| 1.Type 1)Non-Surfce-Electrified PTC heater Series Non-Surfce-Electrified
PTC heater Series is a kind of large power, with wind blowing, and
radiator uncharged PTC heater. PTC element is fixed in aluminium
tube and keeps insulated with the aluminium tube, alar or
tooth-groove radiating fin is fixed on the aluminium tube. The
large-power heater has a series of virtues such as safety,
reliability, stable power, no sound, long life, excellent
machinery, intension and so on. Because of good safe performance,
now Non-Surface-Electified PTC heater is mainly used in large-pawer
house heater such as cold/warm air-condition, fan heater,
disinfecting cabinet, dryer and so on. 2)Surface-electrified PTC Ripple Heater Series Surface-electrified PTC Ripple Heater Series is a kind of large
power heater that can auto- control temperature and save
electronic, it is made up of PTC elements and radiator of waves
frame, and hot wind can go through on both sides of general PTC
elements. The heater with a lot of virtues such as giving out large
heat, stable power, using expediently, long life, high reliability,
without bright flame. lt is now widely used in house heating
instrument such as air-adjuster, wet wipe off, dryer, suti-dryer,
moveable heater and automobile etc. 2.Application & Characteristics The PTC heater is composed of several PTCR ceramic components
adhered to wave Al tube by high temperature. It features in low
thermal resistance and high coefficient of heat transmission.
Besides, when the fan blocked, power of PTC heater would drop down
sharply due to insufficient dissipation. Meanwhile surface
temperature of heater would remain at the level of curie
temperature, which is usually 220℃, so that potential accident
would be eliminated. Now it is extensively applied in home
aircondition,commercial aircondition as well as household heating
appliances. 3.Attention for use 1. Since the power of PTC heater is greatly influenced by ambient,
the ideal test measure is to fix it in a complete machine under
standard ambient conditions. In practice, we are used to do the
test after adjusting relative parameters of simulate air passage by
confirmed sample in a complete machine, with ambient temperature at
20±2℃; 2. Considering of the thermal expansion, there should be some gap
(above 5mm) around the PTC heaters; 3. For heaters of surface-electrified type, it should be aware that
saftey spacing is necessary to keep away from body, metals and
frost. Comparatively, the surface-insulation type is more reliable
in safety. 4. When heaters connected to three-phase supply, the neutral point
should be connected with null line so that terminal voltage would
not overtop due to imbalance. 4. The relations among power of PTC heaters, wind rate and ambient
temperature Example: MZFR-J1230 220V 1200W ( Standard test wind rate 4.5mm,
Ambient temperature 25℃) 5.Durability of PTC Heaters(Decay Rate) Decay rate is used for evaluating the durance of PTC heaters.
According to Industry Standard,the decay rate should ≤10%after
working for 1000hours. Here below is the decay rate chart of our
standard insulation PTC heaters.
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