• Multi-conductor battery wire harness featuring an RS4-K12TY-AH-A plug for automotive control units.
  • Industrial RS4-K12TY-AH-A 12-pin connector plug with blue weather seal for custom battery wire harness.
  • Close-up of 12-pole sealed connector interface on a high-reliability industrial cable assembly.
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RS4-K12TY-AH-A 12-Pin Plug - Custom Battery Wire Harness & Cable Assembly

  • High-Density Signal Integration: Features a 12-pin RS4-K12TY-AH-A series connector plug, optimized for complex multi-channel power and data telemetry in advanced battery management systems (BMS).
  • IP-Rated Environmental Sealing: Engineered with a high-visibility blue weather-sealed gasket and robust housing to ensure ingress protection against moisture and particulates in rugged industrial environments.
  • Superior Signal Integrity: Constructed with automotive-grade conductors and high-flexibility shielding to minimize electromagnetic interference (EMI) and maintain stable communication between control modules.
  • Precision OEM Manufacturing: Designed to meet rigorous industrial standards for vibration resistance and thermal stability, providing a reliable interconnect solution for EVs, robotics, and energy storage systems.
  • Labled Termination Points: Utilizes precision-crimped terminals and heat-shrink identification sleeves to streamline integration into complex electrical architectures and facilitate rapid maintenance.
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We specialize in custom sourcing and manufacturing. Upload your spec sheet or drawing, and our engineering team will provide a quote within 24 hours.

Manufacturing of unlisted custom assemblies
Support for complex cable & wire harness assemblies
Rapid prototyping for new designs
Equivalent alternatives for obsolete parts
Same-day engineering review
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We reply within 24 hours. No account needed. Your specifications stay confidential; NDA available on request.

What information do you need to provide a quote for a custom wire harness?

To provide an accurate quote and lead time, please provide:

  1. Technical Drawing or Diagram: Showing pinouts, lengths, and tolerances.
  2. Bill of Materials (BOM): Listing specific connectors (MPN) and wire gauges (AWG).
  3. Estimated Annual Usage (EAU): Helping us optimize pricing for your volume. Note: If you do not have a formal drawing, our engineering team can help create one based on your physical sample.
Can you suggest cost-saving alternatives for expensive connectors (e.g., TE, Molex, JST)?

Yes. We offer variety of alternative components.

We have extensive supply chain relationships in Taiwan and can suggest"Functionally Equivalent"alternatives that are fully compatible with major brands like TE, Molex, or JST but at a significantly lower cost. We will provide datasheets and samples of the alternative components for your approval before production.

How do you ensure quality control for custom cable assemblies?

Every single cable assembly undergoes rigorous testing before leaving our Taiwan facility. Our standard QC process includes:

  • 100% Continuity Testing: Ensuring no opens, shorts, or miswires.
  • Pull Force Testing: Verifying crimp strength.
  • Visual Inspection: Checking for cosmetic defects and label accuracy.
  • Hi-Pot Testing: Available upon request for high-voltage applications to ensure insulation integrity.