Molex ML-XT Sealed Connection System

Molex introduces the new rugged ML-XT connection system with market-leading, high-performance seal technology. It is a cost-competitive solution offering superior reliability for critical vehicle-wiring applications in harsh environments.

Customers specifying low-circuit-count connectors for rugged harness applications in vehicles require a highly-reliable, securely sealed connection system to minimize electrical failures and prevent costly machinery downtime. This System is J2030 certified. It needs to withstand high temperatures and harsh environments, including exposure to chemicals, at the lowest cost. The ML-XT system meets these needs with high-performing seal technology proven to prevent ingress of fluids under extreme conditions. Advanced two-shot LSR molded one-piece plug, and rear HCR seals with cover guards guarantee optimum seal positioning at all times, including during mating and unmating of the header and receptacle. The result is a cost-competitive solution that achieves superior reliability over de-facto, industry-standard systems.


  • One-piece plug housing and seal design, permanently bonded by two-shot LSR (liquid silicone rubber) molding technology that prevents fluid ingress; system is IP68-rated (IP69K high-pressure spray validation in process). It prevents loss/misalignment of seal; ensures repeatable retention during unmating and mating of plug and receptacle.
  • Rear seals made from HCR (high consistency rubber), which provide greater tear-resistance over LSR material; prevents damage to rear seal during terminal insertion/ extraction.
  • Latched rear covers that lock in rear HCR seals and allows for flexible cable exits and cable movement while maintaining optimum seal position to prevent leak paths.
  • Plug and receptacle housings are supplied preassembled with internal HCR rear seals locked-in by rear covers, which reduce inventory, assembly time and costs for harness manufacturers and prevents loss of rear seals for a cost-competitive mated system.
  • Utilizes Molex-proven XRC™ terminals with current ratings up to 13.0A that supports tooling widely used at harness makers.
  • High terminal retention force; exceeds 111N that withstands high axial pull-out forces per J2030 specification.
  • Wedgelock/TPA (Terminal Position Assurance) loaded after terminals  that locks terminals in position for secure electrical contact.
  • 9 color-coded housings available and enables easy visual mating of harnesses to prevent mismating.



  • Aerospace and Defense - commercial and military vehicles
  • Automotive - cars and motorcycles
  • Commercial vehicle - agricultural machines
  • buses and coaches
  • construction and mining equipment
  • forest and garden equipment, generator sets (Gensets)
  • marine equipment
  • material handling
  • motorcycles
  • search, detection and navigation equipment
  • trains and rail equipment


Contact us

Heilind Electronics GmbH

Telephone: +49 8024 9021 300
Fax: +49 8024 9021 444
E-mail: vertrieb(at)