Use these tips to learn how to wire a contactor. Gl global listed 84.
Square D 8903 Sqg2v02 Lighting Contactor 3 Pole 100 Amp 120v Coil Nema 1 New
3 pole contactor 120v coil wiring diagram. Definite purpose contactor is ideal for heating air conditioning refrigeration data processing and food service equipment. Wiring a contactor by your own hands. 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. The 8910dpa43v02 is a 3 pole definite purpose contactor with 3no contacts and quick connect terminal. These voltages must be electrically isolated from the standard 120 volts ac. Skip navigation sign in.
Typically a contactor is activated by a remote switch or other controlling electrical device. When the coil is energized the contacts are closed and remain closed until the coil is de energized. Wiring a contactor is a safe method for controlling electrical power. 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. Ladder diagram basics 3 2 wire 3 wire motor control circuit duration. Eaton cutler hammer c25dnf340 definite purpose 3 pole contactor rated at 40 amps with an ac coil must specify coil voltage above.
Wiring a contactor by your own hands. 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. A contactor is a large relay usually used to switch current to an electric motor or another high power load. The contactor is specifically designed for motor control but can be used for other purposes such as resistive and. Large electric motors can be protected from overcurrent damage through the use of. 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.
Contactors are used to provide this isolation. A contactor is a 3 pole electromechanical switch whose contacts are closed by applying a voltage to its coil.