The working principle of the infrared heating tube is actually very simple, that is, after the heating wire is energized, the electrical energy is converted into light energy to radiate infrared rays, and after the object absorbs the energy of infrared photons, the internal molecular resonance friction heats up, which plays a role in heating it. Its operation method is also very simple, that is, it can be powered on. Customers often ask if the infrared heating tube has positive and negative poles?  Or whether it distinguish between neutral and live? How to connect the 220V heating tube to the 380V voltage? I will briefly talk about several wiring methods of infrared heating tubes.

When the heating tube with a rated voltage of 220V is connected to 220V AC power, it is not divided into neutral and live wire, and the wiring can be directly connected. Make sure to tighten the terminal screws and make sure that they are well insulated.

When connecting 380V industrial power, you must first confirm the voltage 、neutral and live wires. It is necessary to pay attention to the rated voltage of the heating tube. If the voltage is confused, the heating tube will be burned out or the power will be insufficient.

First of all, let's introduce the wiring method of the rated voltage is 220V heating tube. The 220V wiring method is also called "star connection". First divide the heating tubes into three groups of equal number, then connect one end of the three groups of heating tubes to a common point, and then connect the other ends of the three groups of heating tubes to the three power lines of the three-phase power supply. Please take protective measures. This process must ensure that the power and quantity of the three groups of heating tubes are the same. Otherwise, the center point will be offset and the heating tube will burn out.

Star connection method: (when the lamp voltage is 220V)

The rated voltage is 380V heating tube wiring, also known as "delta connection". When wiring the 380V heating tube, first divide it into 3 groups according to equal numbers, then connect the three groups of heating tubes end to end, there are three wire contacts between the heating tubes, and then connect the three wires of the three-phase power supply to the three contacts, Then take protective measures. In this process, the power and quantity of the three groups must be the same.

Delta connection: (when the lamp voltage is 380V)

Note: In order to ensure the safe use of infrared heating tubes, the following precautions should be observed (if you are not professional enough, find an electrician, and let professional people do professional things):

(a) Disconnect the device from the power source before removing or installing the infrared heating tube.

(b) It is best not to touch the quartz tube with bare hands. If grease or chemical compounds are deposited on the quartz, briefly clean it with a cloth dampened with alcohol before lighting it.

(c) Don’t stare at the lamp for a long time during operation.

(d) Be careful not to exceed the allowable temperature indicated in the technical description.

(e) Check the lighting position of the lamp as specified in the technical documentation.

(f) Avoid using over voltage as this will seriously affect the life of the lamp.

(g) Place the lamp in a device specially designed for the lamp type and rating.

(h) Use fuses according to the type and amperage rating of the lamp.

(i) Protect the tube from shock and vibration even when it's cold.

(j) To ensure the longevity of infrared heating tubes, protect them from contaminants such as salt, ammonia, cement dust an so on.