E Series

LEMO E Series – Sealed High-Reliability Connectors for Harsh & Outdoor Environments

The LEMO E Series delivers rugged, high-reliability circular interconnect solutions engineered for outdoor, industrial and harsh-environment applications where environmental protection and consistent performance are critical.

Designed for long-term use in exposed conditions, the E Series provides dependable connectivity across field equipment, infrastructure systems and demanding operational environments.

 Engineered for Harsh Outdoor Conditions

The E Series is built to maintain performance in environments where exposure to dust,
moisture and contamination is unavoidable:

  • Multi-layer sealing system with inner sleeve and dual seals
  • IP68 sealing when mated (submersible conditions) and IP66 when unmated
  • Effective protection against dust, dirt and moisture ingress
  • Reliable performance in exposed and outdoor applications

This ensures system reliability and uptime in challenging environments, where
protection is essential.

Reliable Connectivity in Demanding Environments

Designed for durability and long-term use, the E Series supports consistent operation across industrial and field applications:

  • Resistance to vibration, shock and mechanical stress
  • Stable performance in mobile and outdoor systems
  • Reduced maintenance in harsh operating conditions
  • Proven performance across industrial and technical applications

The result is dependable connectivity in environments where failure is not acceptable.

 
 

Flexible Configuration for Complex Systems

The E Series provides a highly versatile platform to meet diverse design requirements:

  • Unipole and multipole configurations (up to 106 contacts)
  • Coaxial and triaxial options (50O and 75O)
  • High-voltage contact capability
  • Mixed contact layouts combining signal, power and RF
  • Wide cable compatibility (1 to 30 mm outer diameter)

This flexibility allows engineers to design fully customised interconnect solutions
for complex systems and varied applications.

 

Optimised for Industrial, Outdoor & Technical Applications

The E Series is ideally suited to:

  • Outdoor and exposed equipment installations
  • Industrial systems operating in harsh conditions
  • Field-deployed infrastructure and control systems
  • Broadcast, instrumentation and technical equipment
  • Protected defence and security applications

Why Choose the LEMO E Series?

Because it combines environmental sealing, flexibility and proven reliability — making it a trusted solution for:

  • Harsh outdoor and industrial environments
  • Systems requiring watertight protection
  • Complex, multi-signal interconnect designs
  • High-reliability field applications

Download the E Series Catalogue

Access full specifications, configurations and technical data to support your design and application requirements.