What Is A1 And A2 On A Contactor - 21 Images

They are usually connected in series with the overload trip norm. September 3 2018december 8 2018. The function is the same.

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Since a contactor is an ac device the ve and ve terminology is not correct.

What is a1 and a2 on a contactor. Is the polarity of terminal a1 and a2 from contactor tesys green is a1 and a2 or can customer connect any polarity in the a1 and a2. Normaly not seen anything diffrent a1 and a2 are the coil windings that will operate the contactor or relay. Closed contact and any stops or limit stop switches. When electric current passes through the coil.

Energizing terminals a1 and a2 magnetizes the electromagnet coil causing all three switch contacts to simultaneously close sending three phase ac power to the motor. The coil gets energizes and start producing magnetic field. A wiring diagram is a simplified standard pictorial depiction of an electric circuit. De energizing the coil causes it to de magnetize releasing the armature and enabling a return spring inside the contactor to snap all three contacts to the open off position.

Your question is not very clear but a1 and a2 are the terminals of the coil of the contactor and supplying them with the correct voltage will cause the coil to become electromagnetic and thus operate the contactor and close or open the various contacts. This is the heart of the contactor the magnetic coil makes electromagnetic field when rated supply reached on the contacts of the coil denoted as a1 and a2. Obtaining from factor a to aim b. Read also dol starter control diagram.

Literally a circuit is the course that enables electricity to circulation. It reveals the parts of the circuit as simplified shapes and also the power and also signal connections between the devices. A1 a2 terminals are the coil terminals. Variety of contactor wiring diagram a1 a2.

Open auxy contact on contactor will short the start button on contactor energising to keep coil energised via all stops in series. Contactor wiring diagram a1 a2 a novice s overview of circuit diagrams a first take a look at a circuit layout could be confusing but if you can read a metro map you can read schematics.