The A1 and A2 marked on the AC contactor are its working coils. They are used to connect to the power supply. They have a certain voltage level and are generally marked next to it, such as: 220V, if you connect it to 220V power supply, it will work. Contact Just closed. A1 and A2 on the AC contactor are the two wiring terminals of the coil of the contactor. Through them, the coil of the AC contactor is connected to the power supply, so that the coil of the contactor can be energized and the AC contactor can work. Both terminals Connected to the control circuit. The main contact points L1, L2, L3 on the AC contactor are respectively connected to the power supply through a three-phase switch, and the main contacts T1, T2, T3 are connected to the load side, that is, the three pairs of main contacts are connected to the main circuit. NO (NORMALOPEN) is a normally open contact, which is usually disconnected when it is not energized (normal or natural). NC (NORMALCLOSE) is a normally closed contact, which is usually closed when it is not energized (normal or natural). The auxiliary contacts NO and NC are connected to the control circuit, and the auxiliary normally open and normally closed contacts can be used for self-locking and interlocking control. Coils A1 and A2 are the two terminals of the contactor coil, which are connected to the AC power supply. When the power is turned on, electromagnetic attraction is generated, which makes the contact system of the contactor act. The coil is 220v: A1 is connected to fire and A2 is connected to zero or A1 is connected to zero and A2 is connected to fire. If the contactor coil is 380v: A1 and A2 are connected to different phase wires. If you want to know more about the products in FLOW Vape, please click the product details to view parameters, models, pictures, prices and other information about FLOW Vape. And deliver to the destination just cost 7-15davs.We are a legal e-cigarette trader in China. We can provide you with FLOW Disposable Vape. Here you can find the related products in FLOW Vape, we are professional manufacturer of FLOW Vape. We focused on international export product development, production and sales. We have improved quality control processes of FLOW Vape to ensure each export qualified product.
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AC contactor a1 and a2 mean
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