ERIFLEX® FLEXIBAR Flexible Insulated Busbar


Eriflex Flexibar Flexible Insulated Busbar

ISO 9001 certified quality control procedures and proprietary automated manufacturing processes have made ERIFLEX® FLEXIBAR a preferred conductor for panelboard designers and assemblers throughout Europe and the Americas. ERIFLEX FLEXIBAR has a long history of proven low voltage application success throughout the world.

ERIFLEX FLEXIBAR has added grooves on the inner surface of the insulation sleeve to improve sliding between the central conductor and the insulation material. The grooves help reduce the contact surface between the central conductor and the insulation material. This results in improved flexibility of the flexible busbar. Result: <20% of the inner surface is in contact with the central conductor. This innovative insulation design makes ERIFLEX FLEXIBAR more flexible than ever, and allows users to optimize the design of their electrical power connection.


  • ERIFLEX FLEXIBAR consists of a stack of thin copper laminates (available in plain or tin plated) and protected within a durable PVC insulation
  • Internal copper laminates are free to slide within the insulation, offering a wide variety of twisting and bending possibilities for panelboard assembly
  • Terminals are created by punching ERIFLEX FLEXIBAR laminates for optimum surface to surface connectivity
  • The cost of lugs and associated labor is eliminated when using ERIFLEX FLEXIBAR. It is a cost effective alternative to large diameter electrical cable with lugs or solid busbar for panelboard construction
  • The insulation is a high-resistance, self-extinguishing PVC or silicone compound
  • Traceability code and designation Part Number are marked on product
  • Easily formed, ERIFLEX FLEXIBAR improves assembly flexibility and aesthetics of panels
  • Ideal alternative to large cable & rigid busbar
  • Quality: 100% production dielectric tested
  • Full range from 27 mm2 up to 1200 mm2


  • Working temperature -25ºC up to 105ºC (-13ºF up to 221ºF) ERIFLEX FLEXIBAR
  • AWM Style 11343 Nominal voltage = 1000 V AC/1500 V DC (IEC & UL®)
  • Self-extinguishable
  • High mechanical resistance
  • High elongation value
  • High current withstanding
  • High copper quality (99.9% purity)
  • High conductivity

Any low voltage cable or busbar design is a candidate for ERIFLEX FLEXIBAR, including:

  • Power Supplies and Converters
  • Motor Control Centers
  • Control Panels
  • Busbar Systems
  • Panelboards
  • Switchboards
  • AC & DC Drive Units
  • Transformers
  • Anywhere cable or busbar limitations present a problem, ERIFLEX FLEXIBAR offers connection versatility


Custom part fabrication with ERIFLEX FLEXIBAR is relatively easy and can be accomplished with standard tools. For small quantities, ordinary hand tools are adequate. When fabricating large quantities, dedicated production tooling is more cost-effective.

More Information

ERIFLEX FLEXIBAR Characteristics
 Eriflex FLEXIBAR Flexible Insulated Busbar characteristics
  • ERIFLEX FLEXIBAR is UL® Recognized and CSA certified. The black insulation is moisture resistant, flame (VW-1) and UV retardant, and self-extinguishing (UL 94 V0).
  • ERIFLEX FLEXIBAR connections are made by punching directly through the laminates. Since there are no lugs to purchase, fewer parts are required. Installation is simpler and faster.
  • ERIFLEX FLEXIBAR is formed with multiple layers of thin electrolytic copper.
  • Easily formed, ERIFLEX FLEXIBAR holds its shape, increasing the efficiency of your designs. When bending the conductor into place, its laminates slide freely within the insulation, conforming to your design configurations.

Advantages of Using ERIFLEX FLEXIBAR

  • Requires less installation space when compared to cable
  • Reduces assembly time
  • Eliminates the cost and installation of lugs
  • Reduces the length and number of conductors
  • ERIFLEX FLEXIBAR is terminated like a busbar, so connections operate at a lower temperature
  • Improves design flexibility
  • Easily formed and holds its shape
  • Insulation allows for closer spacing than traditional busbar designs
  • Improves aesthetics
  • Reduces inventory costs
  • Lower installed cost

Comparison to Cable

  • When compared to conventional cable, ERIFLEX FLEXIBAR requires less copper to achieve comparable ampacity
  • ERIFLEX FLEXIBAR offers space savings
  • No lugs or intermediate connection devices are used, improving reliability
  • ERIFLEX FLEXIBAR eliminates the multiple cables and lugs which offers the most efficient and cost-effective connection available


ERICO offers a complete family of tools customized for cutting, stripping, bending, twisting & punching ERIFLEX FLEXIBAR.

UL is a registered trademark of UL LLC.


Hydraulic & Manual Tools

ERIFLEX FLEXIBAR Fabricated Parts Design Guide

ERIFLEX FLEXIBAR UL Certification, Panelboard and Switchboard Accessories

ERIFLEX FLEXIBAR UL Certification, Grounding and Bonding Equipment

ERIFLEX FLEXIBAR UL Certification, Terminal Blocks