Jump to content
Did you know?
  • The original Rudolph did not have a red nose. In that day and age, red noses were seen as an indicator of chronic alcoholism and Montgomery Ward didn’t want him to look like a drunkard. To complete the original picture, he was almost named Reginald or Rollo.
  • The Christmas wreath was originally hung as a symbol of Jesus. The holly represents his crown of thorns and the red berries the blood he shed.
  • The three traditional colors of most Christmas decorations are red, green and gold. Red symbolizes the blood of Christ, green symbolized life and rebirth, and gold represents light, royalty and wealth.
  • Tinsel was invented in 1610 in Germany and was once made of real silver.
  • The oldest artificial Christmas trees date back to the late 1800s and were made of green raffia (think grass hula skirts) or dyed goose feathers. Next the Addis Brush Company used their machinery that wove toilet brushes to create pine-like branches for artificial Christmas trees that were less flammable and could hold heavier decorations.
  • ‘Jingle Bells’ – the popular Christmas song was composed by James Pierpont in Massachusetts, America. It was, however, written for thanksgiving and not Christmas.
  • Coca-Cola was the first company that used Santa Claus during the winter season for promotion.
  • Hallmark introduced their first Christmas cards in 1915.
  • The first recorded date of Christmas being celebrated on December 25th was in 336, during the time of the Roman Emperor Constantine. A few years later, Pope Julius I officially declared that the birth of Jesus would be celebrated on that day.
  • Santa Claus's sleigh is led by eight reindeer: Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Dunder (variously spelled Donder and Donner), and Blixem (variously spelled Blixen and Blitzen), with Rudolph being a 20th-century inclusion.
  • Outdoor Christmas lights on homes evolved from decorating the traditional Christmas tree and house with candles during the Christmas season. Lighting the tree with small candles dates back to the 17th century and originated in Germany before spreading to Eastern Europe.
  • That big, jolly man in the red suit with a white beard didn’t always look that way. Prior to 1931, Santa was depicted as everything from a tall gaunt man to a spooky-looking elf. He has donned a bishop's robe and a Norse huntsman's animal skin. When Civil War cartoonist Thomas Nast drew Santa Claus for Harper's Weekly in 1862, Santa was a small elflike figure who supported the Union. Nast continued to draw Santa for 30 years, changing the color of his coat from tan to the red he’s known for today.
  • Christmas 2018 countdown has already begun. Will you be ready???
  • Why do we love Christmas? It's all about the traditions. In this chaotic world we can miss the "good old days." Christmas reminds us of that time.
CameronInGA

Electrician Question: Mechanical Relays To Control 20A Branch Circuits

Recommended Posts

Before I set my display for next year, I need to install some dedicated circuits. I have plenty of room in my subpanel, and intend to install four 20A dedicated circuits, which each circuit supplying a duplex receptacle installed on the soffit board under the eaves along the front of the house. That's the easy part... :)

 

I would like to figure out a way to put all four circuits on a timer so they turn on and off simultaneously. I think I need some sort of mechanical relay setup to accomplish this. I figure I could approach this two ways:

 

1. Use a 15A in wall timer on a fifth circuit to drive relays that energize the four new circuits.

2. Use a water-heater time to turn on two of the new circuits, and then relays to energize the remaining two circuits.

 

Does anyone have any experience with this sort of setup?

Share this post


Link to post
Share on other sites

Consider a lighting contactor. I've used them in commercial and residential projects for security lighting and/or landscape lighting projects. A single time clock can be used to power up multiple circuits or lighting loads at the same time. I recently used a 16 pole contactor for a large residential project to control low voltage, line voltage, and motor loads (water pumps for fountains). I used 13 poles of a 16 pole contactor so there is room for expansion. I'm controlling it with an Intermatic astronomical time clock for self-adjusting dusk to dawn & daylight savings time operation.

Share this post


Link to post
Share on other sites

I use 2 6 pole 40 amp rated contactors.  1 electronic time clock turns them both on. The first one ( 6 circuits) energizes immediately upon the timer contact closure, the second via a 5 second time delay relay, ( 5 circuits) so the entire load, approx. 200 amps, does slam in all at once.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...