Stromschienenisolation von Krempel
Busbar Insulation

Electrical insulation films with adhesive layer for laminating busbars

Whether it's a car with a conventional combustion engine or an alternative drive, a magnetic resonance tomograph or an IT server, as varied as this list may sound, they all have one thing in common: laminated busbars are installed for efficient and space-saving power distribution. Insulation is essential. And that's where we come into the equation. We are absolute specialists when it comes to insulation materials for electrical appliances.

We have an extensive portfolio when it comes to busbar insulation, which covers a broad area of application – both films for less sensitive standard applications and high-performance versions for the highest demands for high temperature classes. Our standard portfolio includes busbar insulation with a nominal thickness of 125 µm and 185 µm for temperature classes A (105°C) and B (130°C).

Stromschienenisolation drei Folien

Depending on the temperature class and the requirements, the result can be special combinations of polymer films (dielectrics) and single-sided or double-sided adhesive systems. The single-sided or double-sided adhesive system allows rapid further processing and lasting adhesion. In order to guarantee optimal technical properties such as rigidity and dialectric strength, we only work with selected, low-shrinkage polymer films:

  • PET
  • Polyimide
  • Nomex®
  • Tedlar®

Our electrical insulation films fulfil all of the requirements of UL61800-5-1. This means that there is a cost- and time-saving route to UL508C certification of your end products available to you.

Busbar insulation from Krempel

You can have confidence in this:

  • The best insulation properties
  • Temperature-resistant up to 130°C. Temperature class B according to UL
  • UL listing (OCDT2.E488244)
  • Flame retardant according to UL
  • RoHS compliant according to 2011/65/EU
  • REACH compliant
  • Highly flexible
  • Excellent adhesion properties
  • Easily removable protective film
  • Suitable for punching, cutting, drilling and soldering processes
  • Laminable through pressing
  • Halogen free
  • Wide variety of materials

Our standard portfolio



Temperature class         

Total thickness


Film thickness


Adhesive thickness


Total surface weight


PET one-sided A (105°C), B(130°C) 155 125

33, 30

PET double-sided A (105°C), B(130°C) 185 125 30 250
PET one-sided A (105°C), B(130°C) 215 185 30 300
PET double-sided A (105°C), B(130°C) 245 185 30 335


Contact us for higher temperature classes or individual requirements. We will find you the right busbar insulation for your specific area of application.

Busbar insulation film

Busbar insulation film

Busbar insulation cut to size on copper plate

Busbar insulation cut to size on copper plate

Busbar insulation

Busbar insulation

Jochen Enderle, Key Account Manager, Global Sales Mobility
Contact me
Jochen Enderle
Key Account Manager
Global Sales Mobility

Contact form