UL resistors

REO resistors are UL certified

The independent organisation "Underwriters Laboratories" (UL for short) has developed more than 1,300 safety standards.

Many of these standards are in accordance with the American National Standards (ANSI) and, alongside the requirements for electrical safety for electrical items, they also often take into account additional requirements in relation to flammability.

  • REOHM BW 151

    Braking resistor, max. continous power: 300 W

    BW 156
    • Resistance values: 1,1 - 2000 Ohm
    • Continuous power: 50 - 300 W
    • max. operating voltage: 900 V

    The braking resistor BW 151 is short-circuit proof and has a very good heat dissipation. Braking resitors of REO protect the machine from a voltage rise in the intermediate circuit. They are available as a braking resistor (BW Series) or as a charging resistor  (Series R).


    Typical Applications: 



    • Drive Technology

    • Wind power, solar energies

    • Railway engineering

    • Electromobility


     


    Available as UL version


    The profile resistors REOhm 151 are also UL-certified and have a power of 50 W up to 30 W (also as combination).


    Maximum energy with minimum space



    • In case of failure of resistor, this will become highly resistive.

    • Suitable for IP20 - IP54 applications

    • Test voltage: 2,5 kV AC (at 900 V rated voltage)



    Optional



    • With temperature switch

    • Cover for protection against high surface temperatures



  • REOhm series 153 (UL)

    Max. continous power: 360 W

    BW 156
    • Resistance values: 0,26 - 2000 Ohm
    • Continuous power: 100 - 400 W
    • max. operating voltage: 900 V

    The BW 153 braking is designed  for drives with frequency converters of small to medium output. The installation is close to the frequency converter. 
    In addition to the high protection class IP66, the profile resistors REOhm 153 are also UL-certified and have a power of 100 W up to 400 W (also as combination).


     Maximum energy with minimum space



    • Unity-version can be assembled as low-profile and upright

    • Suitable for IP 65 applications

    • The REO flat resistor can be screwed under or on
      the side of a frequency drive using a mounting plate

    • In case of failure of resistor, this will become highly resistive

    • Test voltage: 2,5 kV AC (at 900 V rated voltage)



    Optional



    • With temperature switch

    • Cover for protection against high surface temperatures



  • REOhm series 156 (UL)

    Max. continous power: 1.500 W

    BW 156
    • Resistance values: 0,3 - 2000 Ohm
    • Continuous power: 400 - 7500 W
    • max. operating voltage: 900 V

    The BW 156 braking is designed for drives with frequency converters of small to medium output. Installation in and outside the control cabinet is possible.
    In addition to the high protection class IP66, the profile resistors REOHM 156 are also UL-certified and have a power of 50 W up to 7.500 W (as combination).


     


    Optional



    • With temperature switch

    • Cover for protection against high surface temperatures



Downloads

  • Download
    Components for wind power generation Catalouge
    pdf

    Components for wind power generation Catalouge

    REO components for wind power generation Safe application for onshore and offshore installations
    Download
  • Download
    Braking resistors Overview
    pdf

    Braking resistors Overview

    REO Braking- and charging resistors The product range at a glance
    Download
  • Download
    Highest protection classes for highest requirements
    pdf

    Highest protection classes for highest requirements

    REO Braking resistors
    Download
  • Download
    High-voltage resistors of REO
    pdf

    High-voltage resistors of REO

    High reliability and long service life
    Download