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DBR DYNAMIC
BRAKING
RESISTORS

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GENERAL SPECIFICATIONS

Model

Power Rating With Fan

Power Rating In Free Air

Resistance Range [ohm]

Tolerance

DBRI-EW 16K

9.6 KW

8 KW

2 to 40

+-5%(J)

+-10%(K)

DBRI-EW 30K

18 KW

15 KW

2 to 12

DBRI-EW 40K

24 KW

20 KW

2 to 20

DBRI-EW 50K

30 KW

25 KW

3 to 20

DBRI-EW 70K

40 KW

35 KW

3 to 40

DBRI-EW 100K

60 KW

50 KW

5 to 40

DBRI-HW 16K

9.6 KW

8 KW

3 to 65

DBRI-HW 30K

18 KW

15 KW

3 to 30

DBRI-HW 40K

24 KW

20 KW

5 to 50

DBRI-HW 50K

30 KW

25 KW

5 to 50

DBRI-HW 70K

40 KW

35 KW

10 to 70

DBRI-HW 100K

60 KW

50 KW

10 to 150

DBRI-VW 16K

9.6 KW

8 KW

1 to 9.5

DBRI-VW 30K

18 KW

15 KW

1.2 to 10

DBRI-VW 40K

24 KW

20 KW

1.2 to 18

DBRI-VW 50K

30 KW

25 KW

1.5 to 20

DBRI-VW 70K

40 KW

35 KW

1.5 to 35

DBRI-VW 100K

60 KW

50 KW

1.5 to 40

Notes:
-DBRI-EW: Edge wound type (inductive)
-DBRI-HW: Heli-wire wound type (inductive)
-DBRI-VW: V-W grid type (non-inductive)
-The DBRO internal structure is the same as the DBRI
-The DBRO has a watertight external structure
-The Power rating is based on a 375C rise above an ambient of 40C
-Fan equipped models have different dimensions. (Check With RARA for details)
-Power increases of up to 100% are possible with some fan
 equipped models with corresponding increases in dimensions. (Check with RARA for details)

CHARACTERISTICS

Insulating Resistance Min.100Mohms
Dielectric Strength AC 2000V/Min.
Allowable Temp. Rise 375C

DIMENSIONS FOR INDOOR MODELS

Model

Approximate Weight(kg)

Dimensions in [mm]

W

W1

D

D1

H

DBRI-EW,HW,VW 16K

26

640

605

420

335

320

DBRI-EW,HW,VW 30K

55

640

605

420

335

540

DBRI-EW,HW,VW 40K

64

640

605

420

335

540

DBRI-EW,HW,VW 50K

80

640

605

420

335

760

DBRI-EW,HW,VW 70K

120

640

605

420

335

1200

DBRI- EW,HW,VW 100K

235

640

605

840

755

980/1200


D
IMENSIONS FOR OUTDOOR MODELS

Model

Approximate Weight(kg)

Dimensions in [mm]

W

W1

D

D1

H

DBRO-EW,HW,VW 16K

32

720

605

560

335

390

DBRO-EW,HW,VW 30K

60

720

605

560

335

590

DBRO-EW,HW,VW 40K

72

720

605

560

335

590

DBRO-EW,HW,VW 50K

87

720

605

560

335

790

DBRO-EW,HW,VW 70K

130

720

605

560

335

1190

DBRO-EW,HW,VW 100K

250

720

605

980

755

1190

ORDERING PROCEDURE EXAMPLE

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