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Timers

There are many applications where a timer is important. HVAC equipment, freezers and even lighting in an industrial setting often needs to be placed on a timer so that it will turn on when required, and turn off when not needed. Timers help protect power supplies by eliminating unnecessary stops and starts of equipment, and they can also help lower energy use by turning off equipment automatically. Grainger offers timers for many different applications, so today's businesses can be energy conscious while still benefiting from their electrical equipment.

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Timers Q&A

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Timers
(11 Questions : 18 Answers)

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2 years, 3 months ago
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Answer: 
Technically, a timer with 1 pole can turn a 120v or 240v circuit on or off. The difference is in the 240v circuit; one leg of the circuit will be switched on and off while the other leg will remain hot to the device at all times. Safety, among other reasons, generally dictates that you use a switch with the appropriate number of poles.

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Age: 35 to 44
2 years, 3 months ago
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Answer: 
You need a two pole for a 220 circuit
1 year, 10 months ago
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Answer: 
would have to have a neutral for single pole. 120 or 277, not 220.
need a 2-pole for that.
1 year, 9 months ago
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Do you carry an Astrological time clock?
1 year, 7 months ago
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Answer: 
Yes. Grainger stocks astronomic timers. There are many to choose from, but a couple of basic timers to begin looking at are Grainger item numbers 4JNF4, 2YMV9 and 4WZ09.

Please call us at 800-323-0620 so we can discuss your application and aid you in selecting the proper timer for your project.

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1 year, 7 months ago
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Answer: 
3FWZ4 is a wall-switch type timer. I'm not sure what you mean
by Astrological timer, but this one will automatically change times based on your geographical location. It tracks dawn-to-dusk times, which change with the season.
If that is what you meant, than this timer is a good one.
1 year, 7 months ago
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Answer: 
They have astronomic timeers that automatically adjust time of day for your longitude and latitude; they also adjust for DST...
Is that what you needed?
1 year, 6 months ago
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I am looking for a timer with for use on projectors. Something that is plugged into a "hot all the time" outlet and a "switched" outlet. When switched outlet goes hot output turns on. When switched outlet goes off, the output is delayed approximately 10 minutes before shutting off. I could make one but thought it would be easy to find one pre-made. Boy was I wrong. This setup allows projectors and other equipment to be "turned off" but still allow time to cool down. Anybody seen anything like this let me know. Thanks.
4 months, 2 weeks ago
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Answer: 
Unfortunately Grainger does not currently stock anything like the timer you describe. The biggest issue to overcome is how to store the necessary power within the timer that will allow the load to continue to operate without a voltage presence.

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4 months, 2 weeks ago
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Answer: 
If the bulb and the fan are switched seperatly, it shouldn't too hard.
If they are, and not actually seeing the unit, a simple off-delay timer is all that is needed.
You turn on the unit as usual. When you turn it off the time delay keeps the fan running for the pre-set time and turns off. It all resets when power is applied next time.
The power wires to the fan will need to be seperated out and run to the timer, probably in a outboard small box.
1 month, 1 week ago
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I have a light that is controlled by a spst switch. I would like to put it on a timer, but there is no means for powering a timer motor. I know that there are timers that mechanically throw an existing wall switch. Are there any other options, such as a timer that operates a SPST switch that is powered by an internal battery...?
1 year, 9 months ago
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Answer: 
Currently, all of our timers will require a hardwired power source. We have none that are battery-operated only.

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1 year, 9 months ago
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Answer: 
3FWZ4 should do the trick. 7-day timer, see the description online or in the catalog
1 year, 9 months ago
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when a timer indicates it has 2 channels; does this mean it can program 2 independent pumps with independent time schedules? I want to turn my pool filter pump on at a certain time schedule and my pool sweeper on at a different time schedule.
1 year, 9 months ago
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Answer: 
That is correct - it will run two appliances independently.
1 year, 5 months ago
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Answer: 
2-channels mean 2 relay outputs independantly programmed. Check the timers on pg 407 of catalog 403.
1 year, 9 months ago
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1 year, 7 months ago
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Answer: 
We need more information to get you to a specific part number. We need to answer questions like: does this timer need a reference to time of day? and what length of time?

Please call us at 800-323-0620 so we can discuss your timer needs in more detail.

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1 year, 6 months ago
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Previously we used a timer operated by 12v DC battery bank to switch the 120 v AC inverter output. Timers which we have inserted between the inverter and load do not keep proper time. It would seem that switching between the battery bank and inverter would require switching over 20 amps. Switching the 120 v AC inverter output 210 watts of only 2 amps. The inverter does not have sleep mode so we do not know why the clock portion of timer does not work. Is there a battery powered (Displqy and Switch) device which can switch the inverter ?
1 year, 4 months ago
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Answer: 
The 12VDC timers Grainger carries are item numbers 4CCC4, 4CCC2, AND 4CCC3. They are limited to 16A Resistive loads.

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1 year, 4 months ago
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1 year, 1 month ago
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Answer: 
Please take a look at these basic timers to see it they will meet your needs.

3NZR6
2DBE9
3GZX5
14F313
14F316
9NLW2

We have a large selection and these are just a few options. Thank you for using Grainger.com Ask & Answer.
1 year, 1 month ago
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I have a sailboat with an automatic bilge pump. When I come aboard, I want to see how many seconds the bilge pump ran when I was away. Display should be 5 digits or more. It needs a reset button to set it back to zero. My sailboat runs on 12 Volt DC. It would be nice if it was flush mounting LCD display that would use no electricity when it wasn't switched on by the bilge pump running. Maybe it could have a button that shows the reading when it isn't running, then lets it go dark when the button is released.
10 months ago
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Answer: 
Grainger does have a timer that should meet your needs. Please look at item number 13C868.

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10 months ago
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Hi

I'm looking for a wall plug timer that allows for more than 7 day intervals, like f.inst monthly or even arbitrarily number of days between power cycling

Can you point me to such a unit?
Br
Ole Bjerregaard
5 months, 3 weeks ago
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Answer: 
Grainger item numbers 6WPA0, 30C512, 30C513, 30C514, 6PFY4, 6PFY5 and 23YU35 all have a random feature to them, however, none have programing beyond 7 days.

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5 months, 2 weeks ago
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