PTC Air Heater

PTCairheaterisPTCheatingelementwithahighpowerunderthestrongairflow.TheairflowfromthefangoesthroughthefinsofPTCheaterandcreatesthestrongforcedconvection. Application electriccarheatingsystem、airconditi

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PTC Air Heater

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yl@hn-yongli.com

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PTC Air Heater

Graphic details

PTC air heater is PTC heating element with a high power under the strong air flow. The air flow from the fan goes through the fins of PTC heater and creates the strong forced convection.

Application

electric car heating system、 air conditioner heating system, room heater, disinfection cabinet, cloth dryer, integrated ceiling, electric dryer

Features

Automatically stable temperature, High heat exchange efficiency, Very stable Power,Easy assembly, Long service life, Safety and reliability, No fire.

Using Tips

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℃～25℃.
Considering of the thermal expansion, there should be some gap（above 5mm）around the PTC heaters.
For heaters of surface-electrified type, it should be aware that safety spacing is necessary to keep away from body, metals and frost.
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.

According to the safety requirements from the end user, we design two kinds of PTC air heaters: electric PTC air heater （MZRB） and insulated PTC air heater （MZRD）.

1 、electric PTC air heater （MZRB）

The electric PTC air heater （MZRB） consists of the PTC elements and metal waved fin plates that directly glued beside the PTC chips. It is not insulated heater but it is with a higher heat generation. Please pay attention to electricity safety during use.

Product structure diagram

5.1
5.2
5.3

Part Numbering

MZ	RB	2000W	220V	60HZ
1	2	3	4	5

PTC Code
Electric PTC heater
Power
Rated Voltage
Frequency

Specification：

L （mm）	a multiple of 24mm，such as 24, 72, 96,120,144 etc
W（mm）	Adjusted by the thickness of PTC chips and fin plates.
H （mm）	15mm / 24mm
Rated Voltage（V）	12V~800V
Power （W）	100W~3000W Adjustability according to size structure.
We can customize upon the customer’s requirements. The thermostat and hair harness can be assembled. The plastic or metal frame are available .

2 、The insulated PTC heater （MZRD）

The insulated PTC heater （MZRD）is much safer than electric type, because the PTC chips packed by insulation film or other insulation material, then insert into the aluminum shell with the waved fin plates. The insulation layer makes the electrical safety, but relatively reduces the heat efficiency.

Product structure diagram

Part Numbering

MZ	RD	2000W	220V	60HZ
1	2	3	4	5

PTC Code
Insulated PTC Heater
Power
Rated Voltage
Frequency

Specification：

L （mm）	a multiple of 24mm，such as 24, 72, 96,120,144 etc
W （mm）	Adjusted by the thickness of aluminum pipes and fin plates
H （mm）for Fin plates	15mm / 24mm
H (mm) for Aluminum pipes	20mm / 30mm
Rated Voltage（V）	12V~800V
Power （W）	100W~3000W Adjustability according to size structure
We can customize upon the customer’s requirements. The thermostat and hair harness can be assembled. The plastic or metal frame are available .

Power-Wind Speed and Power-Ambient Temperature （example）

5.7

Standard test wind rate 4.5m/s, ambient temperature 25℃

Durability of PTC Heaters (Decay Rate)

5.8

Decay rate is used for evaluating the durance of PTC heaters. According to Industry Standard, the decay rate should ≤ 10% after working for 1000 hours. Here above is the decay rate chart of our standard Insulation PTC heaters.

Electric PTC Air Heater