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RHEOSTAT
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ZES 221. Rheostat-Sliding Contact : Comprising a layer of resistance wire wound on an insulating heat resistance tube (Porcelin) which is supported by cast metal feet. A sliding contact and three 4mm socket terminals are provided, one terminal being connected to the sliding contact and the other two to the ends of the winding, enabling the unit to tbe used as rheostat or potentiometer. |
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TYPE |
MAX |
Max |
Tube dia mm |
Tube Length mm |
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(Amps) |
(Ohms) |
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(a) |
6.5 |
4.4 |
43 |
200 |
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(b) |
5.0 |
11 |
43 |
300 |
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(c) |
4.2 |
12 |
43 |
200 |
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(d) |
4.2 |
20 |
43 |
300 |
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(e) |
3.3 |
16 |
43 |
200 |
|
(f) |
3.3 |
27 |
43 |
300 |
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(g) |
2.3 | 56 | 43 | 300 | |
(h) |
1.6 | 50 | 43 | 150 | |
(i) |
1.6 | 100 | 43 | 250 | |
(j) |
0.8 | 160 | 43 | 150 | |
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(k) |
0.8 | 240 | 43 | 200 | |
(l) |
0.3 | 1700 | 43 | 200 | |
(m) |
0.3 | 2850 | 43 | 300 | |
(n) |
1.0 | 365 | 56 | 300 | |
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Note : Other size also available on request. |
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ZES 222. Rheostat Sliding : Same as Cat no.99 but wound on viterous enamelled hexagonal steel tube instead of porcelin tube to make it unbreakable. |
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ZES 223. Rheostat, Single Tube, Protected : Variable up to 345 ohms at 1.2A rating for use as a series resistor or a potentiometer. Enclosed type, in metal case with windings on porcelain former 350 mm long x 56 mm dia. Three 4mm socket terminals and four mounting lugs tapped. |
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