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

REOhm R 152

Load- and discharge resistor, max. continous power: 330 W

REOhm R 152

Unique Selling Point


  • Very flat and compact construction
  • Easy installation
  • Short-circuit proof
  • Suitable for the use with any frequency drive
  • Use even in rough conditions
  • Good heat dissipation, assembly on heat sink possible
  • Highly resistive on overload

Description


The load and discharge resistors of REO are used to damp over-voltages or to dissipate excess energy that originates, for example, on braking or starting up. Typical areas of application are the use as a resistor for charging the intermediate circuit capacitance, as a braking- or load resistor. 

Typical Applications: 

  • Drive Technology
  • Renewable energy
  • Railway engineering

  

Maximum energy with minimum space

  • This unit is very compact with high power
  • 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


Technical Data


  • Resistance values : 3 - 620 Ohm
  • Continuous power : 120 - 330 W
  • max. operating voltage : 900 V

Circuit example

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

REOhm R 152

Load- and discharge resistor, max. continous power: 330 W

Technical data

Type

Restiance value
[Ohm]

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

max.
opersation voltage
[V]

200K

220K

152 / 100

10 - 620

120

160

900

152 / 150

12 - 500

150

200

152 / 200

20 - 350

200 280

152 / 250

3 – 430

250

330

Higher power ratings on request

 

 

 

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 R 152

Load- and discharge resistor, max. continous power: 330 W

Dimension drawings



Dimensions

Type

B1
[mm]

B2
[mm]

H1
[mm]

L1
[mm]

L2
[mm]

L3
[mm]

D
[mm]

Connection wire

152 / 100

100

84

14

100

70

250

4,2

2 x AWG 18,UL 1659

152 / 150

100

84

14

150

120

250

4,2

2 x AWG 18,UL 1659

152 / 200

100

84

14

200

170

250

4,2

2 x AWG 18,UL 1659

152 / 250

100

84

14

250

220

250

4,2

2 x AWG 18,UL 1659

Other fixing dimensions possible

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

REOhm R 152

Load- and discharge resistor, max. continous power: 330 W

Surface temperature in function of power

Surface temperature REOhm 152 / 100

Surface temperature REOhm 152 / 150

 


Surface temperature REOhm 152 / 200

 

Surface temperature REOhm 152 / 250

 

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

 

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

REOhm R 152

Load- and discharge resistor, max. continous power: 330 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.