IM05805022K
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Instruction Booklet
Effective: January 2012
Page
9
ATC-300+ Automatic
Transfer Switch Controller
2.3 Rear Access Area
The rear access area of the ATC-300+ Controller is normally
accessible from the rear of an open panel door (Figure 2).
Figure 2. ATC-300+ Controller (Rear View).
All wiring connections to the ATC-300+ Controller are made at
the rear of the chassis.
Note:
To allow for uniform identification, the frame of reference when dis-
cussing the rear access area is with the panel door open and the User fac-
ing the back of the ATC-300+ Controller.
Located at the left rear of the chassis are connectors J1, J2, and
J7. J1 and J2 provide for voltage monitoring of Source 1 and
Source 2 respectively. J7 is provided for Sources 1 and Source 2
control power input. Located at the right rear of the chassis is the
J3 programming port connector. The J4 and J5 connectors are
located at the bottom of the controller. The J4 connector pro-
vides DC wetted connections for various control inputs. The J5
and J8 connectors provide dry relay contacts for primary control
outputs.
See Section 5.5.1 for contact ratings.