Question about Lithonia Lighting Psq500 Power Sentry Inverter Charger

1 Answer

No power to lighting ballast ,only lights up on loss of power 277v at emergency ballast

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 760 Answers

Follow the appropriate wiring exactly. There are about 6-8 different diagrams. Find your lamp type and number of lamps. Locate your ballast type (usually instant these days) Quite often these diagrams show a switch on the power lead going to the operating ballast. If it isn't on a switch be sure to wire it in with the lead to the emergency battery ballast.

Posted on Jul 01, 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:

2 Answers

I have a problem with my TV not going on at all or even having any sound when I try to turn it on. Red and yellow lights flash. The count on them is 5-red and 7-yellow which I seen is a code for a bal

code 57 is communication ballast to chassis problem. try:

Loss of 340V from PWB-POWER to Ballast /

Check PL & CJ1 circuitry

Loss of communications between PWB-MAIN

and Ballast / Check FB & CJ3 circuitry
Ballast Failure

Jan 29, 2015 | Mitsubishi WD-73640 73-Inch 1080p...

1 Answer

I want t replace a mb2x40/120 rs ballast with a 120 277v electronic ballast how do i wire it

A fluorescent light ballast is a transformer that outputs a higher voltage than the input (120 volts). The electrocution hazard is very real.
Practically all ballasts have a drawing printed on the label. As a master electrician I still need the drawing to install them properly. Electronic ballasts should have a black and white wire for input voltage. The output to the lamps will be some combination of: red, yellow, blue.
The new ballast must also be matched to the type of lamp. Old fluorescent lamps were T12 (refers to the diameter). New lamps are T8 and produce more lumens with lower amperage.

Sep 27, 2014 | Electrical Supplies

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

I have a problem, I want to add a photocell to a light, here is the setup, there is a capacitor with 2 wires coming from it, one is free, the other goes to the ballast, then 3 wires on the ballast, to hook...

1) Photocell needs to be wired on incoming power line.
The photocell is a switch, and the switch is powered by incoming voltage... 120V, 240V, 277V, etc.

2) Add comment and describe voltage and how the light is powered.

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

Feb 18, 2013 | Electrical Supplies

1 Answer

400 watt hps grow light just bought it but wont work!

Please review the following information.

Take care note of the discussion of connecting the ballast to the lamp housing and ensuring the ballast is NOT connected to the mains when the lamp housing is connected or disconnected from the ballast.
Also be aware the system will not allow you to turn it off and then immediately turn it back on again. There is a built-in safety feature to ensure the lamp and ballast are not damaged due to loss of utility power. There is a 10-minute delay built into the system in the event utility power is lost..

Nov 01, 2017 | Sunlight Supply 400 Watt Hps Sunsystem I...

1 Answer

I have an LED exit sign that is not working. What steps do I need to do to troubleshoot?

If you've just installed it and it doesn't work, make sure that the ballast is rated for the power you're giving it. If you put 277v to the 120v taps, you've cooked it and the unit will have to be replaced. If you put 120v to the 277v taps, it will probably still work if you take it apart and wire it the correct way.
Otherwise, check all connections within the unit (even the ones you didn't make).

Jun 28, 2010 | Sign Led Emergency Exit - Red

1 Answer

Loss of power steering and battery light and emergency brake lights come on when driving my 2003 santa fe in the rain

2055 Santa Fe. Drove fine, parked for a few hours, battery light on and parking light on, no power steering. Help?

Dec 10, 2009 | Hyundai Santa Fe Cars & Trucks

2 Answers

Kill power to light and emergency single light does not turn on also with power on push test knob and emergency bulb not come on

Hello Ramon, Check the power back (battery cell) as without a functioning battery pack, the emerbency light won't function.

Typically the batery packs will need to be replaced periodically every 4-5 years, depending on the istallation location and ambient temperatures.

When you kill the power to the emergency lighting circuit the PSQ is switched to operate automatically on battery power only. The same thing occurs when you press the test button; it disconnects the lighting from the electric power that keeps the battery charged and ready for service. You might also want to check the bulbs with a test meter (remove the bulbs from the fixture and test with the Ohm setting) While rare that these bulbs burn out, since they aren't usually illuminated often, only during a power disruption/outage, etc.

Here's a link to the Lithonia site with the spec sheets for the PSQ series of emergency lighting products, for your use and reference.

I hope you find this Very Helpful and best regards!

Nov 24, 2009 | Lithonia Lighting Psq500 Power Sentry...

2 Answers

Wire connection from lighting ballast

What you do is cut the wires from the old ballast that feed to the fixture end connectors then 'wire nut' the new ballast wires to the old wires.

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

Oct 02, 2009 | Electrical Supplies

Not finding what you are looking for?
Lithonia Lighting Psq500 Power Sentry Inverter Charger Logo

915 people viewed this question

Ask a Question

Usually answered in minutes!

Top Lithonia Lighting Electronics - Others Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18429 Answers


Level 3 Expert

83850 Answers

Brad Brown

Level 3 Expert

17816 Answers

Are you a Lithonia Lighting Electronics - Other Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides