www.vishay.com

7

MP30

Vishay Angstrohm

Document Number: 66105

Revision 25-Aug-00

MP30

MODEL

Power Rheostats

150 Watt

— Resistance value

— Amps

— Date code

A

BUSHING AND SHAFT CONFIGURATION

25

VALUE

NOTE: For Additional Features: Submit detailed drawing information when ordering “non-standard” parts.

ORDERING INFORMATION

* All other intermediate resistance values are available

and can be manufactured on a normal delivery cycle.

FEATURES

• Diameter 4" [101.60mm]

• Depth behind panel 1 3/4" [44.45mm]

• Shaft 1/4" [6.35mm] diameter

• Rotation 300

° ± 5° and weight 1.014 pounds (460 grams)

• Total ohms available in higher ranges up to 25,000 ohms

• Mounts on panels up to 1/4" [6.35mm] by means of a 3/8" [9.52mm], 32 bushing

and hex nut

• Non-turn lugs require 3/16" [4.76mm] hole, 1/2" [12.70mm] below center of shaft -

Model"A" shaft

• U. L. Approved

MAXIMUM

AMPS

TOTAL

OHMS

17.350

12.247

8.660

7.071

5.477

4.472

3.873

3.162

2.449

1.732

1.414

1.225

0.866

0.707

0.612

0.548

0.447

0.387

0.274

0.244

0.173

0.141

0.122

0.5

1.0

2.0

3.0

5.0

7.5

10.0

15.0

25.0

50.0

75.0

100.0

200.0

300.0

400.0

500.0

750.0

1000.0

2000.0

2500.0

5000.0

7500.0

10000.0

35

39

39

70

73

70

70

120

152

190

228

228

265

303

342

342

418

432

575

456

865

1000

1000

APPROXIMATE

STEPS

RESISTANCE VALUES*

MARKING

Angstrohm rheostat standard

wattage ratings are based on a

300

°C rise in “free-air” in ambient

not exceeding + 40

°C (shown). For

other applications, wattage ratings

are available based on 340

°C rise in

"free-air" in ambient not exceeding

+ 25

°C, and in other cases + 50°C.

DERATING

A = Standard Flatted Shaft

40

100

150

200

250

300

350

AMBIENT TEMP. DEG. CENTIGRADE

120

100

80

60

40

20

0

Knob # 552

DIMENSIONS in inches [millimeters]

2 1/2

[63.50] R

4

[101.60]

Dia.

2 7/16

[61.91]

(3) .169 [4.29] Holes

1 1/2

[38.10]

Dial # 548

2 1/4 [57.15]

3/4

[19.05]

1/4 [6.35]

1 3/4

[44.45]

7/8

[22.22]

3/8

[9.52]

1/2

[12.70]

3/8

[9.52]

3/32

[2.38]

7/32

[5.56]

1/16

[1.59]