The main advantage in using a contactor is that the switch can be powered by a different and lower power source from the main contactor power supply. A contactor is a 3 pole electromechanical switch whose contacts are closed by applying a voltage to its coil.
Definite Purpose Contactors
3 pole contactor 120v coil wiring diagram. A contactor is a large relay usually used to switch current to an electric motor or another high power load. Ladder diagram basics 3 2 wire 3 wire motor control circuit duration. Wiring a contactor is a safe method for controlling electrical power. The contactor is specifically designed for motor control but can be used for other purposes such as resistive and. When the coil is energized the contacts are closed and remain closed until the coil is de energized. Use these tips to learn how to wire a contactor.
C common control wiring s separate control wiring enclosure type n open with metal mounting plate r open with din rail mounting adapter two and three pole 1550a contactors only g nema type 1 enclosed number of poles 1 single pole 2 two pole 3 three pole 4 four pole options blank individual pkg. The 8910dpa43v02 is a 3 pole definite purpose contactor with 3no contacts and quick connect terminal. Typically a contactor is activated by a remote switch or other controlling electrical device. Eaton cutler hammer c25dnf340 definite purpose 3 pole contactor rated at 40 amps with an ac coil must specify coil voltage above. Large electric motors can be protected from overcurrent damage through the use of. Contactors use 120 volt standard power to energize a magnetic coil which causes a set of internal contacts to close and provide higher power to the equipment.
Definite purpose contactor is ideal for heating air conditioning refrigeration data processing and food service equipment. Skip navigation sign in. This definite purpose contactor has double quick connect terminals metal base plate and is a direct physical and electrical replacement for the siemensfurnas 42cf35a contactor see here for details. These voltages must be electrically isolated from the standard 120 volts ac. Wiring a contactor by your own hands. Gl global listed 84.
Wiring a contactor by your own hands. Contactors are used to provide this isolation.
Gallery of 3 Pole Contactor 120v Coil Wiring Diagram
