Need a timer for 240v irrigation well

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  #1  
Old 01-18-15, 03:24 PM
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Need a timer for 240v irrigation well

Hello,
I live in Fremont County, Colorado. I am looking for help with finding a timer/relay for my 220v, 5hp, 28amp, 70gpm agricultural irrigation well. The existing control is a set of 2 -30amp circuit breakers in a Siemens A series type 3R outdoor load center. I want to be able to set the pump to run daily for 30 60 minutes during the growing season. Can anyone suggest a timer/relay, and/or combination, that would work for this application?

Thanks,
Matt G
 
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  #2  
Old 01-18-15, 03:58 PM
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Welcome to the forums.

You mentioned the type 3R outdoor load center..... was that for size requirements ?

You need a basic timer and a two pole motor duty contactor.
There are many choices.... will you be purchasing at an electrical supply house or online ?
 
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Old 01-18-15, 04:29 PM
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I use this type for my diesel engine heater. Selectable voltage. GE, 7 Day Digital Outdoor Box Timer and On/Off Per Day, 15136 at The Home Depot - Tablet
 
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Old 01-18-15, 08:11 PM
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Can anyone suggest a timer/relay, and/or combination, that would work for this application?
It sounds like you need a basic single phase starter and a basic timer. You may be able to get away with a definite purpose contactor rather than a full blown starter.
 
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Old 01-19-15, 05:41 AM
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How is the pump controlled now,you must already have some sort of Contactor to control a 5 HP pump.
Geo
 
  #6  
Old 01-19-15, 06:33 PM
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Thanks for the responses

The pump is controlled by a pair of 30 amp circuit breakers in a type 3r outdoor load center which was in place when I purchased the property. I was hoping someone could recommend a specific model/part number of timer and contactor that I could buy online.
 
  #7  
Old 01-19-15, 07:40 PM
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I was hoping someone could recommend a specific model/part number of timer and contactor that I could buy online.
Why don't you just stop by your local electrical supply house, I am sure they'd be happy to help you, but they would also expect you to buy from them.
 
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Old 01-19-15, 08:31 PM
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Here is the contactor I would recommend.... EATON C25dnf240a
amazon/C25dnf240a-Definite-Purpose-Contactor-Terminals/
A good quality 40A 240V contactor with a 120vac coil.

Here is a timeclock.... same one Larry recommended....
Amazon: GE 7-Day On/Off Outdoor Metal Box Timer

And a weatherproof box to house the contactor...
Ipex077664 PVC Junction Box 8" x 8" x 4" - - Amazon
200mmx200mmx130mm Waterproof Plastic Sealed Electric Junction Box Case - Amazon
amazon/Plastic-Electrical-Enclosure-Junction-250x200x100/weatherproof box
 
  #9  
Old 01-20-15, 09:35 AM
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Is this pump above ground,is it thermally protected? 1 pump with 2 30 amp 2 pole breakers?something seems odd, can you post pic's of that setup?
Geo
 
  #10  
Old 01-20-15, 09:42 AM
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1 pump with 2 30 amp 2 pole breakers?something seems odd, can you post pic's of that setup?
I don't believe the OP ever mentioned the breakers as being 2 pole. I suspect he has two single pole 30 amp breakers. Yes, a picture would help to clarify.
 
  #11  
Old 01-20-15, 10:35 AM
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I guess I took that for granit,but still would be nice to know if it is a submersible , if not is it thermally protected ,that would help determine the type of control necessary.
JMO
Geo
 

Last edited by Geochurchi; 01-20-15 at 10:36 AM. Reason: Grammar correction
  #12  
Old 01-21-15, 07:46 AM
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if not is it thermally protected ,that would help determine the type of control necessary.
I agree. That is why I said.....

You may be able to get away with a definite purpose contactor rather than a full blown starter.
The keyword here being "MAY".
 
  #13  
Old 01-21-15, 04:53 PM
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Pump info

The pump is a 5 hp submersible at approximately 60 feet. I believe the circuit breakers are single pole breakers, but I'm not an electrician, so I can't say for sure.
 
  #14  
Old 01-21-15, 06:56 PM
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Are these breakers inside a dry location?first change the single breakers to a 2 pole 30amp,assuming this is in a dry location you could use a controller such as this,gives a little more motor protection
http://www.amazon.com/Magnetic-Start...B004TGTU0W,and a time clock such as this.Amazon.com : Intermatic T101 24 Hour Dial Timer, Indoor Only : Swimming Pool Heater And Heat Pump Parts : Patio, Lawn & Garden
Post a pic of the breakers
Geo
 
  #15  
Old 01-24-15, 07:38 AM
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Thanks!

That looks like exactly what I was looking for.
 
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