Lighting Control - Electrical - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical


Thread Tools
Display Modes
Old 10-24-2010, 07:05 AM   #1
Join Date: Oct 2010
Posts: 2
Rewards Points: 10

lighting control

i have two lighting circuits that are controlled by a two pole contactor which in turn is controlled by a time clock.i also have a 20amp breaker which is to be the control circuit.what controls the time clock the control circuit breaker or the lighting circuit rcds.ive built the board but just need some conformation.
johnny k is offline   Reply With Quote
Sponsored Links
Old 10-24-2010, 07:35 AM   #2
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 8,597
Rewards Points: 2,800

Ideally the same breaker the controls the clock should control the lights. Separate breakers are a tad more difficult to troubleshoot. With separate breakers, if one circuit is turned off or trips, the lights will not work (or will be on all the time if the clock was stopped in the on position).

Most contactors do not require that the controlling current and the controlled (switched)_ subcircuits come from the same breaker.
Stick to your lawn watering schedule until it really starts to pour. After the storm you have only the same number of rest days you always had and then you need to start watering again.

Last edited by AllanJ; 10-24-2010 at 07:39 AM.
AllanJ is offline   Reply With Quote
Sponsored Links
Old 10-24-2010, 10:23 AM   #3
Join Date: Jun 2007
Posts: 4,110
Rewards Points: 310

Lighting contactors are used when the lighting load exceeds the current rating of standard snap switches or you just have alot of lights. Of course you already know this, as you are building the control board.

The time clock requires 24-7-365 power for the timer motor. The contactor is used to switch the lighting load and nothing more. Since this is a control circuit, you can get as creative as you want.
Power the clock and let the clock turn on the contactor. You did not mention the lighting load requirement. Whats the current.
You can use power from one of the lighting circuits to control the contactor and clock or you can use another source. It does not matter.
J. V. is offline   Reply With Quote
Sponsored Links

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Dishwasher Control Panel Zen Nomad Appliances 0 10-02-2010 11:00 AM
Lighting Control C_Morgan Electrical 8 08-26-2010 05:22 PM
Lighting - Control Factor? mstefan Electrical 1 05-21-2010 06:50 PM
Need lighting control solution mmccarty Electrical 9 08-25-2009 09:13 PM
track lighting turns on and no longer has dimmer control nyfilm123 Electrical 5 06-04-2009 11:03 PM

Top of Page | View New Posts