Medium−Density Cartridge Heaters (Spiral Cartridge Heaters)

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Medium-Density Cartridge Heaters (Spiral Cartridge Heaters) Medium-density cartridge heaters produce their energy with a heating coil which is lead through hole ceramics. They are specially suitable for applications where no high surface watt density is needed or very long cartridge heaters are required.

Standard leads: 250 mm fibre glass insulated nickel lead, externally connected (type N)

If required we can produce the cartridges with a ground surface for a drill hole with H7 tolerance zone which is standard only for high-density cartridge heaters.

Ø 6,5 mm
1/4''
-0,02
-0,12
8 mm

-0,02
-0,12
10 mm
3/8''
-0,02
-0,12
12,5 mm
1/2''
-0,02
-0,14
16 mm
5/8''
-0,02
-0,16
20 mm
3/4''
-0,02
-0,20
min.L [mm] 160 160 200 300 400 500
max. L [mm] 1000 1000 1400 1800 2000 2000
max. Ampère 4 5 7 10 14 18
max. W/cm² 15 15 15 14 14 13
max. Volt 240 240 240 240 400 400
max. Watt (240 V) 900 1000 1400 2000 3400 4500
max. Watt (400 V) - - - - 5000 7000
Technical data and tolerances:
(No warranty claims can be derived from this table)
Wattage: +10% -10%
Resistance: +10% -10%
Dielectric stregth (voltage applied): 1500 V
Insulation (cold 500 V DC): >10
Leakage current (cold): < 0,5 mA
Max. working temperature allowed on sheath: 500 °C
Length tolerance (min. ± 2 mm): ±2 %


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