Hi-Denisty Cartridge Heater (Metric Sizes) Specifications and Tolerances
Performance Ratings
Maximum Temperature: 1400°F (760°C)
Maximum Watt Density: 100-300 W/in2 (15.5-46.5 W/cm2) depending on heater size & operating temperature.
Note: The maximum operating temperature and the life expectancy of a cartridge heater is dependent on two main factors:
1. The maximum recommended sheath temperature (v1200°F for a standard heater)
2. The maximum ambient temperature for the termination selected. Consult Tempco if you require a recommendation for your application.
Dimensional Specifications
| Nominal Diameter | 6.5 | 8 | 10 | 12.5 | 16 | 20 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | (in) | mm | (in) | mm | (in) | mm | (in) | mm | (in) | mm | (in) | |
| Actual Diameter | 6.43 | -0.253 | 7.92 | -0.312 | 9.93 | -0.391 | 12.42 | -0.489 | 15.93 | -0.627 | 19.91 | -0.784 |
| Actual Diameter Tolerance | ±.05 mm (±.002″) | |||||||||||
| Minimum Length | 25.4 | -1 | 25.4 | -1 | 25.4 | -1 | 25.4 | -1 | 25.4 | -1 | 31.75 | (1-1/4) |
| Maximum Length | 914 | -36 | 914 | -36 | 1219 | -48 | 1524 | -60 | 1829 | -72 | 1829 | -72 |
| Length Tolerance Heaters up to 127 mm (5″) long | ±2.4 | (3/32) | ±2.4 | (3/32) | ±2.4 | (3/32) | ±2.4 | (3/32) | ±2.4 | (3/32) | ±3.2 | (1/8) |
| Length Tolerance Heaters over 127 mm (5″) long | ±2% of Sheath Length | |||||||||||
| Camber Tolerance Heaters to 305 mm (12″) long | .25 mm (.010″) per 305 mm (12″) of length | |||||||||||
| Camber Tolerance Heaters over 305 mm (12″) long | .50 mm (.020″) per 305 mm (12″) of length | |||||||||||
With some force, Tempco Hi-Density Cartridge Heaters will normally flex enough to fit into a straight reamed hole.
Electrical Specifications
| Nominal Diameter | 6.5 | 8 | 10 | 12.5 | 16 | 20 |
|---|---|---|---|---|---|---|
| Maximum Voltage | 260 | 260 | 260 | 380 | 480* | 480* |
| Maximum Amperage (see next line for exceptions) | 4.4 | 4.4 | 6.7 | 10.5 | 23 | 23 |
| †Maximum Amperage for Types C1C, C1D, C2C, C2D, CS, F, M3, R1B, S1B, S2B, SA, W, & W3 & Terminations | 3 | 3 | 5.5 | 7.6 | 9.7 | 9.7 |
| Maximum Wattage at 260V | 1140 | 1150 | 1740 | 2730 | 5980 | 5980 |
| Maximum Wattage at 380V | — | — | — | 3990 | 8740 | 8740 |
| Maximum Wattage at 480V | — | — | — | — | 10,580 | 10,580 |
| Wattage Tolerance | Plus 5%, Minus 10% | |||||
| Resistance Tolerance | Plus 10%, Minus 5% | |||||
*480V when applicable. Consult Tempco.
†Current carrying capacities are for ambient temperatures up to 482°F (250°C) with mica insulated lead wires.
