Can a 120V solid state relay stands 240V?
If you are looking of a relay that will allow 240V, many suppliers sell a SSR that will handle up to 280V AC. Most are triggered by 3-32v dc.
Just google: solid state relay OR solid state contactor
If 120V is present on a120V relay coil what will the voltage reading be across the closed set of relay contacts on a 120V circuit?
0v The relay is designed to act as a switch when voltage is applied across the coil. The contacts open or close but only pass through whatever is connected to those terminals. <<>> When a relay coil is energized the relay's contact change status. The closed set of contacts will open. The 120 volt circuit that is connected will turn off. As to the voltage at the contact terminals, it depends on where you are… Read More
Yes, it can! Read More
In the US, it is between 110V Min and 120v Max Read More
120V Read More
Is there a device that will enable or energize when a voltage range of 20V to 110V is applied that can be used to connect a shower fan to the dimmer switch and activate the fan when the light is on?
Need more info to give you the most usefull answer. However, generically speaking, sounds like what you need is a 120v relay. Put the relay output contacts in series with the fan (aka the load) then wire the relay coil in parallel to the light bulb power. This will make the load come on when the light is powered on. Tip, if the fan is driven by an induction motor (most are, if it has… Read More
No. The neon sign is fed by a step-up transformer. Primary side 120V, secondary side 7500V. If you applied 240 to the primary side you would get 15000 volts on the neon tube. A flash over and then nothing. If you can find a transformer from 120V to 240V or 240V to 120V then you are good to go. Connect 240V to 240V side and you will get 120V out the other, connect the 120V… Read More
Is there an electrical switching device for residential use that will either run the furnace or the air conditioner to avoid increasing electrical service size?
A $10 120v or 24v relay tied into the controls of both units will do it, if the electrician is smart enough to know how to wire it in. Read More
120v or 240v. 120v is one leg of the main panel, and 240 is two legs of the main panel. 120v is lights,outlets. 240v, dryer,stove. Read More
This is hard to say as it is up to the manufacture as to whether it is compatible. on the specification plate it should state the operating frequencies. if i had to say yes or no and the appliance is the latest model i would say yes it is compatible as these days manufactures allow for those tolerances. Read More
Yes, 115V 60Hz will work in a 120V 60Hz power supply. Read More
Depends if the Tv has an internal cirquit to adapt on both frequencies. Read More
No you cannot plug a 100v into a 120v outlet, it will fry whatever the product you are plugging up. Read More
p = v * i 75w = 120v * i i = 75w / 120v i = .625A v = i * R 120V = .625A * R R = 120V / .625A R = 192 ohm Read More
The answer is YES Your lamp will only draw the amps that it needs from the receptacle. Read More
You can find a 120V power cable at your local hardware store. Look in the section under extension cords. Read More
You are building a new house and trying to decide between 120v and 240v which is better More practical?
In the US, both 120v and 240v will be needed for your home, as different appliances need different voltages. Your TV needs 120V, while your electric dryer and stove will need a 120V/240V supply. If you have an electric water heater, or central AC unit, they will need a 240V supply. Read More
The number of Volts in a residential service drop in the US is either 120V 2 Wire, 120V-208V Network, or 120-240V 3 Wire. A 120-208V Network service is not single phase, but its 120V portion is. Read More
I think I understand what you are asking. 3-phase motors usually are equipped with a starter or contactor, since all 3 hot wires need to be switched. The control voltage that runs the starters is 120V, because it's safer and also 120V switches and relays are cheaper. You would have a 480-120V transformer (called a control transformer) in the starter box to provide the 120V "control voltage". So the arrangement you describe would have two… Read More
How do you change a double pole 240v breaker to a single pole 120v breaker to allow a regular 120v receptacle to work?
See Discussion Page Read More
Because they are "in-phase". In order to get 240v, you need two 120v Alternating Current lines that are 180° out of phase, that is, opposite phases. Only when one line is +120v and the other -120v will you see 240v between the wires. Read More
You cannot use 2-120v outlets to power a 240v dryer. You can convert a 240v dryer outlet to power 2-120v outlets if they are supplied with a neutral. This requires a competent electrician. Do not do this yourself. Read More
If it is a six wire motor go to http://apps.motorboss.com/connections/108323.pdf Read More
120V appliance will not work on 220V. Use an instrument transformer or voltage regulator to adjust the high voltage to the desired level. Read More
Yes. The bulb will be slightly dimmer, but will last much longer. Most 145V bulbs are intended to be used in 120V exit signs. The reason for the higher voltage rating on the bulb is because it will last a long, long time when used at 120V. Read More
How do you hook the 4 wires which are 2 whites 1 red and 1 black coming from the back of a generator to an outlet for 120v and 240v?
The whites are Neutrals or Grounds and the Red and Black are each 120v. One white and either the black or red for 120v and one white, both the red and black for 240v. Read More
Can you take single phase of 120V with a hot wire and a neutral step up to 480v and then step down to 2 phases of 120V or do you have to input 2 phases of 120v to get 240V out?
Theoretically that can be done with transformers, but the power available would still be limited by the circuit breaker on the original 120 v supply. Read More
If you put a 60W 120V bulb in a 120V lamp that has a transformer for 240V and plug it into a 240V outlet will it work or blow the circuitry?
Off hand no but your explanations are not clear as to who is doing what to whom,, Read More
Your 120V bulbs will only work if you connect the plug to a 220V-to-120V transformer, but you will probably want to replace the bulbs with 220V bulbs. Read More
A 220v motor uses two 120v legs. But for your question, no, because it needs another 120v wire to run. Read More
Yes, assuming the wall outlet produces 120V 60 Hz at at least 4 watts. Read More
12 ohms Read More
no because the tv can only pick up siginals at 60Hz if the signal is 50 Hz it won't pic it up. Read More
You can use 120v 10a 125w cable projectors 110-240v power in India. Read More
There is a current of 0.83 A through a light bulb in a 120 V circuit What is the resistance of this light bulb?
V=IR 120V = 0.83A * R R= (120V)/(0.83A) R= 144.57 Ohms Read More
In a home that has 120 Volt service there is an electric appliance that has a resistance of 12 ohms How much power will this appliance consume in watts?
120V / 12 ohms = 10amps. 120V * 10amps = 1200 Watts. Read More
"As far as charging the Toyota Camry Hybrid, you can plug it into any one of the standard 120V plugs.So as long as it can surge a 120V plug, then it can be used." Read More
Generally 220v anything works easier or with less effort so can be cheaper to run. Appliances that run off 240V draw less current than 120V appliances so lighter wiring and fixtures can be used. However, 240V is more prone to arcing than 120V. Also, 240V is more likely to blow you away than 120V, whereas 120V is more likely to "grab" (Cause your muscles to involuntarily contract, i.e. making your hand grab a conductor) you… Read More
a relay switch can be used to control one voltage from another(e.g. 24 volt controlling a 120v circuit), or controlling multiple functions and circuits from one voltage switch or location. advantages to relays are that the size of conductor can be greatly reduced with a lower voltage(cost and ease of installation) and consumer convienience(one switch for 100 lights or one photocell controlling an entire parking lots lighting even with a rating of 15 amps) Read More
The potential of 208 volts is a three phase voltage. On a three phase distribution panel you can obtain 208 volts from any two adjacent breakers, just like 240 volts on a single phase panel. L1 - L2 = 208V, L2 - L3 = 208V, L3 - L1 = 208V. L1 - N = 120V, L2 - N =120V, L3 - N = 120V. 208V/1.73 = 120V. Read More
you get an adapter Read More