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How do you connect float switches for a single phase motor through contactor and Over Load Relay?
Wiki User
∙ 8y ago
you would wire a float switch into the control circuit i.e, the contactor coil (which is relatively low current but rated at least for the control voltage,, in most cases 120VAC). also in the same circuit would be the overload contacts. if the overload trips and/or the float switch opens then voltage is removed from the contactor coil
Wiki User
∙ 8y ago
Wiki User
∙ 9y agoThis configuration will be using the same coil voltage on the contactor as that of the supply voltage. Take a wire from one of the line terminals L1 to one side of the contactor coil. Take another wire from the second line terminal L2 and put it to one side of a N.C. contact on the overload block.
For pump shut off on level rise; from the other side of the N.C. contact on the O/L block take a wire to the N.C. terminal on the float switch. From the other side of the N.C. contact on the float switch terminal connect the wire to the other side of the coil. When the water level rises up to the float it will tip and drop the motor's contactor off line.
For pump shut off on level drop; from the other side of the N.C. contact on the O/L block take a wire to the N.O. terminal on the float switch. From the other side of the N.O. contact on the float switch terminal connect the wire to the other side of the coil. When the water level drops, the float will hang straight and drop the motor's contactor off line.
As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself,
on electrical circuits, equipment or appliances
always use a test meter to ensure the circuit is, in fact, de-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
Wiki User
∙ 8y agoTake a wire from one of the line terminals L1 to one side of the contactor coil. Take another wire from the second line terminal L2 and put it to one side of a N.C. contact on the overload block. From the other side of the N.C. contact on the O/L block take a wire to the N.O. terminal on the float switch. From the other side of the N.O. contact on the float switch terminal connect the wire to the other side of the coil. This configuration will be using the same coil voltage on the contactor as that of the supply voltage. When the liquid level rises the N.O. contact on the float switch will close and draw the contactor in. When the contactor closes the motor will start.
Wiki User
∙ 8y agoTake a wire from one of the line terminals L1 to one side of the contactor coil. Take another wire from the second line terminal L2 and put it to one side of a N.C. contact on the overload block. From the other side of the N.C. contact on the O/L block take a wire to the N.O. terminal on the float switch. From the other side of the N.O. contact on the float switch terminal connect the wire to the other side of the coil. This configuration will be using the same coil voltage on the contactor as that of the supply voltage. When the liquid level rises the N.O. contact on the float switch will close and draw the contactor in. When the contactor closes the motor will start.
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Can a 3 phase contactor be wired for single phase?
Yes, L1 of the single phase supply is terminated under terminal L1 of the three phase contactor. L2 of the single phase supply is terminated under terminal L2 of the three phase contactor. A conductor from output terminal T2 is then taken to input terminal L3. The single phase load is then connected to the contactor's output terminals T1 and T3. This incorporates all three of the overload blocks on the contactor into the control circuit. With the overloads in the control circuit, if an overload occurs the magnetic contactor's holding coil will drop out and take the load off line.
How do you wire up a 208v single phase motor with micro switch?
if you are using the pressure switch to control a 3phase pump chances are it already has a magnetic starter and a single pole control circuit i have seen small 3phase air compressors with the contacts driven right off the diaphragm bigger ones usually have 110 volt controls i would be concerned about the current rating of the switch if you are trying to switch the motor directly there are many single phase compressors that run directly from the pressure switch
Does Square D make a single pole contactor with a 24 volt coil?
Yes, I just brought one today for $13.
How do you start a motor?
Be it three phase or single phase, larger motors should be started with a magnetic contactor.
Can you use three phase thermal overload relay in a single phase system?
