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Rheostats
(EE - 513) |
Rheostats, Open type Single tube : Rheostats are made with a variety of resistance & current carrying capacity so as to satisfy every need. They are wound with heavely oxodised eurika resistance wire upon a porcelene tube dia 44 mm aprox. The tube is carrying upon bakalite ridder and the heavy duty sliding contact is of the phospor bronze with brass rod. 4 mm socket terminals are fitted, allowing for rheostat or potentiometer connection. Total resistance and maximum current capacity is marked on the slidder. Total
Permanent current loading should not exceed 75% of the marked values.Accuracy : The actual resistance of Rheostat shall be +20% -5% of the rated resistance as per our resistance chart. (as per ISI specification no. IS : 9051 S. No. 10.3)
TABLE NO. 1 |
Ube |
6" |
8" |
10" |
12" |
14" |
16" |
18" |
20” |
Length (cm) |
15 |
20 |
25 |
30 |
35 |
40 |
45 |
50 |
AMPS |
Ω |
Ω |
Ω |
Ω |
Ω |
Ω |
Ω |
Ω |
A. |
5.0 |
4.5 |
6.5 |
9 |
11 |
13 |
15 |
18 |
20 |
B. |
4.2 |
8 |
12 |
16 |
20 |
24 |
26 |
32 |
35 |
C. |
3.3 |
11 |
16 |
22 |
27 |
33 |
38 |
44 |
50 |
D. |
2.8 |
15 |
22 |
30 |
37 |
45 |
52 |
60 |
67 |
E. |
2.3 |
23 |
34 |
46 |
57 |
70 |
80 |
90 |
100 |
F. |
1.8 |
37 |
55 |
74 |
92 |
110 |
128 |
148 |
165 |
G. |
1.6 |
50 |
75 |
100 |
125 |
150 |
175 |
200 |
225 |
H. |
1.4 |
64 |
96 |
128 |
160 |
190 |
220 |
250 |
290 |
I. |
1.2 |
89 |
135 |
180 |
225 |
270 |
315 |
355 |
395 |
J. |
1.0 |
116 |
175 |
235 |
290 |
350 |
405 |
460 |
515 |
K. |
0.8 |
160 |
240 |
320 |
400 |
480 |
560 |
640 |
720 |
L. |
0.6 |
270 |
400 |
540 |
670 |
800 |
930 |
1070 |
1200 |
M. |
0.5 |
400 |
600 |
800 |
1000 |
1200 |
1400 |
1600 |
1800 |
N. |
0.4 |
660 |
975 |
1300 |
1625 |
1950 |
2275 |
2640 |
2950 |
O. |
0.3 |
1150 |
1700 |
2250 |
2850 |
3400 |
3950 |
4550 |
5150 |
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