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 (IP67)

Right Angle Plug

Suit 16mm2 Cable - 5.7mm SLPPA16BSB Drawing
Suit 25mm2 Cable - 5.7mm SLPPA25BSB Drawing
Suit 35mm2 Cable - 8mm SLPPB35BSB Drawing
Suit 50mm2 Cable - 8mm SLPPB50BSB Drawing

Right Angle Plug

Suit 16mm2 Cable - 5.7mm SLPPA16BSO Drawing
Suit 25mm2 Cable - 5.7mm SLPPA25BSO Drawing
Suit 35mm2 Cable - 8mm SLPPB35BSO Drawing
Suit 50mm2 Cable - 8mm SLPPB50BSO Drawing

Right Angle Plug

Suit 16mm2 Cable - 5.7mm SLPPA16BSR Drawing
Suit 25mm2 Cable - 5.7mm SLPPA25BSR Drawing
Suit 35mm2 Cable - 8mm SLPPB35BSR Drawing
Suit 50mm2 Cable - 8mm SLPPB50BSR Drawing

Panel Mount

Threaded Post - 5.7mm SLPRATPSB Drawing
Threaded Post - 8mm SLPRBTPSB Drawing

Panel Mount

Threaded Post - 5.7mm SLPRATPSO Drawing
Threaded Post - 8mm SLPRBTPSO Drawing

Panel Mount

Threaded Post - 5.7mm SLPRATPSR Drawing
Threaded Post - 8mm SLPRBTPSR 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
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