What is the advantage of using an eccentric knockout?
The RACO TKO (eccentric) knockouts offers greater flexibility
with it's patented combination 1/2" and 3/4" knockout. Stock just one product
instead of two or three. One product for the installer to carry.
Does the TKO provide reliable grounding path?
Independent tests conducted by U L prove that the TKO can
pass the same high-current fault test used to test grounding bushings and
ground lugs. RACO's TKO knockout, which is U L Listed, provides bonding without
the use of bonding jumpers.Suitable for bonding without any additional bonding
means around concentric (or eccentric) knockouts where used in circuits
above or below 250 volts. This knockout does not impair the electrical connection
to ground.
What gauge of steel is used in your steel boxes?
Steel boxes and covers are made of .0625 inch thick galvanized
sheet steel.
