Resistors for a wide range of applications and industries

– We supply solutions e.g. for trains, hybrid vehicles, wind turbines, ships, power grids and elevators



Within the Backer Group we can offer a wide range of technologies for production of resistors.

An advantage with resistors from Backer is that they can withstand high loads, since we use large diameter resistance wires which gives low resistance. The posibility to use water/liquid as cooling media enables high power resistance and we also offer large element diameters, which withstands high voltage.

All resistors are custom made, but our standard concept speeds up the development process.

Technical data

Resistors - Technical data


Steel - Grade D
Stainless steel - EN 1.4301, EN 1.4404, UNS S31254, UNS N08904, Incoloy 800, Incoloy 825
Aluminum AA6060, AA6063

Types of cooling

Air: convection or forced convection
Liquid: water, oil etc.


Tubular elements: Ø 8.5, 14, 21 mm
Alu-profile I- or X- shaped, with or without cooling fins

Fastening of elements

Flanges: welded or brazed
Nipples: pressed or brazed


Threaded pins M4/M6


Ø 8,5mm alu-profile

Ø 14mm alu-profile

Ø 18mm alu-profile

Ø 21mm alu-profile

Min. resistance/ element

0,12 ohm/m

0,06 ohm/m

1,6 ohm/m

1,5 ohm/m

Resistance tolerance

± 5%

± 5%

± 5%

± 5%

Dielectric strength

1,5 kV DC
1 min

4 kV DC
1 min

7 kV DC
1 min

9 kV DC
1 min


300-6000 mm

300-6000 mm

300-1500 mm

300-1500 mm

Min. bending radius

12,5 mm

25 mm

40 mm

60 mm


0,5-1 µH/element

Example applications

Examples of applications:

  • Trains
  • Hybride vehicles
  • Wind power mills
  • Ships
  • Cranes
  • Trams
  • Frequency converters
  • Sine-wave filter resistors

Product examples

Product examples:

  • Brake resistors
  • Power resistors
  • Load resistors
  • Shunt resistors
  • Water- / liquid cooled resistors

The elements are 100% tested for insulation and dielectric rigidity. Also, the elements are often built into protection cages to prevent contact with heated parts. Also, computerized load simulation is done to optimize each resistor application.

Terminal boxes with different IP class can be used.
link to Backer terminal boxes >> (opens in new window)

Numerous elements are often connected together, series and/or parallel, to achieve intended properties.

Other resistors

Other resistors - a wide product range

The Backer Group, is an expert on electric resistors and brake resistors. They are known world-wide for the qualified design and hi-quality production of resistors for e.g. electro mechanic-, wind power mill- and the tele-com industry.


Among their products can be mentioned:

  • Aluminium housed resistors
  • Ceramic Wirewound resistors
  • Open wirewound resistors
  • Rheostats
  • Steel grid resistors

BACKER ALPE · Fco.I. Madero No. 2137 Pte. Col. Centro, C.P. 64000 Monterrey, N.L
Mexico · TEL: +52-81 1133 8753 · [email protected] · Corp. reg: 5560530569

2018 Backer Alpe. All rights reserved.