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Surlock Plus Series Connector

Quick Lock and Press-to-Release Design, Plastic, RADSOK® Technology

The SurLok Plus compression lug is a field installable, highly reliable alternative to common compression lugs

Using industry standard crimp, screw, and busbar termination options, thus eliminating the need to purchase special torque tools. 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.

Product Features and Benefits:

Keyway Multiple keyways
Lock Quick lock and press-to-release design
Plug 350° rotating plug optional
Receptacle Various termination options (Thread, Crimp, Busbar)
Voltage 1000V / 1500V optional
Protection Touch Proof
Design Compact robust design

The connector’s design incorporates an integral latching system that ensures a definitive electrical and mechanical connection.

Connector housings are manufactured with a thermoplastic material that is not only durable, but also with excellent dielectric, mechanical properties and meet environmentally RoHS compliant.

Contacts are derived from quality copper alloy to ensure an electrically reliable connection.

  • UL1977/4128 and TUV 2PfG2740 certified
  • R4 RADSOK® Technology
  • 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
  • EMI Shielding and HVIL Function Available

Technical Information:

Description RADSOC® Size
3.6mm 5.7mm 8.0mm 8.0mm EMI 10.3mm 14mm
Current Rating 50A~70A 100A~120A 120A~200A 150A~250A 250A~350A 250A~500A
Operating Temperature -40°C~125°C -40°C~105°C
(1000V DC)
-40°C~105°C
(1000V DC)
-40°C~105°C
(1000V DC)
-40°C~105°C
(1000V DC)
-40°C~105°C
(1000V DC)
-40°C~125°C
(1500V DC)
-40°C~125°C
(1500V DC)
-40°C~125°C
(1500V DC)
Sealing IP67 (Mated) IP67 (Mated) IP67 (Mated) IP67 (Mated) IP67 (Mated) IP67 (Mated)
Flammability UL 94 V-0 UL 94 V-0 UL 94 V-0 UL 94 V-0 UL 94 V-0 UL 94 V-0
Locking Spring Locking Spring Locking Spring Locking Spring Locking with CPA Spring Locking Spring Locking with CPA
RoHS Compliant Yes Yes Yes Yes Yes Yes
EMI Shielding No No No Yes No Optional
HVIL Function No No No Yes No Optional
Durability ≥100 cycles ≥100 cycles ≥100 cycles ≥100 cycles ≥100 cycles ≥100 cycles
IPXXB Yes Yes Yes Yes Yes Yes