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REOHM series 155 - Combination

Max. continous power: 30.000 W

REOHM series 155 - Combination

Unique Selling Point


  • EMC cables and screw connections
  • Easy installation
  • Suitable for the use with any frequency drive
  • Compact modular structure
  • High protection rating up to IP 65
  • Good heat dissipation
  • 4-hole fixing for easy assembly

Description


As BW (Braking resistor)

When an electric machine operates as a generator (Electromotive brake), the brake 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.

 

Maximum energy with minimum space

  • This braking resistor of the REOHM series is very compact with high capacity
  • Maximum energy is provided in smallest space and very high protection rating
  • The resistor is to be as-sembled vertically with the terminal box at the bottom
  • Sufficient convection is to be ensured
  • Ratings higher than 22kW require a separate terminal box
  • Test voltage: 2,5 kV AC (at 900 V rated voltage
  • Ambient temperature: -10...+40°C
  • Max. temperature: >300°C

Optional

  • With temperature switch
  • Cover for protection against high surface temperatures


Technical Data


  • Resistance values : 0,8 - 820 Ohm
  • Continuous power : 4000 - 30000 W
  • max. operating voltage : 900 V

Circuit example

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

REOHM series 155 - Combination

Max. continous power: 30.000 W

Technical data

Type

Resistance value
R [Ohm]

Continous power
P [W]

max. operation voltage
U [V]

155 / 4000

10-200

4000

900

155 / 5000

6-500

5000

155 / 6000

4-600

6000

155 / 7500

3-600

7500

155 / 9000

2,1-750

9000

155 / 10000

2,1-820

10000

155 / 12000

2-740

12.000

155 / 15000

1,5-700

15.000

155 / 18000

1,2-630

18.000

155 / 22000

1-560

22.000

155 / 24000

0,9-580

24.000

155 / 27000

0,8-600

27.000

155 / 30000

0,8-600

30.000

Higher power ratings on request

 

 

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 155 - Combination

Max. continous power: 30.000 W

Dimension drawing

The designs below show the resistors as IP54 / 64 / 65 with a terminal box and cable gland. With IP20 they are provided with terminal and wires.

Design IP 20

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

REOHM series 155 - Combination

Max. continous power: 30.000 W

Dimensions

Type

L1 
[mm]

L2 
[mm]

B1 
[mm]

B2 
[mm]

H1
[mm]

H2 
[mm]


[mm]

Cable
gland

Terminal

Design

155 / 4000

750

500

420

390

95

75

8,5

M25

10 mm²

BF 1

155 / 5000

880

630

420

390

95

75

8,5

M25

10 mm²

BF 1

155 / 6000

970

720

420

390

95

75

8,5

M25

10 mm²

BF 1

155 / 7500

880

630

590

560

95

75

8,5

M25

10 mm²

BF 2

155 / 9000

970

720

590

560

95

75

8,5

M25

10 mm²

BF 2

155 / 10000

750

500

940

910

95

75

8,5

M32

16 mm²

BF 4

155 / 12000

970

720

770

740

95

75

8,5

M32

16 mm²

BF 3

155 / 15000

970

720

940

910

95

75

8,5

M32

16 mm²

BF 4

155 / 18000

970

720

2x590

2x560

95

75

8,5

M32

35 mm²

2x BF 2

155 / 22000

880

630

3x590

3x560

95

75

8,5

M32

35 mm²

3x BF 2

155 / 24000

970

720

2x770

2x740

95

75

8,5

M32

35 mm²

2x BF 3

155 / 27000

970

720

3x590

3x560

95

75

8,5

M32

35 mm²

3x BF 2

155 / 30000

970

720

2x940

2x910

95

75

8,5

M32

35 mm²

2x BF 4

Other fixing dimensions possible 

 

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.

 

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

REOHM series 155 - Combination

Max. continous power: 30.000 W

Touch protection

 

Dimensions of touch protection

Type

L1

[mm]

L2

[mm]

B1

[mm]

B2

[mm]

H

[mm]

D

[mm] 

155 / 4000

700

620

520

500

200

7,0x10,0

155 / 5000

800

720

520

500

200

7,0x10,0

155 / 6000

900

820

520

500

200

7,0x10,0

155 / 7500

800

720

690

670

200

7,0x10,0

155 / 9000

900

820

690

670

200

7,0x10,0

155 / 12000

900

820

870

850

200

7,0x10,0

155 / 15000

900

820

1040

1020

200

7,0x10,0

155 / 18000

900

820

2 x 690

2 x 670

200

7,0x10,0

155 / 24000

900

820

2 x 870

2 x 850

200

7,0x10,0

155 / 27000

900

820

3 x 690

3 x 670

200

7,0x10,0

155 / 30000

900

820

2 x 1040

2 x 1020

200

7,0x10,0