Powerohm Products

Standard Motor Control Designs The following table contains standard designs for three-phase adjustable ballast resistors. Contact the factory for information on motors not listed in the table. OHMS PER PHASE 3-PHASE ADJUSTABLE BALLASTS FOR SMALL SQUIRREL CAGE MOTORS DIMENSIONS IN INCHES MOTOR H.P. MOTOR AMPS

CATALOG NUMBER 230 VOLTS BR230-50 BR230-75 BR230-100 BR230-150 BR230-200 BR230-300 BR230-500 BR230-750 BR230-1000 460 VOLTS BR460-50 BR460-75 BR460-100 BR460-150 BR460-200 BR460-300 BR460-500 BR460-750 BR460-1000 575 VOLTS BR575-50 BR575-75 BR575-100 BR575-150 BR575-200 BR575-300 BR575-500 BR575-750 BR575-1000

A

B

D

E

C

1/2 3/4

2.0 2.8 3.6 5.2 6.8 9.6

19.9 14.2 11.1

12 12 12 12 12 12 19 19 19 12 12 12 12 12 12 19 19 19 12 12 12 12 12 12 19 19 19

10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10

5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5

11-1/8 11-1/8 11-1/8 11-1/8 11-1/8 11-1/8 18-1/8 18-1/8 18-1/8 11-1/8 11-1/8 11-1/8 11-1/8 11-1/8 11-1/8 18-1/8 18-1/8 18-1/8 11-1/8 11-1/8 11-1/8 11-1/8 11-1/8 11-1/8 18-1/8 18-1/8 18-1/8

7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2

1

1-1/2

7.7 5.9 4.1 2.6 1.8 1.4

2 3 5

15.2 22.0 28.0

7-1/2

10

1/2 3/4

1.0 1.4 1.8 2.6 3.4 4.8 7.6

79.9 56.9 44.3 30.6 23.4 16.6 10.5

1

1-1/2

2 3 5

7-1/2

11.0 14.0

7.2 5.7

10

1/2 3/4

0.8 1.1 1.4 2.1 2.7 3.9 6.1 9.0

124.5 90.5 71.1 47.4 36.9 25.5 16.3 11.1

1

1-1/2

2 3 5

7-1/2

10

11.0

9.1

CONSTRUCTION: Powerohm's three-phaseadjustableballast resistors featureour quality resistor elementsassembled in our GLE enclosures. Our durable GLE enclosures have a mill galvanized finish. Contact the factory for special space constraints, etc. TOP VIEW FRONTVIEW

C

E B

7/16" DIA. MTG. HOLES

A D