SurLok Plus Series

Connector Solutions

The SurLok Plus™ compression lug is a field installable, high reliable alternative to common compression lugs. Using industry standard crimp, screw, and busbar termination options, thus eliminating the need to purchase special torque tools.

Amphenol’s SurLok Plus™ is an environmentally sealed version of our original SurLok but available in smaller sizes, and features a quick lock and press-to-release design. Incorporating the latest R4 RADSOK® Technology, SurLok Plus™ is a compact, quick mating, and robust product line.

The RADSOK® high amperage contact technology utilizes high tensile strength properties of a stamped and formed, high conductivity alloy grid to produce low insertion forces while maintaining a large conductive surface area.

The R4 version of the RADSOK® represents the culmination of three years of research and
development in laser welding copper based alloys.

SurLok Plus 5.7mm (IP67)

Right Angle Plug

Suit 16mm2 cable SLPPA16BSB Drawing
Suite 25mm2 cable SLPPA25BSB Drawing

Right Angle Plug

Suit 16mm2 cable SLPPA16BSO Drawing

Right Angle Plug

Suit 16mm2 cable SLPPA16BSR Drawing
Suite 25mm2 cable SLPPA25BSR Drawing

Panel Mount

Threaded Post SLPRATPSB Drawing

Panel Mount

Threaded Post SLPRATPSO Drawing

Panel Mount

Threaded Post SLPRATPSR Drawing


  • R4 RADSOK®Technology
  • IP67 Rated
  • Touch Proof
  • Quick lock and press-to-release design
  • “Keyway”design to prevent incorrect mating
  • 360° rotating plug
  • Various termination options (Threaded, Crimp, Busbar)
  • Compact robust design

Technical Data

  • Contact Size : 5.7mm (120A), 8.0mm (200A), 10.3mm (350A)
  • Current Rating : 100-350A (up to 400A)
  • Operating Voltage : 1000VAC/DC
  • Operating Temperature : -40ºC to 125ºC
  • IP Rating : IP67
  • Protection : Touch Proof
  • Flammability :  UL 94 V-0
  • Locking : Spring Locking
Thank you! Your subscription has been confirmed. You'll hear from us soon.
Sign up to our newsletter
Get all the latest updates