MP15
Vishay Angstrohm
Power Rheostats
50 Watt
FEATURES
•
•
•
•
•
•
Diameter 2 9/32" [57.94mm]
Depth behind panel 1 3/8" [34.92mm]
Shaft 1/4" [6.35mm] diameter
Rotation 300°
±
5°
Weight 0.321 pounds (145 grams)
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. Recongnized, File No. E51076
RESISTANCE VALUES*
TOTAL
OHMS
MAXIMUM
AMPS
APPROXIMATE
STEPS
DIMENSIONS
in inches [millimeters]
27/32
[21.43]
2 9/32
[57.94]
Dia.
1/2
[12.70]
1/4
[6.35]
1 3/8
[34.92]
11/32
[8.73]
Knob # 552
0.5
1.0
2.0
4.0
6.0
8.0
12.0
16.0
22.0
35.0
50.0
80.0
125.0
150.0
225.0
300.0
500.0
800.0
1000.0
1600.0
2500.0
3500.0
5000.0
8000.0
10000.0
10.00
7.07
5.00
3.54
2.89
2.50
2.04
1.76
1.50
1.19
1.00
0.79
0.63
0.58
0.47
0.41
0.32
0.25
0.22
0.18
0.14
0.12
0.10
0.08
0.07
24
46
50
44
74
85
108
108
123
148
113
147
178
173
203
214
290
365
358
367
460
505
565
695
693
1 1/2
[38.10]
1 17/32
[38.89]
3/8 [9.52]
.064 [1.63]
BUSHING 3/8 [9.52]. 32 Thread
with a 3/32 [2.38] Thick Hex Nut
1/32
[.794]
3/4
[19.05]
Dial # 548
.171 [4.34]
Holes for
No. 8 Screws
2 1/4 [57.15]
DERATING
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.
120
% OF RATED LOAD
100
80
60
40
20
0
40
100
150
200
250
300
AMBIENT TEMP. DEG. CENTIGRADE
350
* All other intermediate resistance values are available
and can be manufactured on a normal delivery cycle.
SPECIAL SHAFTS
in inches [millimeters]
1/2
[12.70]
11/32 [8.73]
3/4
[19.05]
5/8 [15.88]
5/8
[15.88]
1/2 [12.70]
27/32
[21.43]
11/32 [8.73]
TYPE B: 1/2 [12.70], 11/32 [8.73]
Models. Slotted shaft with standard
bushing for 1/8 [3.18] panel.
TYPE C: 3/4 [19.05], 5/8 [15.88]
Models. Locking bushing with
slotted shaft for 1/4 [6.35] panel.
TYPE D: 5/8 [15.88], 1/2 [12.70]
Models. Locking bushing with
slotted shaft for 1/8 [3.18] panel.
TYPE E: 27/32 [21.43], 11/32 [8.73]
Models. Std. bushing and flatted shaft
w/screwdriver slot for 1/8 [3.18] panel.
MARKING
— Resistance value
— Amps
— Date code
ORDERING INFORMATION
MP15
MODEL
A
BUSHING AND SHAFT CONFIGURATION
A = Standard Flatted Shaft
NOTE:
For Additional Features: Submit detailed drawing information when ordering “non-standard” parts.
5
VALUE
Document Number: 66103
Revision 25-Aug-00
www.vishay.com
5
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