05:01PM | 09/15/03
Member Since: 07/20/03
17 lifetime posts
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?


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.


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



Post a reply as Anonymous

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


type the code from the image


Post_new_button or Login_button

Having settled on a shape for the faucet, you must next decide on a finish. While polished chrome and brass are perennial ... It turns out that many bath and kitchen cleansers contain chemicals that are dangerous to the skin and eyes, and often pro... So often we paint tiny nooks white to make them appear larger, but opting for a dark, dramatic wall color like this one—Be... Chocolate-colored walls and large window frames allow the exposed wood beams to take center stage in this small screened p... If you're not crazy about the idea of commingling plants and pool, this modern variation may be more to your liking. The s... 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... Pursue what's known as the stack effect. To achieve it, open the windows on both the upper and lower floors, and as warm a... Like no other floor type, a checkerboard design works wonders to underscore the retro kitchen theme. Vinyl flooring, ceram... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... For the cost of a can of exterior paint , you can totally transform your porch. Paint the floor a hue that complements yo... In this urban apartment, a standard-issue patio became a serene and green perch by replacing the typical concrete with gro... If you put the washing machine in the mudroom, you can stop the kids from walking through the house in dirty, grass-staine...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon