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REOhm series 153

Max. continous power: 360 W

REOhm series 153

Unique Selling Point


  • Small dimensions, 
  • Fast connection
  • Short-circuit proof
  • Matching to any frequency converter
  • Can be used under rough conditions 
  • Vertical or horizontal installation possible
  • High-resistance at overload
  • Protection class up to IP65
  • Certified for railway engineering

Description


As BW (Braking resistor)

When an electric machine operates as a generator (Electromotive brake), the braking resistor protects the machine from a voltage rise in the intermediate circuit. The current reduces als the speed of the machine. 

As R (Charging resistor, damping resistor, filter resistance, etc.)

The charging resistor is a current limiting resistor for the charging and discharging of capacitors and limitates for example the current flowing into the intermediate circuit capacitor inrush current. For this the device must be designed for a high single pulse energy and nominal voltage. The inductance of the resistor contributes to limit the inrush current, so wirewound resistors are the right choice.

As UL version

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 assem-bled 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


Technical Data


  • Resistance values : 7 - 620 Ohm
  • Continuous power : 160 - 360 W
  • max. operating voltage : 900 V

Circuit example

Your contact: +49 - 212 8804-0 • info@reo.de

REOhm series 153

Max. continous power: 360 W

Technical data

Type

Resistance value
R [Ohm]

Continous power with 25°C
and surface temperature of.../´
P [ W ]

max.
operaton voltage
U [ V ]

200K

220K

153 / 100

7 - 400

160

240

900

153 / 200

10 - 500

160

240

153 / 300

8 - 620

200

280

153 / 400

10 - 310

250

360

Higher power ratings on request

 

 

Types-explanatory (breakdown)

Design Type Performance 1 Size Resistance Voltage Performance 2

Explanation

BW 153 L 300 47 1000 IP54 Example of a complete product
               
BW             Braking resistor
R             Loading, attenuation, filter resistance
  153           Type Series Name
    L         Horizontal version
    S         Upright mounting
    FK         Foreign body (cooling)
    AF         Forced cooling by customer
    TS         Thermo switch
    9         Customized
      300       Size [W]
        47     Resistance value [Ohm]
          1000   Voltage (if not standard)
            UL With UL approval
            IP66 Protaction rating

 

 

Note

The ratings apply for 100 % duty cycle and free access and exit of cooling air.

In general: Is the ambient temperature higher than 40 °C, the continuous power must be reduced by 5 % per 10 K temperature rise.

Your contact: +49 - 212 8804-0 • info@reo.de

REOhm series 153

Max. continous power: 360 W

Dimension drawings



Dimensions

Type

L1

[mm]

L2

[mm]

L3

[mm]

L4

[mm]

B1

[mm]

B2

[mm]

H

[mm]

D

[mm]

Connection wire

153 / 100

160

145

130

250

104

70

29

4,5

 IP20/40
PTFE
AWG14

153 / 200

160

145

130

250

104

70

29

4,5

153 / 300

210

195

180

250

104

70

29

4,5

153 / 400

260

245

230

250

104

70

29

4,5

Other fixing dimensions possible

Your contact: +49 - 212 8804-0 • info@reo.de

REOhm series 153

Max. continous power: 360 W

Surface temperature in function of power

Surface temperature REOhm 153 / 100

Surface temperature REOhm 153 / 200

 


Surface temperature REOhm 153 / 300

 

Surface temperature REOhm 153 / 400

 

Surface temperature increase, even over temperature, describes the increase in surface temperature when loaded.

 

Your contact: +49 - 212 8804-0 • info@reo.de

REOhm series 153

Max. continous power: 360 W

Load diagram 

The power ratings apply for continuous duty. The power ratings can be increased in short-time operation in function of duty cycle by multiplication with the relevant factor from the diagram below or according to the formula as follows.