Rheostat PRN-3/322
Indosaw Rheostat PRN-3/322
Three phase version with resistance coils 3×320 VA. Sliding pieces are mechanically connected.
The Table-Top Variable Resistor is a versatile tool for controlling DC and AC currents or voltages in electrical applications. Ideal for labs, education, and more, it functions as both a rheostat and potentiometer, offering precise, reliable performance. Built to international standards, it is essential for professionals and educators.
Range :3 X 1Ω - 3 X10000Ω, 3 X 320W
| Resistance | Imax(A) | |
| Permanent | 15 Min | |
| 3 x 1 | 3 x 18 | 3 x 25 |
| 3 x 3.3 | 3 x 10 | 3 x 14 |
| 3 x 10 | 3 x 5.7 | 3 x 8 |
| 3 x 33 | 3 x 3.1 | 3 x 4.4 |
| 3 x 100 | 3 x 1.8 | 3 x 2.5 |
| 3 x 330 | 3 x 1.0 | 3 x 1.4 |
| 3 x 1000 | 3 x 0.57 | 3 x 0.8 |
| 3 x 3300 | 3 x 0.31 | 3 x 0.44 |
| 3 x 10000 | 3 x 0.18 | 3 x 0.25 |
Common Technical Data
| Resistance tolerance | ± 10 % |
| Allowed permanent and intermittent load at 23°C ambient temperature | see tables |
| Insulation resistance | > 3 × 107 W |
| Earthing resistance | < 0.1 W |
| Allowed voltage at terminals | max. 600 V |
| Allowed voltage between terminals (applied to PRN 3/322) | max. 700 V |
| Breakdown voltage against casing | > 2500 V~ |
| Protection degree | IP 20 |
| Construction according to | EN 61010-1 |