COMMUNITY FORUM

electricgirl

05:01PM | 09/15/03
Member Since: 07/20/03
17 lifetime posts
Bvelectrical
What kind of disconnecting means do I need for my well pump? It is 1/2HP, on a 2pole 20amp breaker.
Can I use a regular 2pole switch, or do I need a disconnect box?
Thanks!

MrElectricOly

08:50PM | 09/16/03
Member Since: 05/11/03
62 lifetime posts
No you can not use a standard switch. You need a "disconnect" that is rated at 20 amps 240 volt minimum. Be sure it is a two pole (so you can disconnect both hot wires) disconnect.

Tom O

02:17PM | 09/17/03
Member Since: 09/17/02
477 lifetime posts
You may not need a disconnect at all if the following two conditions are met, the controller is within sight of and within 50 feet of the circuit breaker for the pump.

If you do need a disconnect, then it would be possible to use a general-use snap switch suitable for use on AC current only, where the full load current of ther motor does not exceed 80% of the ampere ratiing of the switch. In my opinion, a 2 pole 20 amp switch will be fine for this application.

Also, I feel that your circuit breaker size is too big. Unless the nameplate on your pump calls for a 20 amp breker, a 1/2 horsepower motor at 230 volts should be on a 15 amp breaker.

Tom

[This message has been edited by Tom O (edited September 17, 2003).]

Click_to_reply_button
Inspiration_banner

INSPIRATION GALLERY



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.

Reply_choose_button

Anonymous

Post_new_button or Login_button
Register

With its gloomy exterior and secret passageways, Franklin Castle certainly lives up to its title: the Most Haunted House i... Filling an underutilized area beneath the stairs is a smart way to save space. Doing so with a stash of wood, however, is ... The Audubon Society inspired wallpaper in this Adirondack-styled entryway will get you in the outdoor mood. Grab your coat... Chalkboard paint opens up endless possibilities for customizing your dresser time and time again. Use chalk to label the c... A fireplace in the bathroom creates the ultimate setting for relaxation. Homeowners often choose electric or gas over wood... Yes, a freestanding garage can become its own tiny house. Artist Michelle de la Vega has all the comforts of a modern resi... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... A kitchen in a greenhouse—who wouldn't enjoy spending time in this light-filled space? Details that enhance the conservato... Chalkboard paint features prominently in this elegant yet unpretentious headboard design. Add a new message daily to reflec... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... The indecisive homeowner need not fret over choosing one (or even two) cabinet colors. The kitchen cabinets in this artist... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... Simple and striking, a couple of pieces of "lovingly used" furniture creates a special kind of charm. A weathered chair fo... The Infinite Artisan Fire Bowl from Eldorado Outdoor is made from glass-fiber reinforced concrete, and offered in Oak Barr... The vibrant green of Granny Smith apples make a beautifully natural alternative to the traditional evergreen wreath. Brigh...
Follow_banner_a
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon
 
webapp1