Yes, when using a three phase contactor on single phase, the three phase overload block can be used. The wiring of the contactor consists of taking L1 of the supply and connecting it to L1 of the contactor. The load is connected to T1 on the bottom of the overload block. L2 of the supply is taken to L2 of the contactor. Instead of connecting the T2 to the load, the conductor is taken back to the top and connected to the contactor in position L3. The other side of the load is connected to T3 on the bottom of the overload block. The overload block has three N.C. contacts, one for each leg of L1, L2 and L3. These three contacts are wires in series to the stop - start circuit. Years ago on old schematic diagrams these contacts used to be placed on the up stream side of the magnetic starter's coil. When the overloads tripped the voltage was left on the control circuit which was found to be dangerous for trouble shooting. Now the overload contacts are positions on the beginning of the start- stop circuit so that when a overload trips, the whole stop - start circuit becomes de energized.
Can a 3 phase contactor be wired for single phase?
Yes, L1 of the single phase supply is terminated under terminal L1 of the three phase contactor. L2 of the single phase supply is terminated under terminal L2 of the three phase contactor. A conductor from output terminal T2 is then taken to input terminal L3. The single phase load is then connected to the contactor's output terminals T1 and T3. This incorporates all three of the overload blocks on the contactor into the control circuit. With the overloads in the control circuit, if an overload occurs the magnetic contactor's holding coil will drop out and take the load off line.
What is the funnction of data switches?
the devices which connects different computer systems through a single physical conections.
What are DVI KVM switches used for?
DVI KVM switches are used for a number of things. They are used to connect multiple computing devices to a single keyboard, mouse and monitor. They have PS/2 and other USB keyboard mouse connections.
How do you wire up a 208v single phase motor with micro switch?
if you are using the pressure switch to control a 3phase pump chances are it already has a magnetic starter and a single pole control circuit i have seen small 3phase air compressors with the contacts driven right off the diaphragm bigger ones usually have 110 volt controls i would be concerned about the current rating of the switch if you are trying to switch the motor directly there are many single phase compressors that run directly from the pressure switch
Will a double pole switch work where only a single pole is needed?
Yes, make sure you wire it correctly. Some switches connect across the screws and some connect like a conventional switch where the screws are below one another.
What are the uses of double pole switch?
Equivalent to two single pole double throw switches controlled by a single mechanism. Think about 2 switches controlled at the same time with 4 possible connections. 2 connections when up, 2 connections when down.
Suppose you have a single light that can be turned on and off by 2 separate switches if you flick both switches at exactly the same time what will happen?
The single light will not come on. The traveler legs from the two switches will have to be opened simultaneously if they are not then you will get a flick of light.
How do you wire a single phase contactor controlled by a pir in a lighting circuit?
Relatively simple. There are two power contacts, you wire the two wires for the line you want to interrupt or connect to these contacts. this is for the simplest type, SPST, one set of contacts to switch a power line on when the control signal is on. There are more complicated contactors with multiple sets of contacts. There are two connections for the control circuit which are typically low voltage AC or DC. Connect these to the control signal, ie, the signal you will use to turn the contactor on or off.
What is the purpose of configuring a switch port as a trunk port?
The idea of configuring a switch port as a trunk port is to allow the switch to receive and send data from several VLANs on a single port. Otherwise, a separate port would be required for every VLAN, if, for example, you want to connect two switches among themselves.The idea of configuring a switch port as a trunk port is to allow the switch to receive and send data from several VLANs on a single port. Otherwise, a separate port would be required for every VLAN, if, for example, you want to connect two switches among themselves.The idea of configuring a switch port as a trunk port is to allow the switch to receive and send data from several VLANs on a single port. Otherwise, a separate port would be required for every VLAN, if, for example, you want to connect two switches among themselves.The idea of configuring a switch port as a trunk port is to allow the switch to receive and send data from several VLANs on a single port. Otherwise, a separate port would be required for every VLAN, if, for example, you want to connect two switches among themselves.
Is it possible to have millions of switches on a single computer chip?
Yes it is.
What does Ethernet cable do?
allows a single computer to connect to a LAN allows a single computer to connect to a LAN
Does Square D make a single pole contactor with a 24 volt coil?
Yes, I just brought one today for $13.
