Question about Optoma EZPRO 580 Metal Halide Replacement Lamp 250W [ Technology SP.80507.001 ] Projector Lamp

1 Answer

How to install 277 volts and how too get it. What are the requirements?

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 35 Answers

Huh? could you possible be more obtuse?

Posted on Oct 27, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Any wiring diagram for a 277 volt emergency lighting ballast

If you refer to emergency lighting tube with 277 volt, here is the wiring diagram for your reference:

Apr 08, 2014 | Electrical Supplies

1 Answer

Show how to set the itermatic et821c

Following link has manual for Intermatic ET8100 series
Choose astronomic dawn-dusk timer -or- 7-day programming

be sure to install two AAA batteries in compartment located on front just below the buttons.
Also reset the timer prior to programming ... and this will clear any conflicts or prior programming.
Timer default voltage is 120 volt AC. Choose 208-240-277 volt by moving selector switch located on back of timer.


Water Heater Timers Save Money

If you need further help, I’m available over the phone at

Jan 17, 2014 | Intermatic ET8215C- 7-Day Electronic...

1 Answer

How to connect a 3 floresent bulb ballast to 277 voltage power source

first you need to know that the ballast is 277 volts or you will fry it, 120 volt ballast will not work on a 277 volt system, i suggest that you need to get an electrician to help you with this, if you hook it up wrong it will cause a problem

Nov 19, 2011 | Home

1 Answer

Hanging a outside light 277 volt 700 watt bulb. What size wire and breaker ic need

where are you putting this? on a commercial building? cause most homes do not have 277, if yes then use a 30 amp and # 10 wire

Oct 06, 2011 | Home

1 Answer

LP126HD3A rated for 265 volts AC single phase I have 240V ac single phase, how can I use this unit on 240V ac

You'd need to supply a "Buck-Boost" transformer to do this properly. Technically, the 265 VAC is one hot leg and neutral of a 480 VAC 3 Phase Y system that measures 277 VAC. The 265 number comes from this:

265 is the standard nameplate voltage for a 277 volt motor or AC unit.

230 is standard name plate for 240.
200 is standard name plate for 208
460 is standard name plate for 480.
110 is standard name plate for 120.

Most electricians call the hot leg / neutral circuit "277V AC".

Some popular "Buck-Boost" transformers will convert 208 to 240 and 240 to 208 volt systems, and 240 to 277 and 277 to 240 volt systems - among many other variations. These are auto-transformers as the primary secondary windings share a connection. KVA ratings differ significantly from name plate because of this fact. You should contact a qualified electrician to not only size, but wire the transformer for you. Failure to install a Buck-Boost transformer - and running this unit on 240V AC mains will cause premature failure of motors - fans and compressor due to overheating. This can also result in a fire hazard.

I hope this helps and good luck!

Sep 06, 2011 | LG LP126HD3A Air Conditioner

1 Answer

How to install 692 series light switch

P&S 692 is pilot light switch.
Pilot light requires neutral wire. Neutral wires are white wires twisted together and covered with wire nut located in back of electric box.
P&S 692 wires same as Cooper 277

Jun 20, 2011 | Pass & Seymour #692LAGCC6 15A Almond SP...

1 Answer

Hello i have an intermatic model #t104r 208-277 volt my problem is that it works manually but it doesnt work automatically? whats wrong?

If you can also manually turn the dial so that the load turns ON and OFF, then the timer motor is bad :-( Replacements are available here for about $30:
Scroll down to "WG 1573", Timer motor 208-277"

Dec 10, 2009 | Intermatic T104R 208-277Volt 40-amp Timer...

Not finding what you are looking for?
Office Equipment & Supplies Logo

Related Topics:

46 people viewed this question

Ask a Question

Usually answered in minutes!

Top Optoma Office Equipment & Supplies Experts


Level 3 Expert

2237 Answers

color wheel light...
color wheel light...

Level 2 Expert

138 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Are you an Optoma Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides