Hotohms™  Cartridge Heating device (MMTP- Series)
Product Feature:
-Diameter: 3~25 mm
- No limit on length: 20~2000 mm
- High power density: 20 W / cm2
- Low watt density cartridge heaters in brass or SS 304 sheath with watt density of 5 watt /sq.cm.
-Resistance heating wire  : NiCr 80/20 wire
-Sheath: stainless steel 304,321,316, Incoloy 800, Incoloy 840
-Maximum temp.: 800 degree Celsius
-Voltages available: 380V,240V, 220V,110V,36V,24V or 12V

Technical Parameters and QC Testing:
- Heating up time: ≤ 15 min
- Power Tolerance:± 10% (if rated power ≤ 100 W) -10% ~ +5 % or 10 W (if rated power > 100 W)
-  Leakage Current:
Cold leakage current ≤ 0.5 mA
Hot leakage current: I ≤ 5 mA
I = 1/6（tT×0.00001）
I— hot leakage current (mA)
t— heating length (mm)
T— working temperature (℃)
If there are several heaters in series, the hot leakage should be tested upon the full series circuit.
 
-  Insulation Resistance:
Cold insulation resistance ≥50 MΩ
Hot insulation resistance R ≥1 MΩ
R=「（10-0.015T）/t」×0.001
R— hot insulation resistance (MΩ)
t— heating length (mm)
T— working temperature (℃)
 
Other testing:
-          Withstand Voltage Strength
-          Power on-off
-          Thermal resistant
-          Overload capacity