On your model number the figures after 400MH are the voltages for that ballast. A 40 represents 240 volts, 12 represents 120 volts and yours 48 represents 480 volts. Looks like this is a industrial fixture and not meant for residential use.
No, you cannot wire a 120 volt ballast to a 347 volt circuit. The ballast is designed to operate at a specific voltage, in this case 120 volts, and connecting it to a higher voltage circuit like 347 volts can damage the ballast and pose a safety hazard. It is important to match the voltage rating of the ballast to the circuit it will be connected to.
You don't. A ballast with a 347 volt input is a commercial ballast. The 347 volts comes from a 600 volt three phase four wire Y system. You can change the ballast out to a 120 volt and rewire the unit but in most cases it is cheaper to buy a completely new lighting fixture.
Wiring 347 volts to the 120-volt tap on a multi-tap ballast can cause serious damage to the ballast and connected fixtures. The excessive voltage can lead to overheating, insulation breakdown, and potential failure of the ballast components. This may also pose a fire hazard and could damage the connected lamps or fixtures. It's crucial to always match the voltage rating of the ballast with the supply voltage to ensure safe and proper operation.
NO! a 120-277 electronic ballast requires one "hot" wire and a neutral from either a 110V or 277V supply. If you supply it with two "hot" wires from a 208 V supply, it will instantly burn up.Yes. A ballast with a specification range of 120 volt to 277 volt will work on 208 volt. These ballast use intelligent voltage sensing technology and it does not matter if the source is a hot and neutral or two (2) hots. Don't believe it? Call a ballast manufacturer instead of giving incorrect answers.
The way a metal halide light is set up, there's a transformer in it called a "ballast." The ballast powers the bulb. You can wire ballasts to a lot of different voltages--which voltages you can use are dependent on the ballast in question--but 120v single phase is almost always one of the choices. So yes, you can do it.
No, you cannot wire a 120 volt ballast to a 347 volt circuit. The ballast is designed to operate at a specific voltage, in this case 120 volts, and connecting it to a higher voltage circuit like 347 volts can damage the ballast and pose a safety hazard. It is important to match the voltage rating of the ballast to the circuit it will be connected to.
Yes, but it will not work.
You don't. A ballast with a 347 volt input is a commercial ballast. The 347 volts comes from a 600 volt three phase four wire Y system. You can change the ballast out to a 120 volt and rewire the unit but in most cases it is cheaper to buy a completely new lighting fixture.
It sounds like you are talking about a two tube eight foot fluorescent fixture. Open the fixture up and you will find a ballast that has probably two yellow wires, two blue wires, two red wires and a black and white wire coming out of it. The 120 volt supply will connect to the black and white wires that protrude out of the ballast. Black ballast to black supply and white ballast to white supply.
By looking at the ballast numbers I would say that they can not be substituted. The number 277 in the model number of the first ballast is the voltage supply needed to operate the ballast. The number 120 in the mofel number of the second ballast is the voltage supply needed to operate this ballast. The system looks to be operating on 120 volts as this is the ballast that you want to replace. The ballast that operates on 277 volts is for a three phase four wire system of 277/480. There are multi tap ballast in the market place that are totally universal and have voltage taps for supply voltages of 120, 240, 277,347,480 and 600 volts. You just have to chose the correct voltage tap that the lighting circuit is using. The other taps have to be capped off and taped because when this type of ballast is connected the other taps have a voltage potential on them.
Wiring 347 volts to the 120-volt tap on a multi-tap ballast can cause serious damage to the ballast and connected fixtures. The excessive voltage can lead to overheating, insulation breakdown, and potential failure of the ballast components. This may also pose a fire hazard and could damage the connected lamps or fixtures. It's crucial to always match the voltage rating of the ballast with the supply voltage to ensure safe and proper operation.
By looking at the ballast numbers I would say that they can not be substituted. The number 277 in the model number of the first ballast is the voltage supply needed to operate the ballast. The number 120 in the mofel number of the second ballast is the voltage supply needed to operate this ballast. The system looks to be operating on 120 volts as this is the ballast that you want to replace. The ballast that operates on 277 volts is for a three phase four wire system of 277/480. There are multi tap ballast in the market place that are totally universal and have voltage taps for supply voltages of 120, 240, 277,347,480 and 600 volts. You just have to chose the correct voltage tap that the lighting circuit is using. The other taps have to be capped off and taped because when this type of ballast is connected the other taps have a voltage potential on them.
Operating at half the required voltage, the lamp will not operate at full capacity if it comes on at all.
NO! a 120-277 electronic ballast requires one "hot" wire and a neutral from either a 110V or 277V supply. If you supply it with two "hot" wires from a 208 V supply, it will instantly burn up.Yes. A ballast with a specification range of 120 volt to 277 volt will work on 208 volt. These ballast use intelligent voltage sensing technology and it does not matter if the source is a hot and neutral or two (2) hots. Don't believe it? Call a ballast manufacturer instead of giving incorrect answers.
The way a metal halide light is set up, there's a transformer in it called a "ballast." The ballast powers the bulb. You can wire ballasts to a lot of different voltages--which voltages you can use are dependent on the ballast in question--but 120v single phase is almost always one of the choices. So yes, you can do it.
To attach a 120V light fixture to a 277V system, you will need a step-down transformer with a 277V primary and 120V secondary. This will allow you to safely power the light fixture at the correct voltage. You do not need a ballast in this case, as ballasts are typically used with fluorescent lights and not for altering voltage levels.
If the ballast of the HPS fixture has a 120 volt tap then, yes it can be plugged into a 120 volt receptacle.