For more information visit: www.eaton.com IB01602008E
Instructional Booklet
Page 28 Effective: March 2014
ATC-300 Breaker Based Transfer Switch
Figure 26.Line Voltage Plug and Receptacles for Horizontal
Design.
4.9 Terminal Block Wire Installation and Removal
Proceed with the following steps and associated figures to install
or remove terminal block wiring.
Step 1: Figure 27 shows two tension clamp terminal blocks.
There is a large one and small one, but the operation is
the same for both. A small tool, such as a screwdriver,
will be pushed into the square hole next to the wire hole
and a wire will be inserted into the larger circular hole on
the outer edge.
Figure 27.Tension Clamp Terminal Blocks.
Step 2: Begin by inserting a small, flathead screwdriver into the
square (tool) hole with the flat surface of the screwdriver
against the back wall of the hole. With a little bit of
force, push the screwdriver in on a slight angle toward
the center of the clamp. Be sure to slide it in until it
clicks. You will then see the clamp open in the wire hole.
Figure 28.Screwdriver Inserted in the “Tool” Hole.
Step 3: Once the screwdriver is in place, obtain a stripped wire
(strip about 1/4 in.) and insert it into the larger circular
wire hole. Push the wire in until it can go no further.
Figure 29.Wire Inserted in the “Wire” Hole.
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