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DBU
DYNAMIC BRAKING UNIT

 

- Used for load with relatively high damping frequency (ED), 20%.
- Up to a max of 4 parallel driving control units is possible.
- Used for load with high damping frequency.

GENERAL SPECIFICATIONS

Model

Max Input Direct Current Voltage

Applicable Inverter Capacity [kW]

Damping Resistance

Capacity[kW]

Min Resistance Value[]

IT150DBU-2H

200V series
DC 400V

11 kW

15 kW

3.2 kW

8.5

IT220DBU-2H

18.5 kW

22 kW

30 kW

4.8 kW

5.7

IT370DBU-2H

37 kW

45 kW

6.4 kW

4.2

IT550DBU-2H

55 kW

9.6 kW

2.8

IT150DBU-4H

400V series
DC 800V

11 kW

15 kW

3.2 kW

33.9

IT220DBU-4H

18.5 kW

22 kW

4.8 kW

22.8

IT370DBU-4H

30 kW

37 kW

6.4 kW

16.9

IT550DBU-4H

45 kW

55 kW

9.6 kW

11.4

IT750DBU-4H

75 kW

12.8 kW

8.4

CHARACTERISTICS

Surrounding Temp

-10C ~ 40C

Humidity

Relative humidity of under 90% RH (Should be no dew condensation)

Altitude

Under 1000m above the sea level

Cooling way

Natural cooling

Surrounding circumstance

There should be no corrosive gas inside panel, oil , inflammable gas and dust inside panel.

Max Turn  on time

6sec

Protecting function

Protection of heat sinks overheating, over current and output shortcut

Output signal

HEAT SINK heating, FUSE OPEN, OC trip signal

Parallel driving

Up to a max of 3 parallel driving units is possible.

Allowed damping freq.

Without cooling FAN, 10%

Ave damping torque

100%

DIMENSIONS

Copyright©, RARA Electronics Corporation
Tel:82-32-817-4325 Fax:82-32-817-4329

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