Tempco Custom Heater Manufacturing

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.

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