Concentric knockouts on circuits over 250 volts [RE-wrenches]

[Mark Frye]

this is great I'm learning new things that can improve my skills and 
knwoledge. Thanks RE-wrenches.

Unfortunately, i went ahead and contacted the manufacture of the DC 
switch that I use.  It appears that knockouts on this switch are not 
rate for "bonding".  Guess I will have to using bonding bushings in the 
future unless some other wrench can post a code exception.

Below is the link to product info:

http://www.squared.com/us/products/motor_control.nsf/unid/DB9C2F2BDABA3AF485256C2200692460/$file/faqFrameset.htm


Search for "heavy duty safety switch, knockout" and see the 6th FAQ.

Mark Frye

Berkeley Solar Electric Systems


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