I'm trying to wrap my head around switches and am getting more confused than anything. I finally understand the difference between NO and NC, and somewhat understand the differences between SPST/SPDT/DPST/DPDT. But what I don't understand is the reason for having 1 Contact Block vs 2 Blocks.
To simplify, how are these 2 Selector switches different and why and when would you want a second block.
2 Way Selector 1 NO contact
http://www.ebrewsupply.com/2-way-1-no-contact-switch/
2 Way Selector 2 NO contacts
http://www.auberins.com/index.php?main_page=product_info&cPath=7_32&products_id=241
Pretty much I'm looking for a simple ON/OFF selector switch to control power to the actual control panel and 2 more for my pumps.
And secondly, how do selector switches vary from a simple rocker switch? I see the selector switches have Contact Blocks and a rocker does not, do they function the same?
I will also need 3 way switches for the automation of my HLT burner with AUTO/OFF/ON options.
What is the main difference between these 2 switches
3 WAY Selector with 2 NO Contacts
http://www.ebrewsupply.com/3-way-2-no-contact-switch/
3 WAY SPDT Rocker switch
https://www.radioshack.com/products/spdt-6amp-switch
To simplify, how are these 2 Selector switches different and why and when would you want a second block.
2 Way Selector 1 NO contact
http://www.ebrewsupply.com/2-way-1-no-contact-switch/
2 Way Selector 2 NO contacts
http://www.auberins.com/index.php?main_page=product_info&cPath=7_32&products_id=241
Pretty much I'm looking for a simple ON/OFF selector switch to control power to the actual control panel and 2 more for my pumps.
And secondly, how do selector switches vary from a simple rocker switch? I see the selector switches have Contact Blocks and a rocker does not, do they function the same?
I will also need 3 way switches for the automation of my HLT burner with AUTO/OFF/ON options.
What is the main difference between these 2 switches
3 WAY Selector with 2 NO Contacts
http://www.ebrewsupply.com/3-way-2-no-contact-switch/
3 WAY SPDT Rocker switch
https://www.radioshack.com/products/spdt-6amp-switch