Edge Wound Resistors
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Motor Control Resistor
WATTS RANGE 150-400 |
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TYPICAL RESISTANCE VALUES TOLERANCE ±10%
CONTINUOUS CURRENT RATINGS AT 2800C TEMPERATURE RISE |
| OHMS |
0.5 |
0.6 |
0.75 |
1.0 |
1.3 |
1.7 |
2.2 |
2.8 |
3.5 |
4 |
5 |
6.5 |
9 |
13 |
16 |
| AMP |
28 |
24 |
20 |
16 |
16 |
14 |
11 |
11 |
9 |
9 |
8 |
6.5 |
5 |
3.8 |
3.2 |
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| Standard Construction : |
- High thermal Capacity grooved ceramic former,
- Open wire winding.
- Self locking robust terminals
- Phosphor bronze adjustable brands.
- Steel mounting brackets for panel mounting
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Edge Wound Strip
GRID RESISTORS |
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CONTINUOUS CURRENT RATINGS AND OHMIC VALUES |
| |
| AMPERS TEMP RISE0C |
D.C. OHMS±10% |
| 2800C |
BS 587 3750C |
IC-1 |
IC-2 |
IC-3 |
IC-4 |
IC-5 |
IC-6 |
| 46 |
58 |
.0562 |
.1266 |
.1978 |
.270 |
.340 |
.410 |
| 44 |
58 |
.071 |
.160 |
.251 |
.341 |
.430 |
.520 |
| 35 |
43 |
.100 |
.255 |
.351 |
.478 |
.605 |
.731 |
| 29 |
36 |
.123 |
.277 |
.436 |
.594 |
.748 |
.902 |
| 25 |
32 |
.177 |
.396 |
.622 |
.847 |
1.070 |
1.290 |
| 23 |
28 |
.219 |
.495 |
.772 |
1.051 |
1.330 |
1.610 |
| 20 |
25 |
.331 |
.703 |
1.100 |
1.490 |
1.890 |
2.290 |
| 16 |
21 |
.446 |
1.054 |
1.644 |
2.238 |
2.832 |
3.430 |
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CURRENT RATINGS REFER TP SPECIFIED TEMP. RISE IN FREE AIR.
MAX. CONTINUOUS TEMP. NOT TO EXCEED4500C |
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| Standard Construction : |
The Grid Resistance consists of helix of an edge wound resistance strip mounted on porcelain insulators which are located on a steel support acting also as mounting.
Maximum surface area of resistance material is exposed to the cooling air to give high thermal capacity and excellent ventilation. This enables ratings to be considerably increased where the loading is intermittent and of short duration.
The simplicity of design makes multiple assemblies into a bank possible. |
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| TYPE |
IC-1 |
IC-2 |
IC-3 |
IC-4 |
IC-5 |
IC-6 |
| FIXING CENTRES |
124 |
200 |
276 |
352.5 |
429 |
505 |
| OVERALL LENGTH |
146 |
222 |
298 |
374.5 |
451 |
527 |
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