Medium−Density Cartridge Heaters (Spiral Cartridge Heaters)

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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	MΩ
Leakage current (cold):	< 0,5	mA
Max. working temperature allowed on sheath:	500	°C
Length tolerance (min. ± 2 mm):	±2	%



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