SICON By PFISTERER | Shearbolt Connectors with Stepless Shear-Off Bolts

Published 11 May 2021

SICON By PFISTERER | Shearbolt Connectors with Stepless Shear-Off Bolts

SICON Shearbolt Connectors

The Right Connection for All LV MV HV Conductors – For years, bolted clamps, connectors, and cable lugs have been gaining ground – with good reason. Bolted connectors offer technical and practical advantages that compression technology cannot match.

Meet the Next generation SICON connectors from Pfisterer.

Bolt type connectors offer not only technical, but also practical advantages over compression technology. All SICON Shearbolt Cable Connectors cover a wide conductor cross-section range so that you always have the right connectors on site for any application.

Main benefits of Sicon Connectors include:

  • Reliable connection for all conductors
  • Optimal contact force for all conductors
  • No damage to individual strands
  • Installation with standard tools
  • Ideal for all type of joints or terminations
  • Wide application range
  • See also SEANEX Connectors




Thorne & Derrick provide competitive prices and fast delivery from stock for the complete range of LV MV HV Power Products manufactured by Pfisterer – this includes Pfisterer CONNEX MV HV cable plugs and terminations.

Pfisterer Sicon

Pfisterer Sicon

Benefits of the Pfisterer Shearbolt Connectors

Simple Installation of sicon with Standard Tools

SICON bolted connectors are installed directly onto the ends of the conductor with a standard allen key. The innovative design of the stepless shear bolt allows simple installation regardless of the conductor type. Optimal contact force is always achieved with the special design of the bolt.

Easy To Install shearbolt connectors

All SICON connectors can be easily installed, even under tight spots. The bolt shears off smoothly when it is tightened, while the remains stay in the tool and can be safely disposed of. The bolt always shears off at the top edge of the connector body. This way, there are no sharp protrusions. All edges of the connector body are rounded.

Cost-Effective Sicon Connectors

Every SICON connector covers a wide x-section range. This way, you always have the right connectors with you on site. And even if during repair work it is unclear what type of conductors must be connected and in which condition are they in, SICON is the right choice.
SICON connectors are electrically/mechanically type-tested in accordance with IEC 61238-1 class A and ANSI C119.4.

All Conductors Are Optimally Connected

SICON connectors can be used independently of the conductor material , type, voltage level and current. No matter whether aluminum or copper, solid or stranded – the conductor is always connected with perfect contact pressure. For aluminium conductors, this means with a contact force up to 30% higher than of conventional connectors. The transverse grooves in the clamping channel break through the oxidation layers and reliably establish the contact.

Pfisterer SICON Shearoff Cable Connectors

Pfisterer SICON Shearoff Cable Connectors



Sicon Application Range

The Pfisterer SICON range of Shearbolt Cable Connectors is made up of Split Connectors, Branch Connectors and Cable Lugs.

  • Split Connectors are for use in installations where it is difficult to install the connector on the conductor
  • Branch Connectors can be used to join 3 different conductors regardless of size or material
  • Cable Lugs enable the cable ends of electrical devices to be connected with a bolt or a stud

Branch Connector

Cable Lug Central Palm

branch connector cable lug central palm

Cable Lug NEMA

Split Connector

cable lug NEMA split connector

Thorne & Derrick JOINTERS BLOG

Subscribe now to our POWER NEWSLETTER– a monthly email circulation packed with news, projects, videos, technical tips, training information, promotions, webinars, career opportunities and white papers.

Includes access to our popular JOINTERS BLOG with contributions from utility professionals, linesmen and cable jointers working on MV HV EHV cables and overhead lines typically at 11kV, 33kV, 66kV and up to 132kV.

15,000+ Subscribers.

Jointers Blog