355°F)
  • Shrink Temperature: Starts at 80°C
  • Protection Rating: IP67
  • Dielectric Strength: ≥25 kV/mm
  • Volume Resistance: >10¹⁴ Ω·cm

Technical Properties

Test Item Test Method Value
Operating Temperature ASTM D 2671 -55°C to +125°C
Tensile Strength ASTM D 2671 ≥14 MPa
Shrinking Temperature ASTM D 2671 Starts at 80°C
Radial Shrinking Ratio ASTM D 2671 ≥50%
Rated Volume ASTM D 2671 600V
Dielectric Strength ASTM D 149 ≥25 kV/mm
Volume Resistance ASTM D 257 >1014 Ω·cm
Longitudinal Shrinkage ASTM D 2671 <8%

Dimensions & Specifications

Model Color Before Shrinking (mm) After Shrinking (mm) Solder Ring Length (L)
ID (a) Thickness (b) ID Thickness ID (c) Thickness (d) Length (e)
SSWS-1 White 2.0±0.1 0.30±0.05 1.1±0.1 0.50±0.05 1.8±0.1 0.3±0.05 1.6±0.1 25±0.5
SSWS-2 Red 3.2±0.2 0.38±0.05 1.5±0.1 0.55±0.05 2.9±0.1 0.45±0.05 3.0±0.1 40±0.5
SSWS-3 Blue 5.0±0.2 0.40±0.05 2.6±0.1 0.78±0.05 4.6±0.1 0.48±0.05 4.2±0.1 40±0.5
SSWS-4 Yellow 6.5±0.2 0.40±0.05 3.0±0.1 0.80±0.05 6.2±0.1 0.5±0.05 4.3±0.1 40±0.5

Technical Drawing

SSWS Technical Drawing

Frequently Asked Questions (FAQ)

Q: Do I need to use a soldering iron or additional solder with these splices?
A: No. The SSWS features a pre-fluxed solder ring inside the sleeve. You only need to apply heat (using a heat gun) to the center of the sleeve. The solder will melt and flow into the wire strands automatically, creating a secure connection without the need for external tools or materials.

Q: How do I know if the wires are inserted correctly?
A: The sleeve is made of transparent heat shrink material. This allows for a clear visual inspection of the wire insertion depth and the solder joint quality before and after the heating process, ensuring a reliable connection every time.

Q: Are these splices waterproof?
A: Yes. The SSWS includes dual adhesive rings at both ends of the sleeve. When heated, the adhesive melts and flows to seal the wire entry points, providing an IP67 waterproof rating that protects against moisture, dust, and corrosion.

Q: What is the recommended heating method?
A: Use a heat gun set to approximately 180°C – 200°C. Start heating from the center of the solder ring and move outward toward the ends. This ensures the solder melts and flows first, followed by the adhesive sealing the ends, and finally the sleeve shrinking tightly over the wires.

Q: Can I use these for high-voltage applications?
A: These splices are rated for 600V (with a dielectric strength of ≥25 kV/mm). For high-voltage busbar insulation or applications exceeding 600V, please consider our Heat Shrink Wire Connectors category for alternative solutions.

Q: What’s the difference between SSWS and other wire connectors?
A: SSWS combines soldering and sealing in one step, providing the strongest electrical connection. For applications that don’t require soldering, you might consider our DuraSeal Heat Shrinkable Butt Splice or DuraSeal Heat Shrink Solder Splices, which offer crimp-style connections with heat shrink protection.

Q: What wire gauges do these splices support?
A: Each color corresponds to different wire gauges:
– White (SSWS-1): 22-18 AWG
– Red (SSWS-2): 16-14 AWG
– Blue (SSWS-3): 12-10 AWG
– Yellow (SSWS-4): 8-6 AWG
Choose the appropriate size based on your wire gauge for optimal performance.