Cartridge heaters
Metric-diameter cartridge heaters — electrical and dimensional limits
Electrical limits and length ranges of the standard two-lead design for metric diameters. Since resistance rises with temperature, all heaters are designed with resistance 5% below the calculated value.
- Dimensional tolerances: ±9% for lengths under 4½″; ±3% for 1/8″ and 3/16″; ±2% for other diameters
- Camber: no more than 0.015 ft per foot
- Wattage tolerance: +10% / −15% for 1/8″ and 3/16″, +5% / −10% for other diameters
- Special heaters with multi-core leads can be wired single or three-phase
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The price depends on the order configuration and is given in the technical and commercial offer.
Specifications
Electrical limits
| Nominal Ø, mm | 6 | 6.5 | 7 | 8 | 8.5 | 10 | 11 | 12 | 12.5 | 14 | 15 | 16 | 17 | 19 | 20 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. V | 240 | 240 | 240 | 240 | 240 | 240 | 240 | 240 | 240 | 480 | 480 | 480 | 480 | 480 | 480 |
| Max. A | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 6.7 | 4.4 | 9.7 | 9.7 | 23.0 | 23.0 | 23.0 | 23.0 | 23.0 | 23.0 |
| Min. W/in: 1″ | 100 | 100 | 100 | 65 | 65 | 65 | 65 | 40 | 40 | 35 | 35 | 30 | 30 | 30 | 30 |
| Min. W/in: 1½″ | 55 | 55 | 55 | 35 | 35 | 35 | 35 | 25 | 25 | 20 | 20 | 15 | 15 | 15 | 10 |
| Min. W/in: 2″ | 40 | 40 | 40 | 25 | 25 | 25 | 25 | 20 | 20 | 15 | 15 | 10 | 10 | 10 | 10 |
| Max. W: 120V | 525 | 525 | 525 | 800 | 800 | 800 | 800 | 1160 | 1160 | 2760 | 2760 | 2760 | 2760 | 2760 | 2760 |
| Max. W: 240V | 1050 | 1050 | 1050 | 1600 | 1600 | 1600 | 1600 | 2320 | 2320 | 5520 | 5520 | 5520 | 5520 | 5520 | 5520 |
| Max. W: 480V (3ph) | — | — | — | — | — | — | — | — | — | 10000 | 10000 | 10000 | 10000 | 10000 | 10000 |
Standard length limits
| Nominal Ø, mm | 6 | 6.5 | 7 | 8 | 8.5 | 10 | 11 | 12 | 12.5 | 14 | 15 | 16 | 17 | 19 | 20 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Actual Ø, mm | 5.90 ±0.05 | 6.40 ±0.05 | 6.90 ±0.05 | 7.90 ±0.05 | 8.40 ±0.05 | 9.90 ±0.05 | 10.90 ±0.05 | 11.90 ±0.05 | 12.40 ±0.05 | 13.90 ±0.05 | 14.90 ±0.05 | 15.90 ±0.05 | 16.90 ±0.05 | 18.90 ±0.05 | 19.90 ±0.05 |
| Min. L, mm | 22.2 | 22.2 | 22.2 | 22.2 | 22.2 | 22.2 | 22.2 | 22.2 | 22.2 | 22.2 | 25.4 | 25.4 | 25.4 | 25.4 | 25.4 |
| Max. L, mm | 914.4 | 914.4 | 914.4 | 1219.2 | 1219.2 | 1219.2 | 1524 | 1524 | 1524 | 1524 | 1828.8 | 1828.8 | 1828.8 | 1828.8 | 1828.8 |
Specifications are for information only and are confirmed for each specific order.
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